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This commit is contained in:
astaxie 2016-12-05 23:07:45 +08:00
parent 71e23417c6
commit 28324a2756
141 changed files with 29958 additions and 0 deletions
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13
vendor/github.com/astaxie/beego/LICENSE generated vendored Normal file
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Copyright 2014 astaxie
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

171
vendor/github.com/astaxie/beego/swagger/swagger.go generated vendored Normal file
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// Copyright 2014 beego Author. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Swagger™ is a project used to describe and document RESTful APIs.
//
// The Swagger specification defines a set of files required to describe such an API. These files can then be used by the Swagger-UI project to display the API and Swagger-Codegen to generate clients in various languages. Additional utilities can also take advantage of the resulting files, such as testing tools.
// Now in version 2.0, Swagger is more enabling than ever. And it's 100% open source software.
// Package swagger struct definition
package swagger
// Swagger list the resource
type Swagger struct {
SwaggerVersion string `json:"swagger,omitempty" yaml:"swagger,omitempty"`
Infos Information `json:"info" yaml:"info"`
Host string `json:"host,omitempty" yaml:"host,omitempty"`
BasePath string `json:"basePath,omitempty" yaml:"basePath,omitempty"`
Schemes []string `json:"schemes,omitempty" yaml:"schemes,omitempty"`
Consumes []string `json:"consumes,omitempty" yaml:"consumes,omitempty"`
Produces []string `json:"produces,omitempty" yaml:"produces,omitempty"`
Paths map[string]*Item `json:"paths" yaml:"paths"`
Definitions map[string]Schema `json:"definitions,omitempty" yaml:"definitions,omitempty"`
SecurityDefinitions map[string]Security `json:"securityDefinitions,omitempty" yaml:"securityDefinitions,omitempty"`
Security map[string][]string `json:"security,omitempty" yaml:"security,omitempty"`
Tags []Tag `json:"tags,omitempty" yaml:"tags,omitempty"`
ExternalDocs *ExternalDocs `json:"externalDocs,omitempty" yaml:"externalDocs,omitempty"`
}
// Information Provides metadata about the API. The metadata can be used by the clients if needed.
type Information struct {
Title string `json:"title,omitempty" yaml:"title,omitempty"`
Description string `json:"description,omitempty" yaml:"description,omitempty"`
Version string `json:"version,omitempty" yaml:"version,omitempty"`
TermsOfService string `json:"termsOfService,omitempty" yaml:"termsOfService,omitempty"`
Contact Contact `json:"contact,omitempty" yaml:"contact,omitempty"`
License *License `json:"license,omitempty" yaml:"license,omitempty"`
}
// Contact information for the exposed API.
type Contact struct {
Name string `json:"name,omitempty" yaml:"name,omitempty"`
URL string `json:"url,omitempty" yaml:"url,omitempty"`
EMail string `json:"email,omitempty" yaml:"email,omitempty"`
}
// License information for the exposed API.
type License struct {
Name string `json:"name,omitempty" yaml:"name,omitempty"`
URL string `json:"url,omitempty" yaml:"url,omitempty"`
}
// Item Describes the operations available on a single path.
type Item struct {
Ref string `json:"$ref,omitempty" yaml:"$ref,omitempty"`
Get *Operation `json:"get,omitempty" yaml:"get,omitempty"`
Put *Operation `json:"put,omitempty" yaml:"put,omitempty"`
Post *Operation `json:"post,omitempty" yaml:"post,omitempty"`
Delete *Operation `json:"delete,omitempty" yaml:"delete,omitempty"`
Options *Operation `json:"options,omitempty" yaml:"options,omitempty"`
Head *Operation `json:"head,omitempty" yaml:"head,omitempty"`
Patch *Operation `json:"patch,omitempty" yaml:"patch,omitempty"`
}
// Operation Describes a single API operation on a path.
type Operation struct {
Tags []string `json:"tags,omitempty" yaml:"tags,omitempty"`
Summary string `json:"summary,omitempty" yaml:"summary,omitempty"`
Description string `json:"description,omitempty" yaml:"description,omitempty"`
OperationID string `json:"operationId,omitempty" yaml:"operationId,omitempty"`
Consumes []string `json:"consumes,omitempty" yaml:"consumes,omitempty"`
Produces []string `json:"produces,omitempty" yaml:"produces,omitempty"`
Schemes []string `json:"schemes,omitempty" yaml:"schemes,omitempty"`
Parameters []Parameter `json:"parameters,omitempty" yaml:"parameters,omitempty"`
Responses map[string]Response `json:"responses,omitempty" yaml:"responses,omitempty"`
Deprecated bool `json:"deprecated,omitempty" yaml:"deprecated,omitempty"`
}
// Parameter Describes a single operation parameter.
type Parameter struct {
In string `json:"in,omitempty" yaml:"in,omitempty"`
Name string `json:"name,omitempty" yaml:"name,omitempty"`
Description string `json:"description,omitempty" yaml:"description,omitempty"`
Required bool `json:"required,omitempty" yaml:"required,omitempty"`
Schema *Schema `json:"schema,omitempty" yaml:"schema,omitempty"`
Type string `json:"type,omitempty" yaml:"type,omitempty"`
Format string `json:"format,omitempty" yaml:"format,omitempty"`
Items *ParameterItems `json:"items,omitempty" yaml:"items,omitempty"`
Default interface{} `json:"default,omitempty" yaml:"default,omitempty"`
}
// A limited subset of JSON-Schema's items object. It is used by parameter definitions that are not located in "body".
// http://swagger.io/specification/#itemsObject
type ParameterItems struct {
Type string `json:"type,omitempty" yaml:"type,omitempty"`
Format string `json:"format,omitempty" yaml:"format,omitempty"`
Items []*ParameterItems `json:"items,omitempty" yaml:"items,omitempty"` //Required if type is "array". Describes the type of items in the array.
CollectionFormat string `json:"collectionFormat,omitempty" yaml:"collectionFormat,omitempty"`
Default string `json:"default,omitempty" yaml:"default,omitempty"`
}
// Schema Object allows the definition of input and output data types.
type Schema struct {
Ref string `json:"$ref,omitempty" yaml:"$ref,omitempty"`
Title string `json:"title,omitempty" yaml:"title,omitempty"`
Format string `json:"format,omitempty" yaml:"format,omitempty"`
Description string `json:"description,omitempty" yaml:"description,omitempty"`
Required []string `json:"required,omitempty" yaml:"required,omitempty"`
Type string `json:"type,omitempty" yaml:"type,omitempty"`
Items *Schema `json:"items,omitempty" yaml:"items,omitempty"`
Properties map[string]Propertie `json:"properties,omitempty" yaml:"properties,omitempty"`
}
// Propertie are taken from the JSON Schema definition but their definitions were adjusted to the Swagger Specification
type Propertie struct {
Ref string `json:"$ref,omitempty" yaml:"$ref,omitempty"`
Title string `json:"title,omitempty" yaml:"title,omitempty"`
Description string `json:"description,omitempty" yaml:"description,omitempty"`
Default interface{} `json:"default,omitempty" yaml:"default,omitempty"`
Type string `json:"type,omitempty" yaml:"type,omitempty"`
Example string `json:"example,omitempty" yaml:"example,omitempty"`
Required []string `json:"required,omitempty" yaml:"required,omitempty"`
Format string `json:"format,omitempty" yaml:"format,omitempty"`
ReadOnly bool `json:"readOnly,omitempty" yaml:"readOnly,omitempty"`
Properties map[string]Propertie `json:"properties,omitempty" yaml:"properties,omitempty"`
Items *Propertie `json:"items,omitempty" yaml:"items,omitempty"`
AdditionalProperties *Propertie `json:"additionalProperties,omitempty" yaml:"additionalProperties,omitempty"`
}
// Response as they are returned from executing this operation.
type Response struct {
Description string `json:"description,omitempty" yaml:"description,omitempty"`
Schema *Schema `json:"schema,omitempty" yaml:"schema,omitempty"`
Ref string `json:"$ref,omitempty" yaml:"$ref,omitempty"`
}
// Security Allows the definition of a security scheme that can be used by the operations
type Security struct {
Type string `json:"type,omitempty" yaml:"type,omitempty"` // Valid values are "basic", "apiKey" or "oauth2".
Description string `json:"description,omitempty" yaml:"description,omitempty"`
Name string `json:"name,omitempty" yaml:"name,omitempty"`
In string `json:"in,omitempty" yaml:"in,omitempty"` // Valid values are "query" or "header".
Flow string `json:"flow,omitempty" yaml:"flow,omitempty"` // Valid values are "implicit", "password", "application" or "accessCode".
AuthorizationURL string `json:"authorizationUrl,omitempty" yaml:"authorizationUrl,omitempty"`
TokenURL string `json:"tokenUrl,omitempty" yaml:"tokenUrl,omitempty"`
Scopes map[string]string `json:"scopes,omitempty" yaml:"scopes,omitempty"` // The available scopes for the OAuth2 security scheme.
}
// Tag Allows adding meta data to a single tag that is used by the Operation Object
type Tag struct {
Name string `json:"name,omitempty" yaml:"name,omitempty"`
Description string `json:"description,omitempty" yaml:"description,omitempty"`
ExternalDocs *ExternalDocs `json:"externalDocs,omitempty" yaml:"externalDocs,omitempty"`
}
// ExternalDocs include Additional external documentation
type ExternalDocs struct {
Description string `json:"description,omitempty" yaml:"description,omitempty"`
URL string `json:"url,omitempty" yaml:"url,omitempty"`
}

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vendor/github.com/astaxie/beego/utils/caller.go generated vendored Normal file
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// Copyright 2014 beego Author. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package utils
import (
"reflect"
"runtime"
)
// GetFuncName get function name
func GetFuncName(i interface{}) string {
return runtime.FuncForPC(reflect.ValueOf(i).Pointer()).Name()
}

478
vendor/github.com/astaxie/beego/utils/debug.go generated vendored Normal file
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// Copyright 2014 beego Author. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package utils
import (
"bytes"
"fmt"
"log"
"reflect"
"runtime"
)
var (
dunno = []byte("???")
centerDot = []byte("·")
dot = []byte(".")
)
type pointerInfo struct {
prev *pointerInfo
n int
addr uintptr
pos int
used []int
}
// Display print the data in console
func Display(data ...interface{}) {
display(true, data...)
}
// GetDisplayString return data print string
func GetDisplayString(data ...interface{}) string {
return display(false, data...)
}
func display(displayed bool, data ...interface{}) string {
var pc, file, line, ok = runtime.Caller(2)
if !ok {
return ""
}
var buf = new(bytes.Buffer)
fmt.Fprintf(buf, "[Debug] at %s() [%s:%d]\n", function(pc), file, line)
fmt.Fprintf(buf, "\n[Variables]\n")
for i := 0; i < len(data); i += 2 {
var output = fomateinfo(len(data[i].(string))+3, data[i+1])
fmt.Fprintf(buf, "%s = %s", data[i], output)
}
if displayed {
log.Print(buf)
}
return buf.String()
}
// return data dump and format bytes
func fomateinfo(headlen int, data ...interface{}) []byte {
var buf = new(bytes.Buffer)
if len(data) > 1 {
fmt.Fprint(buf, " ")
fmt.Fprint(buf, "[")
fmt.Fprintln(buf)
}
for k, v := range data {
var buf2 = new(bytes.Buffer)
var pointers *pointerInfo
var interfaces = make([]reflect.Value, 0, 10)
printKeyValue(buf2, reflect.ValueOf(v), &pointers, &interfaces, nil, true, " ", 1)
if k < len(data)-1 {
fmt.Fprint(buf2, ", ")
}
fmt.Fprintln(buf2)
buf.Write(buf2.Bytes())
}
if len(data) > 1 {
fmt.Fprintln(buf)
fmt.Fprint(buf, " ")
fmt.Fprint(buf, "]")
}
return buf.Bytes()
}
// check data is golang basic type
func isSimpleType(val reflect.Value, kind reflect.Kind, pointers **pointerInfo, interfaces *[]reflect.Value) bool {
switch kind {
case reflect.Bool:
return true
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return true
case reflect.Uint8, reflect.Uint16, reflect.Uint, reflect.Uint32, reflect.Uint64:
return true
case reflect.Float32, reflect.Float64:
return true
case reflect.Complex64, reflect.Complex128:
return true
case reflect.String:
return true
case reflect.Chan:
return true
case reflect.Invalid:
return true
case reflect.Interface:
for _, in := range *interfaces {
if reflect.DeepEqual(in, val) {
return true
}
}
return false
case reflect.UnsafePointer:
if val.IsNil() {
return true
}
var elem = val.Elem()
if isSimpleType(elem, elem.Kind(), pointers, interfaces) {
return true
}
var addr = val.Elem().UnsafeAddr()
for p := *pointers; p != nil; p = p.prev {
if addr == p.addr {
return true
}
}
return false
}
return false
}
// dump value
func printKeyValue(buf *bytes.Buffer, val reflect.Value, pointers **pointerInfo, interfaces *[]reflect.Value, structFilter func(string, string) bool, formatOutput bool, indent string, level int) {
var t = val.Kind()
switch t {
case reflect.Bool:
fmt.Fprint(buf, val.Bool())
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
fmt.Fprint(buf, val.Int())
case reflect.Uint8, reflect.Uint16, reflect.Uint, reflect.Uint32, reflect.Uint64:
fmt.Fprint(buf, val.Uint())
case reflect.Float32, reflect.Float64:
fmt.Fprint(buf, val.Float())
case reflect.Complex64, reflect.Complex128:
fmt.Fprint(buf, val.Complex())
case reflect.UnsafePointer:
fmt.Fprintf(buf, "unsafe.Pointer(0x%X)", val.Pointer())
case reflect.Ptr:
if val.IsNil() {
fmt.Fprint(buf, "nil")
return
}
var addr = val.Elem().UnsafeAddr()
for p := *pointers; p != nil; p = p.prev {
if addr == p.addr {
p.used = append(p.used, buf.Len())
fmt.Fprintf(buf, "0x%X", addr)
return
}
}
*pointers = &pointerInfo{
prev: *pointers,
addr: addr,
pos: buf.Len(),
used: make([]int, 0),
}
fmt.Fprint(buf, "&")
printKeyValue(buf, val.Elem(), pointers, interfaces, structFilter, formatOutput, indent, level)
case reflect.String:
fmt.Fprint(buf, "\"", val.String(), "\"")
case reflect.Interface:
var value = val.Elem()
if !value.IsValid() {
fmt.Fprint(buf, "nil")
} else {
for _, in := range *interfaces {
if reflect.DeepEqual(in, val) {
fmt.Fprint(buf, "repeat")
return
}
}
*interfaces = append(*interfaces, val)
printKeyValue(buf, value, pointers, interfaces, structFilter, formatOutput, indent, level+1)
}
case reflect.Struct:
var t = val.Type()
fmt.Fprint(buf, t)
fmt.Fprint(buf, "{")
for i := 0; i < val.NumField(); i++ {
if formatOutput {
fmt.Fprintln(buf)
} else {
fmt.Fprint(buf, " ")
}
var name = t.Field(i).Name
if formatOutput {
for ind := 0; ind < level; ind++ {
fmt.Fprint(buf, indent)
}
}
fmt.Fprint(buf, name)
fmt.Fprint(buf, ": ")
if structFilter != nil && structFilter(t.String(), name) {
fmt.Fprint(buf, "ignore")
} else {
printKeyValue(buf, val.Field(i), pointers, interfaces, structFilter, formatOutput, indent, level+1)
}
fmt.Fprint(buf, ",")
}
if formatOutput {
fmt.Fprintln(buf)
for ind := 0; ind < level-1; ind++ {
fmt.Fprint(buf, indent)
}
} else {
fmt.Fprint(buf, " ")
}
fmt.Fprint(buf, "}")
case reflect.Array, reflect.Slice:
fmt.Fprint(buf, val.Type())
fmt.Fprint(buf, "{")
var allSimple = true
for i := 0; i < val.Len(); i++ {
var elem = val.Index(i)
var isSimple = isSimpleType(elem, elem.Kind(), pointers, interfaces)
if !isSimple {
allSimple = false
}
if formatOutput && !isSimple {
fmt.Fprintln(buf)
} else {
fmt.Fprint(buf, " ")
}
if formatOutput && !isSimple {
for ind := 0; ind < level; ind++ {
fmt.Fprint(buf, indent)
}
}
printKeyValue(buf, elem, pointers, interfaces, structFilter, formatOutput, indent, level+1)
if i != val.Len()-1 || !allSimple {
fmt.Fprint(buf, ",")
}
}
if formatOutput && !allSimple {
fmt.Fprintln(buf)
for ind := 0; ind < level-1; ind++ {
fmt.Fprint(buf, indent)
}
} else {
fmt.Fprint(buf, " ")
}
fmt.Fprint(buf, "}")
case reflect.Map:
var t = val.Type()
var keys = val.MapKeys()
fmt.Fprint(buf, t)
fmt.Fprint(buf, "{")
var allSimple = true
for i := 0; i < len(keys); i++ {
var elem = val.MapIndex(keys[i])
var isSimple = isSimpleType(elem, elem.Kind(), pointers, interfaces)
if !isSimple {
allSimple = false
}
if formatOutput && !isSimple {
fmt.Fprintln(buf)
} else {
fmt.Fprint(buf, " ")
}
if formatOutput && !isSimple {
for ind := 0; ind <= level; ind++ {
fmt.Fprint(buf, indent)
}
}
printKeyValue(buf, keys[i], pointers, interfaces, structFilter, formatOutput, indent, level+1)
fmt.Fprint(buf, ": ")
printKeyValue(buf, elem, pointers, interfaces, structFilter, formatOutput, indent, level+1)
if i != val.Len()-1 || !allSimple {
fmt.Fprint(buf, ",")
}
}
if formatOutput && !allSimple {
fmt.Fprintln(buf)
for ind := 0; ind < level-1; ind++ {
fmt.Fprint(buf, indent)
}
} else {
fmt.Fprint(buf, " ")
}
fmt.Fprint(buf, "}")
case reflect.Chan:
fmt.Fprint(buf, val.Type())
case reflect.Invalid:
fmt.Fprint(buf, "invalid")
default:
fmt.Fprint(buf, "unknow")
}
}
// PrintPointerInfo dump pointer value
func PrintPointerInfo(buf *bytes.Buffer, headlen int, pointers *pointerInfo) {
var anyused = false
var pointerNum = 0
for p := pointers; p != nil; p = p.prev {
if len(p.used) > 0 {
anyused = true
}
pointerNum++
p.n = pointerNum
}
if anyused {
var pointerBufs = make([][]rune, pointerNum+1)
for i := 0; i < len(pointerBufs); i++ {
var pointerBuf = make([]rune, buf.Len()+headlen)
for j := 0; j < len(pointerBuf); j++ {
pointerBuf[j] = ' '
}
pointerBufs[i] = pointerBuf
}
for pn := 0; pn <= pointerNum; pn++ {
for p := pointers; p != nil; p = p.prev {
if len(p.used) > 0 && p.n >= pn {
if pn == p.n {
pointerBufs[pn][p.pos+headlen] = '└'
var maxpos = 0
for i, pos := range p.used {
if i < len(p.used)-1 {
pointerBufs[pn][pos+headlen] = '┴'
} else {
pointerBufs[pn][pos+headlen] = '┘'
}
maxpos = pos
}
for i := 0; i < maxpos-p.pos-1; i++ {
if pointerBufs[pn][i+p.pos+headlen+1] == ' ' {
pointerBufs[pn][i+p.pos+headlen+1] = '─'
}
}
} else {
pointerBufs[pn][p.pos+headlen] = '│'
for _, pos := range p.used {
if pointerBufs[pn][pos+headlen] == ' ' {
pointerBufs[pn][pos+headlen] = '│'
} else {
pointerBufs[pn][pos+headlen] = '┼'
}
}
}
}
}
buf.WriteString(string(pointerBufs[pn]) + "\n")
}
}
}
// Stack get stack bytes
func Stack(skip int, indent string) []byte {
var buf = new(bytes.Buffer)
for i := skip; ; i++ {
var pc, file, line, ok = runtime.Caller(i)
if !ok {
break
}
buf.WriteString(indent)
fmt.Fprintf(buf, "at %s() [%s:%d]\n", function(pc), file, line)
}
return buf.Bytes()
}
// return the name of the function containing the PC if possible,
func function(pc uintptr) []byte {
fn := runtime.FuncForPC(pc)
if fn == nil {
return dunno
}
name := []byte(fn.Name())
// The name includes the path name to the package, which is unnecessary
// since the file name is already included. Plus, it has center dots.
// That is, we see
// runtime/debug.*T·ptrmethod
// and want
// *T.ptrmethod
if period := bytes.Index(name, dot); period >= 0 {
name = name[period+1:]
}
name = bytes.Replace(name, centerDot, dot, -1)
return name
}

101
vendor/github.com/astaxie/beego/utils/file.go generated vendored Normal file
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// Copyright 2014 beego Author. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package utils
import (
"bufio"
"errors"
"io"
"os"
"path/filepath"
"regexp"
)
// SelfPath gets compiled executable file absolute path
func SelfPath() string {
path, _ := filepath.Abs(os.Args[0])
return path
}
// SelfDir gets compiled executable file directory
func SelfDir() string {
return filepath.Dir(SelfPath())
}
// FileExists reports whether the named file or directory exists.
func FileExists(name string) bool {
if _, err := os.Stat(name); err != nil {
if os.IsNotExist(err) {
return false
}
}
return true
}
// SearchFile Search a file in paths.
// this is often used in search config file in /etc ~/
func SearchFile(filename string, paths ...string) (fullpath string, err error) {
for _, path := range paths {
if fullpath = filepath.Join(path, filename); FileExists(fullpath) {
return
}
}
err = errors.New(fullpath + " not found in paths")
return
}
// GrepFile like command grep -E
// for example: GrepFile(`^hello`, "hello.txt")
// \n is striped while read
func GrepFile(patten string, filename string) (lines []string, err error) {
re, err := regexp.Compile(patten)
if err != nil {
return
}
fd, err := os.Open(filename)
if err != nil {
return
}
lines = make([]string, 0)
reader := bufio.NewReader(fd)
prefix := ""
isLongLine := false
for {
byteLine, isPrefix, er := reader.ReadLine()
if er != nil && er != io.EOF {
return nil, er
}
if er == io.EOF {
break
}
line := string(byteLine)
if isPrefix {
prefix += line
continue
} else {
isLongLine = true
}
line = prefix + line
if isLongLine {
prefix = ""
}
if re.MatchString(line) {
lines = append(lines, line)
}
}
return lines, nil
}

423
vendor/github.com/astaxie/beego/utils/mail.go generated vendored Normal file
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// Copyright 2014 beego Author. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package utils
import (
"bytes"
"encoding/base64"
"encoding/json"
"errors"
"fmt"
"io"
"mime"
"mime/multipart"
"net/mail"
"net/smtp"
"net/textproto"
"os"
"path"
"path/filepath"
"strconv"
"strings"
"sync"
)
const (
maxLineLength = 76
upperhex = "0123456789ABCDEF"
)
// Email is the type used for email messages
type Email struct {
Auth smtp.Auth
Identity string `json:"identity"`
Username string `json:"username"`
Password string `json:"password"`
Host string `json:"host"`
Port int `json:"port"`
From string `json:"from"`
To []string
Bcc []string
Cc []string
Subject string
Text string // Plaintext message (optional)
HTML string // Html message (optional)
Headers textproto.MIMEHeader
Attachments []*Attachment
ReadReceipt []string
}
// Attachment is a struct representing an email attachment.
// Based on the mime/multipart.FileHeader struct, Attachment contains the name, MIMEHeader, and content of the attachment in question
type Attachment struct {
Filename string
Header textproto.MIMEHeader
Content []byte
}
// NewEMail create new Email struct with config json.
// config json is followed from Email struct fields.
func NewEMail(config string) *Email {
e := new(Email)
e.Headers = textproto.MIMEHeader{}
err := json.Unmarshal([]byte(config), e)
if err != nil {
return nil
}
return e
}
// Bytes Make all send information to byte
func (e *Email) Bytes() ([]byte, error) {
buff := &bytes.Buffer{}
w := multipart.NewWriter(buff)
// Set the appropriate headers (overwriting any conflicts)
// Leave out Bcc (only included in envelope headers)
e.Headers.Set("To", strings.Join(e.To, ","))
if e.Cc != nil {
e.Headers.Set("Cc", strings.Join(e.Cc, ","))
}
e.Headers.Set("From", e.From)
e.Headers.Set("Subject", e.Subject)
if len(e.ReadReceipt) != 0 {
e.Headers.Set("Disposition-Notification-To", strings.Join(e.ReadReceipt, ","))
}
e.Headers.Set("MIME-Version", "1.0")
// Write the envelope headers (including any custom headers)
if err := headerToBytes(buff, e.Headers); err != nil {
return nil, fmt.Errorf("Failed to render message headers: %s", err)
}
e.Headers.Set("Content-Type", fmt.Sprintf("multipart/mixed;\r\n boundary=%s\r\n", w.Boundary()))
fmt.Fprintf(buff, "%s:", "Content-Type")
fmt.Fprintf(buff, " %s\r\n", fmt.Sprintf("multipart/mixed;\r\n boundary=%s\r\n", w.Boundary()))
// Start the multipart/mixed part
fmt.Fprintf(buff, "--%s\r\n", w.Boundary())
header := textproto.MIMEHeader{}
// Check to see if there is a Text or HTML field
if e.Text != "" || e.HTML != "" {
subWriter := multipart.NewWriter(buff)
// Create the multipart alternative part
header.Set("Content-Type", fmt.Sprintf("multipart/alternative;\r\n boundary=%s\r\n", subWriter.Boundary()))
// Write the header
if err := headerToBytes(buff, header); err != nil {
return nil, fmt.Errorf("Failed to render multipart message headers: %s", err)
}
// Create the body sections
if e.Text != "" {
header.Set("Content-Type", fmt.Sprintf("text/plain; charset=UTF-8"))
header.Set("Content-Transfer-Encoding", "quoted-printable")
if _, err := subWriter.CreatePart(header); err != nil {
return nil, err
}
// Write the text
if err := quotePrintEncode(buff, e.Text); err != nil {
return nil, err
}
}
if e.HTML != "" {
header.Set("Content-Type", fmt.Sprintf("text/html; charset=UTF-8"))
header.Set("Content-Transfer-Encoding", "quoted-printable")
if _, err := subWriter.CreatePart(header); err != nil {
return nil, err
}
// Write the text
if err := quotePrintEncode(buff, e.HTML); err != nil {
return nil, err
}
}
if err := subWriter.Close(); err != nil {
return nil, err
}
}
// Create attachment part, if necessary
for _, a := range e.Attachments {
ap, err := w.CreatePart(a.Header)
if err != nil {
return nil, err
}
// Write the base64Wrapped content to the part
base64Wrap(ap, a.Content)
}
if err := w.Close(); err != nil {
return nil, err
}
return buff.Bytes(), nil
}
// AttachFile Add attach file to the send mail
func (e *Email) AttachFile(args ...string) (a *Attachment, err error) {
if len(args) < 1 && len(args) > 2 {
err = errors.New("Must specify a file name and number of parameters can not exceed at least two")
return
}
filename := args[0]
id := ""
if len(args) > 1 {
id = args[1]
}
f, err := os.Open(filename)
if err != nil {
return
}
ct := mime.TypeByExtension(filepath.Ext(filename))
basename := path.Base(filename)
return e.Attach(f, basename, ct, id)
}
// Attach is used to attach content from an io.Reader to the email.
// Parameters include an io.Reader, the desired filename for the attachment, and the Content-Type.
func (e *Email) Attach(r io.Reader, filename string, args ...string) (a *Attachment, err error) {
if len(args) < 1 && len(args) > 2 {
err = errors.New("Must specify the file type and number of parameters can not exceed at least two")
return
}
c := args[0] //Content-Type
id := ""
if len(args) > 1 {
id = args[1] //Content-ID
}
var buffer bytes.Buffer
if _, err = io.Copy(&buffer, r); err != nil {
return
}
at := &Attachment{
Filename: filename,
Header: textproto.MIMEHeader{},
Content: buffer.Bytes(),
}
// Get the Content-Type to be used in the MIMEHeader
if c != "" {
at.Header.Set("Content-Type", c)
} else {
// If the Content-Type is blank, set the Content-Type to "application/octet-stream"
at.Header.Set("Content-Type", "application/octet-stream")
}
if id != "" {
at.Header.Set("Content-Disposition", fmt.Sprintf("inline;\r\n filename=\"%s\"", filename))
at.Header.Set("Content-ID", fmt.Sprintf("<%s>", id))
} else {
at.Header.Set("Content-Disposition", fmt.Sprintf("attachment;\r\n filename=\"%s\"", filename))
}
at.Header.Set("Content-Transfer-Encoding", "base64")
e.Attachments = append(e.Attachments, at)
return at, nil
}
// Send will send out the mail
func (e *Email) Send() error {
if e.Auth == nil {
e.Auth = smtp.PlainAuth(e.Identity, e.Username, e.Password, e.Host)
}
// Merge the To, Cc, and Bcc fields
to := make([]string, 0, len(e.To)+len(e.Cc)+len(e.Bcc))
to = append(append(append(to, e.To...), e.Cc...), e.Bcc...)
// Check to make sure there is at least one recipient and one "From" address
if len(to) == 0 {
return errors.New("Must specify at least one To address")
}
// Use the username if no From is provided
if len(e.From) == 0 {
e.From = e.Username
}
from, err := mail.ParseAddress(e.From)
if err != nil {
return err
}
// use mail's RFC 2047 to encode any string
e.Subject = qEncode("utf-8", e.Subject)
raw, err := e.Bytes()
if err != nil {
return err
}
return smtp.SendMail(e.Host+":"+strconv.Itoa(e.Port), e.Auth, from.Address, to, raw)
}
// quotePrintEncode writes the quoted-printable text to the IO Writer (according to RFC 2045)
func quotePrintEncode(w io.Writer, s string) error {
var buf [3]byte
mc := 0
for i := 0; i < len(s); i++ {
c := s[i]
// We're assuming Unix style text formats as input (LF line break), and
// quoted-printble uses CRLF line breaks. (Literal CRs will become
// "=0D", but probably shouldn't be there to begin with!)
if c == '\n' {
io.WriteString(w, "\r\n")
mc = 0
continue
}
var nextOut []byte
if isPrintable(c) {
nextOut = append(buf[:0], c)
} else {
nextOut = buf[:]
qpEscape(nextOut, c)
}
// Add a soft line break if the next (encoded) byte would push this line
// to or past the limit.
if mc+len(nextOut) >= maxLineLength {
if _, err := io.WriteString(w, "=\r\n"); err != nil {
return err
}
mc = 0
}
if _, err := w.Write(nextOut); err != nil {
return err
}
mc += len(nextOut)
}
// No trailing end-of-line?? Soft line break, then. TODO: is this sane?
if mc > 0 {
io.WriteString(w, "=\r\n")
}
return nil
}
// isPrintable returns true if the rune given is "printable" according to RFC 2045, false otherwise
func isPrintable(c byte) bool {
return (c >= '!' && c <= '<') || (c >= '>' && c <= '~') || (c == ' ' || c == '\n' || c == '\t')
}
// qpEscape is a helper function for quotePrintEncode which escapes a
// non-printable byte. Expects len(dest) == 3.
func qpEscape(dest []byte, c byte) {
const nums = "0123456789ABCDEF"
dest[0] = '='
dest[1] = nums[(c&0xf0)>>4]
dest[2] = nums[(c & 0xf)]
}
// headerToBytes enumerates the key and values in the header, and writes the results to the IO Writer
func headerToBytes(w io.Writer, t textproto.MIMEHeader) error {
for k, v := range t {
// Write the header key
_, err := fmt.Fprintf(w, "%s:", k)
if err != nil {
return err
}
// Write each value in the header
for _, c := range v {
_, err := fmt.Fprintf(w, " %s\r\n", c)
if err != nil {
return err
}
}
}
return nil
}
// base64Wrap encodes the attachment content, and wraps it according to RFC 2045 standards (every 76 chars)
// The output is then written to the specified io.Writer
func base64Wrap(w io.Writer, b []byte) {
// 57 raw bytes per 76-byte base64 line.
const maxRaw = 57
// Buffer for each line, including trailing CRLF.
var buffer [maxLineLength + len("\r\n")]byte
copy(buffer[maxLineLength:], "\r\n")
// Process raw chunks until there's no longer enough to fill a line.
for len(b) >= maxRaw {
base64.StdEncoding.Encode(buffer[:], b[:maxRaw])
w.Write(buffer[:])
b = b[maxRaw:]
}
// Handle the last chunk of bytes.
if len(b) > 0 {
out := buffer[:base64.StdEncoding.EncodedLen(len(b))]
base64.StdEncoding.Encode(out, b)
out = append(out, "\r\n"...)
w.Write(out)
}
}
// Encode returns the encoded-word form of s. If s is ASCII without special
// characters, it is returned unchanged. The provided charset is the IANA
// charset name of s. It is case insensitive.
// RFC 2047 encoded-word
func qEncode(charset, s string) string {
if !needsEncoding(s) {
return s
}
return encodeWord(charset, s)
}
func needsEncoding(s string) bool {
for _, b := range s {
if (b < ' ' || b > '~') && b != '\t' {
return true
}
}
return false
}
// encodeWord encodes a string into an encoded-word.
func encodeWord(charset, s string) string {
buf := getBuffer()
buf.WriteString("=?")
buf.WriteString(charset)
buf.WriteByte('?')
buf.WriteByte('q')
buf.WriteByte('?')
enc := make([]byte, 3)
for i := 0; i < len(s); i++ {
b := s[i]
switch {
case b == ' ':
buf.WriteByte('_')
case b <= '~' && b >= '!' && b != '=' && b != '?' && b != '_':
buf.WriteByte(b)
default:
enc[0] = '='
enc[1] = upperhex[b>>4]
enc[2] = upperhex[b&0x0f]
buf.Write(enc)
}
}
buf.WriteString("?=")
es := buf.String()
putBuffer(buf)
return es
}
var bufPool = sync.Pool{
New: func() interface{} {
return new(bytes.Buffer)
},
}
func getBuffer() *bytes.Buffer {
return bufPool.Get().(*bytes.Buffer)
}
func putBuffer(buf *bytes.Buffer) {
if buf.Len() > 1024 {
return
}
buf.Reset()
bufPool.Put(buf)
}

44
vendor/github.com/astaxie/beego/utils/rand.go generated vendored Normal file
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// Copyright 2014 beego Author. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package utils
import (
"crypto/rand"
r "math/rand"
"time"
)
var alphaNum = []byte(`0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz`)
// RandomCreateBytes generate random []byte by specify chars.
func RandomCreateBytes(n int, alphabets ...byte) []byte {
if len(alphabets) == 0 {
alphabets = alphaNum
}
var bytes = make([]byte, n)
var randBy bool
if num, err := rand.Read(bytes); num != n || err != nil {
r.Seed(time.Now().UnixNano())
randBy = true
}
for i, b := range bytes {
if randBy {
bytes[i] = alphabets[r.Intn(len(alphabets))]
} else {
bytes[i] = alphabets[b%byte(len(alphabets))]
}
}
return bytes
}

86
vendor/github.com/astaxie/beego/utils/safemap.go generated vendored Normal file
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// Copyright 2014 beego Author. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package utils
import (
"sync"
)
// BeeMap is a map with lock
type BeeMap struct {
lock *sync.RWMutex
bm map[interface{}]interface{}
}
// NewBeeMap return new safemap
func NewBeeMap() *BeeMap {
return &BeeMap{
lock: new(sync.RWMutex),
bm: make(map[interface{}]interface{}),
}
}
// Get from maps return the k's value
func (m *BeeMap) Get(k interface{}) interface{} {
m.lock.RLock()
defer m.lock.RUnlock()
if val, ok := m.bm[k]; ok {
return val
}
return nil
}
// Set Maps the given key and value. Returns false
// if the key is already in the map and changes nothing.
func (m *BeeMap) Set(k interface{}, v interface{}) bool {
m.lock.Lock()
defer m.lock.Unlock()
if val, ok := m.bm[k]; !ok {
m.bm[k] = v
} else if val != v {
m.bm[k] = v
} else {
return false
}
return true
}
// Check Returns true if k is exist in the map.
func (m *BeeMap) Check(k interface{}) bool {
m.lock.RLock()
defer m.lock.RUnlock()
if _, ok := m.bm[k]; !ok {
return false
}
return true
}
// Delete the given key and value.
func (m *BeeMap) Delete(k interface{}) {
m.lock.Lock()
defer m.lock.Unlock()
delete(m.bm, k)
}
// Items returns all items in safemap.
func (m *BeeMap) Items() map[interface{}]interface{} {
m.lock.RLock()
defer m.lock.RUnlock()
r := make(map[interface{}]interface{})
for k, v := range m.bm {
r[k] = v
}
return r
}

170
vendor/github.com/astaxie/beego/utils/slice.go generated vendored Normal file
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// Copyright 2014 beego Author. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package utils
import (
"math/rand"
"time"
)
type reducetype func(interface{}) interface{}
type filtertype func(interface{}) bool
// InSlice checks given string in string slice or not.
func InSlice(v string, sl []string) bool {
for _, vv := range sl {
if vv == v {
return true
}
}
return false
}
// InSliceIface checks given interface in interface slice.
func InSliceIface(v interface{}, sl []interface{}) bool {
for _, vv := range sl {
if vv == v {
return true
}
}
return false
}
// SliceRandList generate an int slice from min to max.
func SliceRandList(min, max int) []int {
if max < min {
min, max = max, min
}
length := max - min + 1
t0 := time.Now()
rand.Seed(int64(t0.Nanosecond()))
list := rand.Perm(length)
for index := range list {
list[index] += min
}
return list
}
// SliceMerge merges interface slices to one slice.
func SliceMerge(slice1, slice2 []interface{}) (c []interface{}) {
c = append(slice1, slice2...)
return
}
// SliceReduce generates a new slice after parsing every value by reduce function
func SliceReduce(slice []interface{}, a reducetype) (dslice []interface{}) {
for _, v := range slice {
dslice = append(dslice, a(v))
}
return
}
// SliceRand returns random one from slice.
func SliceRand(a []interface{}) (b interface{}) {
randnum := rand.Intn(len(a))
b = a[randnum]
return
}
// SliceSum sums all values in int64 slice.
func SliceSum(intslice []int64) (sum int64) {
for _, v := range intslice {
sum += v
}
return
}
// SliceFilter generates a new slice after filter function.
func SliceFilter(slice []interface{}, a filtertype) (ftslice []interface{}) {
for _, v := range slice {
if a(v) {
ftslice = append(ftslice, v)
}
}
return
}
// SliceDiff returns diff slice of slice1 - slice2.
func SliceDiff(slice1, slice2 []interface{}) (diffslice []interface{}) {
for _, v := range slice1 {
if !InSliceIface(v, slice2) {
diffslice = append(diffslice, v)
}
}
return
}
// SliceIntersect returns slice that are present in all the slice1 and slice2.
func SliceIntersect(slice1, slice2 []interface{}) (diffslice []interface{}) {
for _, v := range slice1 {
if InSliceIface(v, slice2) {
diffslice = append(diffslice, v)
}
}
return
}
// SliceChunk separates one slice to some sized slice.
func SliceChunk(slice []interface{}, size int) (chunkslice [][]interface{}) {
if size >= len(slice) {
chunkslice = append(chunkslice, slice)
return
}
end := size
for i := 0; i <= (len(slice) - size); i += size {
chunkslice = append(chunkslice, slice[i:end])
end += size
}
return
}
// SliceRange generates a new slice from begin to end with step duration of int64 number.
func SliceRange(start, end, step int64) (intslice []int64) {
for i := start; i <= end; i += step {
intslice = append(intslice, i)
}
return
}
// SlicePad prepends size number of val into slice.
func SlicePad(slice []interface{}, size int, val interface{}) []interface{} {
if size <= len(slice) {
return slice
}
for i := 0; i < (size - len(slice)); i++ {
slice = append(slice, val)
}
return slice
}
// SliceUnique cleans repeated values in slice.
func SliceUnique(slice []interface{}) (uniqueslice []interface{}) {
for _, v := range slice {
if !InSliceIface(v, uniqueslice) {
uniqueslice = append(uniqueslice, v)
}
}
return
}
// SliceShuffle shuffles a slice.
func SliceShuffle(slice []interface{}) []interface{} {
for i := 0; i < len(slice); i++ {
a := rand.Intn(len(slice))
b := rand.Intn(len(slice))
slice[a], slice[b] = slice[b], slice[a]
}
return slice
}

48
vendor/github.com/go-sql-driver/mysql/AUTHORS generated vendored Normal file
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# This is the official list of Go-MySQL-Driver authors for copyright purposes.
# If you are submitting a patch, please add your name or the name of the
# organization which holds the copyright to this list in alphabetical order.
# Names should be added to this file as
# Name <email address>
# The email address is not required for organizations.
# Please keep the list sorted.
# Individual Persons
Aaron Hopkins <go-sql-driver at die.net>
Arne Hormann <arnehormann at gmail.com>
Carlos Nieto <jose.carlos at menteslibres.net>
Chris Moos <chris at tech9computers.com>
Daniel Nichter <nil at codenode.com>
DisposaBoy <disposaboy at dby.me>
Frederick Mayle <frederickmayle at gmail.com>
Gustavo Kristic <gkristic at gmail.com>
Hanno Braun <mail at hannobraun.com>
Henri Yandell <flamefew at gmail.com>
Hirotaka Yamamoto <ymmt2005 at gmail.com>
INADA Naoki <songofacandy at gmail.com>
James Harr <james.harr at gmail.com>
Jian Zhen <zhenjl at gmail.com>
Joshua Prunier <joshua.prunier at gmail.com>
Julien Lefevre <julien.lefevr at gmail.com>
Julien Schmidt <go-sql-driver at julienschmidt.com>
Kamil Dziedzic <kamil at klecza.pl>
Kevin Malachowski <kevin at chowski.com>
Leonardo YongUk Kim <dalinaum at gmail.com>
Lucas Liu <extrafliu at gmail.com>
Luke Scott <luke at webconnex.com>
Michael Woolnough <michael.woolnough at gmail.com>
Nicola Peduzzi <thenikso at gmail.com>
Runrioter Wung <runrioter at gmail.com>
Soroush Pour <me at soroushjp.com>
Stan Putrya <root.vagner at gmail.com>
Xiaobing Jiang <s7v7nislands at gmail.com>
Xiuming Chen <cc at cxm.cc>
# Organizations
Barracuda Networks, Inc.
Google Inc.
Stripe Inc.

103
vendor/github.com/go-sql-driver/mysql/CHANGELOG.md generated vendored Normal file
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## HEAD
Changes:
- Go 1.1 is no longer supported
- Use decimals field from MySQL to format time types (#249)
- Buffer optimizations (#269)
- TLS ServerName defaults to the host (#283)
Bugfixes:
- Enable microsecond resolution on TIME, DATETIME and TIMESTAMP (#249)
- Fixed handling of queries without columns and rows (#255)
- Fixed a panic when SetKeepAlive() failed (#298)
- Support receiving ERR packet while reading rows (#321)
- Fixed reading NULL length-encoded integers in MySQL 5.6+ (#349)
- Fixed absolute paths support in LOAD LOCAL DATA INFILE (#356)
- Actually zero out bytes in handshake response (#378)
- Fixed race condition in registering LOAD DATA INFILE handler (#383)
- Fixed tests with MySQL 5.7.9+ (#380)
- QueryUnescape TLS config names (#397)
- Fixed "broken pipe" error by writing to closed socket (#390)
New Features:
- Support for returning table alias on Columns() (#289, #359, #382)
- Placeholder interpolation, can be actived with the DSN parameter `interpolateParams=true` (#309, #318)
- Support for uint64 parameters with high bit set (#332, #345)
- Cleartext authentication plugin support (#327)
## Version 1.2 (2014-06-03)
Changes:
- We switched back to a "rolling release". `go get` installs the current master branch again
- Version v1 of the driver will not be maintained anymore. Go 1.0 is no longer supported by this driver
- Exported errors to allow easy checking from application code
- Enabled TCP Keepalives on TCP connections
- Optimized INFILE handling (better buffer size calculation, lazy init, ...)
- The DSN parser also checks for a missing separating slash
- Faster binary date / datetime to string formatting
- Also exported the MySQLWarning type
- mysqlConn.Close returns the first error encountered instead of ignoring all errors
- writePacket() automatically writes the packet size to the header
- readPacket() uses an iterative approach instead of the recursive approach to merge splitted packets
New Features:
- `RegisterDial` allows the usage of a custom dial function to establish the network connection
- Setting the connection collation is possible with the `collation` DSN parameter. This parameter should be preferred over the `charset` parameter
- Logging of critical errors is configurable with `SetLogger`
- Google CloudSQL support
Bugfixes:
- Allow more than 32 parameters in prepared statements
- Various old_password fixes
- Fixed TestConcurrent test to pass Go's race detection
- Fixed appendLengthEncodedInteger for large numbers
- Renamed readLengthEnodedString to readLengthEncodedString and skipLengthEnodedString to skipLengthEncodedString (fixed typo)
## Version 1.1 (2013-11-02)
Changes:
- Go-MySQL-Driver now requires Go 1.1
- Connections now use the collation `utf8_general_ci` by default. Adding `&charset=UTF8` to the DSN should not be necessary anymore
- Made closing rows and connections error tolerant. This allows for example deferring rows.Close() without checking for errors
- `[]byte(nil)` is now treated as a NULL value. Before, it was treated like an empty string / `[]byte("")`
- DSN parameter values must now be url.QueryEscape'ed. This allows text values to contain special characters, such as '&'.
- Use the IO buffer also for writing. This results in zero allocations (by the driver) for most queries
- Optimized the buffer for reading
- stmt.Query now caches column metadata
- New Logo
- Changed the copyright header to include all contributors
- Improved the LOAD INFILE documentation
- The driver struct is now exported to make the driver directly accessible
- Refactored the driver tests
- Added more benchmarks and moved all to a separate file
- Other small refactoring
New Features:
- Added *old_passwords* support: Required in some cases, but must be enabled by adding `allowOldPasswords=true` to the DSN since it is insecure
- Added a `clientFoundRows` parameter: Return the number of matching rows instead of the number of rows changed on UPDATEs
- Added TLS/SSL support: Use a TLS/SSL encrypted connection to the server. Custom TLS configs can be registered and used
Bugfixes:
- Fixed MySQL 4.1 support: MySQL 4.1 sends packets with lengths which differ from the specification
- Convert to DB timezone when inserting `time.Time`
- Splitted packets (more than 16MB) are now merged correctly
- Fixed false positive `io.EOF` errors when the data was fully read
- Avoid panics on reuse of closed connections
- Fixed empty string producing false nil values
- Fixed sign byte for positive TIME fields
## Version 1.0 (2013-05-14)
Initial Release

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# Contributing Guidelines
## Reporting Issues
Before creating a new Issue, please check first if a similar Issue [already exists](https://github.com/go-sql-driver/mysql/issues?state=open) or was [recently closed](https://github.com/go-sql-driver/mysql/issues?direction=desc&page=1&sort=updated&state=closed).
Please provide the following minimum information:
* Your Go-MySQL-Driver version (or git SHA)
* Your Go version (run `go version` in your console)
* A detailed issue description
* Error Log if present
* If possible, a short example
## Contributing Code
By contributing to this project, you share your code under the Mozilla Public License 2, as specified in the LICENSE file.
Don't forget to add yourself to the AUTHORS file.
### Pull Requests Checklist
Please check the following points before submitting your pull request:
- [x] Code compiles correctly
- [x] Created tests, if possible
- [x] All tests pass
- [x] Extended the README / documentation, if necessary
- [x] Added yourself to the AUTHORS file
### Code Review
Everyone is invited to review and comment on pull requests.
If it looks fine to you, comment with "LGTM" (Looks good to me).
If changes are required, notice the reviewers with "PTAL" (Please take another look) after committing the fixes.
Before merging the Pull Request, at least one [team member](https://github.com/go-sql-driver?tab=members) must have commented with "LGTM".
## Development Ideas
If you are looking for ideas for code contributions, please check our [Development Ideas](https://github.com/go-sql-driver/mysql/wiki/Development-Ideas) Wiki page.

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Mozilla Public License Version 2.0
==================================
1. Definitions
--------------
1.1. "Contributor"
means each individual or legal entity that creates, contributes to
the creation of, or owns Covered Software.
1.2. "Contributor Version"
means the combination of the Contributions of others (if any) used
by a Contributor and that particular Contributor's Contribution.
1.3. "Contribution"
means Covered Software of a particular Contributor.
1.4. "Covered Software"
means Source Code Form to which the initial Contributor has attached
the notice in Exhibit A, the Executable Form of such Source Code
Form, and Modifications of such Source Code Form, in each case
including portions thereof.
1.5. "Incompatible With Secondary Licenses"
means
(a) that the initial Contributor has attached the notice described
in Exhibit B to the Covered Software; or
(b) that the Covered Software was made available under the terms of
version 1.1 or earlier of the License, but not also under the
terms of a Secondary License.
1.6. "Executable Form"
means any form of the work other than Source Code Form.
1.7. "Larger Work"
means a work that combines Covered Software with other material, in
a separate file or files, that is not Covered Software.
1.8. "License"
means this document.
1.9. "Licensable"
means having the right to grant, to the maximum extent possible,
whether at the time of the initial grant or subsequently, any and
all of the rights conveyed by this License.
1.10. "Modifications"
means any of the following:
(a) any file in Source Code Form that results from an addition to,
deletion from, or modification of the contents of Covered
Software; or
(b) any new file in Source Code Form that contains any Covered
Software.
1.11. "Patent Claims" of a Contributor
means any patent claim(s), including without limitation, method,
process, and apparatus claims, in any patent Licensable by such
Contributor that would be infringed, but for the grant of the
License, by the making, using, selling, offering for sale, having
made, import, or transfer of either its Contributions or its
Contributor Version.
1.12. "Secondary License"
means either the GNU General Public License, Version 2.0, the GNU
Lesser General Public License, Version 2.1, the GNU Affero General
Public License, Version 3.0, or any later versions of those
licenses.
1.13. "Source Code Form"
means the form of the work preferred for making modifications.
1.14. "You" (or "Your")
means an individual or a legal entity exercising rights under this
License. For legal entities, "You" includes any entity that
controls, is controlled by, or is under common control with You. For
purposes of this definition, "control" means (a) the power, direct
or indirect, to cause the direction or management of such entity,
whether by contract or otherwise, or (b) ownership of more than
fifty percent (50%) of the outstanding shares or beneficial
ownership of such entity.
2. License Grants and Conditions
--------------------------------
2.1. Grants
Each Contributor hereby grants You a world-wide, royalty-free,
non-exclusive license:
(a) under intellectual property rights (other than patent or trademark)
Licensable by such Contributor to use, reproduce, make available,
modify, display, perform, distribute, and otherwise exploit its
Contributions, either on an unmodified basis, with Modifications, or
as part of a Larger Work; and
(b) under Patent Claims of such Contributor to make, use, sell, offer
for sale, have made, import, and otherwise transfer either its
Contributions or its Contributor Version.
2.2. Effective Date
The licenses granted in Section 2.1 with respect to any Contribution
become effective for each Contribution on the date the Contributor first
distributes such Contribution.
2.3. Limitations on Grant Scope
The licenses granted in this Section 2 are the only rights granted under
this License. No additional rights or licenses will be implied from the
distribution or licensing of Covered Software under this License.
Notwithstanding Section 2.1(b) above, no patent license is granted by a
Contributor:
(a) for any code that a Contributor has removed from Covered Software;
or
(b) for infringements caused by: (i) Your and any other third party's
modifications of Covered Software, or (ii) the combination of its
Contributions with other software (except as part of its Contributor
Version); or
(c) under Patent Claims infringed by Covered Software in the absence of
its Contributions.
This License does not grant any rights in the trademarks, service marks,
or logos of any Contributor (except as may be necessary to comply with
the notice requirements in Section 3.4).
2.4. Subsequent Licenses
No Contributor makes additional grants as a result of Your choice to
distribute the Covered Software under a subsequent version of this
License (see Section 10.2) or under the terms of a Secondary License (if
permitted under the terms of Section 3.3).
2.5. Representation
Each Contributor represents that the Contributor believes its
Contributions are its original creation(s) or it has sufficient rights
to grant the rights to its Contributions conveyed by this License.
2.6. Fair Use
This License is not intended to limit any rights You have under
applicable copyright doctrines of fair use, fair dealing, or other
equivalents.
2.7. Conditions
Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
in Section 2.1.
3. Responsibilities
-------------------
3.1. Distribution of Source Form
All distribution of Covered Software in Source Code Form, including any
Modifications that You create or to which You contribute, must be under
the terms of this License. You must inform recipients that the Source
Code Form of the Covered Software is governed by the terms of this
License, and how they can obtain a copy of this License. You may not
attempt to alter or restrict the recipients' rights in the Source Code
Form.
3.2. Distribution of Executable Form
If You distribute Covered Software in Executable Form then:
(a) such Covered Software must also be made available in Source Code
Form, as described in Section 3.1, and You must inform recipients of
the Executable Form how they can obtain a copy of such Source Code
Form by reasonable means in a timely manner, at a charge no more
than the cost of distribution to the recipient; and
(b) You may distribute such Executable Form under the terms of this
License, or sublicense it under different terms, provided that the
license for the Executable Form does not attempt to limit or alter
the recipients' rights in the Source Code Form under this License.
3.3. Distribution of a Larger Work
You may create and distribute a Larger Work under terms of Your choice,
provided that You also comply with the requirements of this License for
the Covered Software. If the Larger Work is a combination of Covered
Software with a work governed by one or more Secondary Licenses, and the
Covered Software is not Incompatible With Secondary Licenses, this
License permits You to additionally distribute such Covered Software
under the terms of such Secondary License(s), so that the recipient of
the Larger Work may, at their option, further distribute the Covered
Software under the terms of either this License or such Secondary
License(s).
3.4. Notices
You may not remove or alter the substance of any license notices
(including copyright notices, patent notices, disclaimers of warranty,
or limitations of liability) contained within the Source Code Form of
the Covered Software, except that You may alter any license notices to
the extent required to remedy known factual inaccuracies.
3.5. Application of Additional Terms
You may choose to offer, and to charge a fee for, warranty, support,
indemnity or liability obligations to one or more recipients of Covered
Software. However, You may do so only on Your own behalf, and not on
behalf of any Contributor. You must make it absolutely clear that any
such warranty, support, indemnity, or liability obligation is offered by
You alone, and You hereby agree to indemnify every Contributor for any
liability incurred by such Contributor as a result of warranty, support,
indemnity or liability terms You offer. You may include additional
disclaimers of warranty and limitations of liability specific to any
jurisdiction.
4. Inability to Comply Due to Statute or Regulation
---------------------------------------------------
If it is impossible for You to comply with any of the terms of this
License with respect to some or all of the Covered Software due to
statute, judicial order, or regulation then You must: (a) comply with
the terms of this License to the maximum extent possible; and (b)
describe the limitations and the code they affect. Such description must
be placed in a text file included with all distributions of the Covered
Software under this License. Except to the extent prohibited by statute
or regulation, such description must be sufficiently detailed for a
recipient of ordinary skill to be able to understand it.
5. Termination
--------------
5.1. The rights granted under this License will terminate automatically
if You fail to comply with any of its terms. However, if You become
compliant, then the rights granted under this License from a particular
Contributor are reinstated (a) provisionally, unless and until such
Contributor explicitly and finally terminates Your grants, and (b) on an
ongoing basis, if such Contributor fails to notify You of the
non-compliance by some reasonable means prior to 60 days after You have
come back into compliance. Moreover, Your grants from a particular
Contributor are reinstated on an ongoing basis if such Contributor
notifies You of the non-compliance by some reasonable means, this is the
first time You have received notice of non-compliance with this License
from such Contributor, and You become compliant prior to 30 days after
Your receipt of the notice.
5.2. If You initiate litigation against any entity by asserting a patent
infringement claim (excluding declaratory judgment actions,
counter-claims, and cross-claims) alleging that a Contributor Version
directly or indirectly infringes any patent, then the rights granted to
You by any and all Contributors for the Covered Software under Section
2.1 of this License shall terminate.
5.3. In the event of termination under Sections 5.1 or 5.2 above, all
end user license agreements (excluding distributors and resellers) which
have been validly granted by You or Your distributors under this License
prior to termination shall survive termination.
************************************************************************
* *
* 6. Disclaimer of Warranty *
* ------------------------- *
* *
* Covered Software is provided under this License on an "as is" *
* basis, without warranty of any kind, either expressed, implied, or *
* statutory, including, without limitation, warranties that the *
* Covered Software is free of defects, merchantable, fit for a *
* particular purpose or non-infringing. The entire risk as to the *
* quality and performance of the Covered Software is with You. *
* Should any Covered Software prove defective in any respect, You *
* (not any Contributor) assume the cost of any necessary servicing, *
* repair, or correction. This disclaimer of warranty constitutes an *
* essential part of this License. No use of any Covered Software is *
* authorized under this License except under this disclaimer. *
* *
************************************************************************
************************************************************************
* *
* 7. Limitation of Liability *
* -------------------------- *
* *
* Under no circumstances and under no legal theory, whether tort *
* (including negligence), contract, or otherwise, shall any *
* Contributor, or anyone who distributes Covered Software as *
* permitted above, be liable to You for any direct, indirect, *
* special, incidental, or consequential damages of any character *
* including, without limitation, damages for lost profits, loss of *
* goodwill, work stoppage, computer failure or malfunction, or any *
* and all other commercial damages or losses, even if such party *
* shall have been informed of the possibility of such damages. This *
* limitation of liability shall not apply to liability for death or *
* personal injury resulting from such party's negligence to the *
* extent applicable law prohibits such limitation. Some *
* jurisdictions do not allow the exclusion or limitation of *
* incidental or consequential damages, so this exclusion and *
* limitation may not apply to You. *
* *
************************************************************************
8. Litigation
-------------
Any litigation relating to this License may be brought only in the
courts of a jurisdiction where the defendant maintains its principal
place of business and such litigation shall be governed by laws of that
jurisdiction, without reference to its conflict-of-law provisions.
Nothing in this Section shall prevent a party's ability to bring
cross-claims or counter-claims.
9. Miscellaneous
----------------
This License represents the complete agreement concerning the subject
matter hereof. If any provision of this License is held to be
unenforceable, such provision shall be reformed only to the extent
necessary to make it enforceable. Any law or regulation which provides
that the language of a contract shall be construed against the drafter
shall not be used to construe this License against a Contributor.
10. Versions of the License
---------------------------
10.1. New Versions
Mozilla Foundation is the license steward. Except as provided in Section
10.3, no one other than the license steward has the right to modify or
publish new versions of this License. Each version will be given a
distinguishing version number.
10.2. Effect of New Versions
You may distribute the Covered Software under the terms of the version
of the License under which You originally received the Covered Software,
or under the terms of any subsequent version published by the license
steward.
10.3. Modified Versions
If you create software not governed by this License, and you want to
create a new license for such software, you may create and use a
modified version of this License if you rename the license and remove
any references to the name of the license steward (except to note that
such modified license differs from this License).
10.4. Distributing Source Code Form that is Incompatible With Secondary
Licenses
If You choose to distribute Source Code Form that is Incompatible With
Secondary Licenses under the terms of this version of the License, the
notice described in Exhibit B of this License must be attached.
Exhibit A - Source Code Form License Notice
-------------------------------------------
This Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.
If it is not possible or desirable to put the notice in a particular
file, then You may include the notice in a location (such as a LICENSE
file in a relevant directory) where a recipient would be likely to look
for such a notice.
You may add additional accurate notices of copyright ownership.
Exhibit B - "Incompatible With Secondary Licenses" Notice
---------------------------------------------------------
This Source Code Form is "Incompatible With Secondary Licenses", as
defined by the Mozilla Public License, v. 2.0.

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# Go-MySQL-Driver
A MySQL-Driver for Go's [database/sql](http://golang.org/pkg/database/sql) package
![Go-MySQL-Driver logo](https://raw.github.com/wiki/go-sql-driver/mysql/gomysql_m.png "Golang Gopher holding the MySQL Dolphin")
**Latest stable Release:** [Version 1.2 (June 03, 2014)](https://github.com/go-sql-driver/mysql/releases)
[![Build Status](https://travis-ci.org/go-sql-driver/mysql.png?branch=master)](https://travis-ci.org/go-sql-driver/mysql)
---------------------------------------
* [Features](#features)
* [Requirements](#requirements)
* [Installation](#installation)
* [Usage](#usage)
* [DSN (Data Source Name)](#dsn-data-source-name)
* [Password](#password)
* [Protocol](#protocol)
* [Address](#address)
* [Parameters](#parameters)
* [Examples](#examples)
* [LOAD DATA LOCAL INFILE support](#load-data-local-infile-support)
* [time.Time support](#timetime-support)
* [Unicode support](#unicode-support)
* [Testing / Development](#testing--development)
* [License](#license)
---------------------------------------
## Features
* Lightweight and [fast](https://github.com/go-sql-driver/sql-benchmark "golang MySQL-Driver performance")
* Native Go implementation. No C-bindings, just pure Go
* Connections over TCP/IPv4, TCP/IPv6, Unix domain sockets or [custom protocols](http://godoc.org/github.com/go-sql-driver/mysql#DialFunc)
* Automatic handling of broken connections
* Automatic Connection Pooling *(by database/sql package)*
* Supports queries larger than 16MB
* Full [`sql.RawBytes`](http://golang.org/pkg/database/sql/#RawBytes) support.
* Intelligent `LONG DATA` handling in prepared statements
* Secure `LOAD DATA LOCAL INFILE` support with file Whitelisting and `io.Reader` support
* Optional `time.Time` parsing
* Optional placeholder interpolation
## Requirements
* Go 1.2 or higher
* MySQL (4.1+), MariaDB, Percona Server, Google CloudSQL or Sphinx (2.2.3+)
---------------------------------------
## Installation
Simple install the package to your [$GOPATH](http://code.google.com/p/go-wiki/wiki/GOPATH "GOPATH") with the [go tool](http://golang.org/cmd/go/ "go command") from shell:
```bash
$ go get github.com/go-sql-driver/mysql
```
Make sure [Git is installed](http://git-scm.com/downloads) on your machine and in your system's `PATH`.
## Usage
_Go MySQL Driver_ is an implementation of Go's `database/sql/driver` interface. You only need to import the driver and can use the full [`database/sql`](http://golang.org/pkg/database/sql) API then.
Use `mysql` as `driverName` and a valid [DSN](#dsn-data-source-name) as `dataSourceName`:
```go
import "database/sql"
import _ "github.com/go-sql-driver/mysql"
db, err := sql.Open("mysql", "user:password@/dbname")
```
[Examples are available in our Wiki](https://github.com/go-sql-driver/mysql/wiki/Examples "Go-MySQL-Driver Examples").
### DSN (Data Source Name)
The Data Source Name has a common format, like e.g. [PEAR DB](http://pear.php.net/manual/en/package.database.db.intro-dsn.php) uses it, but without type-prefix (optional parts marked by squared brackets):
```
[username[:password]@][protocol[(address)]]/dbname[?param1=value1&...&paramN=valueN]
```
A DSN in its fullest form:
```
username:password@protocol(address)/dbname?param=value
```
Except for the databasename, all values are optional. So the minimal DSN is:
```
/dbname
```
If you do not want to preselect a database, leave `dbname` empty:
```
/
```
This has the same effect as an empty DSN string:
```
```
#### Password
Passwords can consist of any character. Escaping is **not** necessary.
#### Protocol
See [net.Dial](http://golang.org/pkg/net/#Dial) for more information which networks are available.
In general you should use an Unix domain socket if available and TCP otherwise for best performance.
#### Address
For TCP and UDP networks, addresses have the form `host:port`.
If `host` is a literal IPv6 address, it must be enclosed in square brackets.
The functions [net.JoinHostPort](http://golang.org/pkg/net/#JoinHostPort) and [net.SplitHostPort](http://golang.org/pkg/net/#SplitHostPort) manipulate addresses in this form.
For Unix domain sockets the address is the absolute path to the MySQL-Server-socket, e.g. `/var/run/mysqld/mysqld.sock` or `/tmp/mysql.sock`.
#### Parameters
*Parameters are case-sensitive!*
Notice that any of `true`, `TRUE`, `True` or `1` is accepted to stand for a true boolean value. Not surprisingly, false can be specified as any of: `false`, `FALSE`, `False` or `0`.
##### `allowAllFiles`
```
Type: bool
Valid Values: true, false
Default: false
```
`allowAllFiles=true` disables the file Whitelist for `LOAD DATA LOCAL INFILE` and allows *all* files.
[*Might be insecure!*](http://dev.mysql.com/doc/refman/5.7/en/load-data-local.html)
##### `allowCleartextPasswords`
```
Type: bool
Valid Values: true, false
Default: false
```
`allowCleartextPasswords=true` allows using the [cleartext client side plugin](http://dev.mysql.com/doc/en/cleartext-authentication-plugin.html) if required by an account, such as one defined with the [PAM authentication plugin](http://dev.mysql.com/doc/en/pam-authentication-plugin.html). Sending passwords in clear text may be a security problem in some configurations. To avoid problems if there is any possibility that the password would be intercepted, clients should connect to MySQL Server using a method that protects the password. Possibilities include [TLS / SSL](#tls), IPsec, or a private network.
##### `allowOldPasswords`
```
Type: bool
Valid Values: true, false
Default: false
```
`allowOldPasswords=true` allows the usage of the insecure old password method. This should be avoided, but is necessary in some cases. See also [the old_passwords wiki page](https://github.com/go-sql-driver/mysql/wiki/old_passwords).
##### `charset`
```
Type: string
Valid Values: <name>
Default: none
```
Sets the charset used for client-server interaction (`"SET NAMES <value>"`). If multiple charsets are set (separated by a comma), the following charset is used if setting the charset failes. This enables for example support for `utf8mb4` ([introduced in MySQL 5.5.3](http://dev.mysql.com/doc/refman/5.5/en/charset-unicode-utf8mb4.html)) with fallback to `utf8` for older servers (`charset=utf8mb4,utf8`).
Usage of the `charset` parameter is discouraged because it issues additional queries to the server.
Unless you need the fallback behavior, please use `collation` instead.
##### `collation`
```
Type: string
Valid Values: <name>
Default: utf8_general_ci
```
Sets the collation used for client-server interaction on connection. In contrast to `charset`, `collation` does not issue additional queries. If the specified collation is unavailable on the target server, the connection will fail.
A list of valid charsets for a server is retrievable with `SHOW COLLATION`.
##### `clientFoundRows`
```
Type: bool
Valid Values: true, false
Default: false
```
`clientFoundRows=true` causes an UPDATE to return the number of matching rows instead of the number of rows changed.
##### `columnsWithAlias`
```
Type: bool
Valid Values: true, false
Default: false
```
When `columnsWithAlias` is true, calls to `sql.Rows.Columns()` will return the table alias and the column name separated by a dot. For example:
```
SELECT u.id FROM users as u
```
will return `u.id` instead of just `id` if `columnsWithAlias=true`.
##### `interpolateParams`
```
Type: bool
Valid Values: true, false
Default: false
```
If `interpolateParams` is true, placeholders (`?`) in calls to `db.Query()` and `db.Exec()` are interpolated into a single query string with given parameters. This reduces the number of roundtrips, since the driver has to prepare a statement, execute it with given parameters and close the statement again with `interpolateParams=false`.
*This can not be used together with the multibyte encodings BIG5, CP932, GB2312, GBK or SJIS. These are blacklisted as they may [introduce a SQL injection vulnerability](http://stackoverflow.com/a/12118602/3430118)!*
##### `loc`
```
Type: string
Valid Values: <escaped name>
Default: UTC
```
Sets the location for time.Time values (when using `parseTime=true`). *"Local"* sets the system's location. See [time.LoadLocation](http://golang.org/pkg/time/#LoadLocation) for details.
Note that this sets the location for time.Time values but does not change MySQL's [time_zone setting](https://dev.mysql.com/doc/refman/5.5/en/time-zone-support.html). For that see the [time_zone system variable](#system-variables), which can also be set as a DSN parameter.
Please keep in mind, that param values must be [url.QueryEscape](http://golang.org/pkg/net/url/#QueryEscape)'ed. Alternatively you can manually replace the `/` with `%2F`. For example `US/Pacific` would be `loc=US%2FPacific`.
##### `parseTime`
```
Type: bool
Valid Values: true, false
Default: false
```
`parseTime=true` changes the output type of `DATE` and `DATETIME` values to `time.Time` instead of `[]byte` / `string`
##### `strict`
```
Type: bool
Valid Values: true, false
Default: false
```
`strict=true` enables the strict mode in which MySQL warnings are treated as errors.
By default MySQL also treats notes as warnings. Use [`sql_notes=false`](http://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html#sysvar_sql_notes) to ignore notes. See the [examples](#examples) for an DSN example.
##### `timeout`
```
Type: decimal number
Default: OS default
```
*Driver* side connection timeout. The value must be a string of decimal numbers, each with optional fraction and a unit suffix ( *"ms"*, *"s"*, *"m"*, *"h"* ), such as *"30s"*, *"0.5m"* or *"1m30s"*. To set a server side timeout, use the parameter [`wait_timeout`](http://dev.mysql.com/doc/refman/5.6/en/server-system-variables.html#sysvar_wait_timeout).
##### `tls`
```
Type: bool / string
Valid Values: true, false, skip-verify, <name>
Default: false
```
`tls=true` enables TLS / SSL encrypted connection to the server. Use `skip-verify` if you want to use a self-signed or invalid certificate (server side). Use a custom value registered with [`mysql.RegisterTLSConfig`](http://godoc.org/github.com/go-sql-driver/mysql#RegisterTLSConfig).
##### System Variables
All other parameters are interpreted as system variables:
* `autocommit`: `"SET autocommit=<value>"`
* [`time_zone`](https://dev.mysql.com/doc/refman/5.5/en/time-zone-support.html): `"SET time_zone=<value>"`
* [`tx_isolation`](https://dev.mysql.com/doc/refman/5.5/en/server-system-variables.html#sysvar_tx_isolation): `"SET tx_isolation=<value>"`
* `param`: `"SET <param>=<value>"`
*The values must be [url.QueryEscape](http://golang.org/pkg/net/url/#QueryEscape)'ed!*
#### Examples
```
user@unix(/path/to/socket)/dbname
```
```
root:pw@unix(/tmp/mysql.sock)/myDatabase?loc=Local
```
```
user:password@tcp(localhost:5555)/dbname?tls=skip-verify&autocommit=true
```
Use the [strict mode](#strict) but ignore notes:
```
user:password@/dbname?strict=true&sql_notes=false
```
TCP via IPv6:
```
user:password@tcp([de:ad:be:ef::ca:fe]:80)/dbname?timeout=90s&collation=utf8mb4_unicode_ci
```
TCP on a remote host, e.g. Amazon RDS:
```
id:password@tcp(your-amazonaws-uri.com:3306)/dbname
```
Google Cloud SQL on App Engine:
```
user@cloudsql(project-id:instance-name)/dbname
```
TCP using default port (3306) on localhost:
```
user:password@tcp/dbname?charset=utf8mb4,utf8&sys_var=esc%40ped
```
Use the default protocol (tcp) and host (localhost:3306):
```
user:password@/dbname
```
No Database preselected:
```
user:password@/
```
### `LOAD DATA LOCAL INFILE` support
For this feature you need direct access to the package. Therefore you must change the import path (no `_`):
```go
import "github.com/go-sql-driver/mysql"
```
Files must be whitelisted by registering them with `mysql.RegisterLocalFile(filepath)` (recommended) or the Whitelist check must be deactivated by using the DSN parameter `allowAllFiles=true` ([*Might be insecure!*](http://dev.mysql.com/doc/refman/5.7/en/load-data-local.html)).
To use a `io.Reader` a handler function must be registered with `mysql.RegisterReaderHandler(name, handler)` which returns a `io.Reader` or `io.ReadCloser`. The Reader is available with the filepath `Reader::<name>` then. Choose different names for different handlers and `DeregisterReaderHandler` when you don't need it anymore.
See the [godoc of Go-MySQL-Driver](http://godoc.org/github.com/go-sql-driver/mysql "golang mysql driver documentation") for details.
### `time.Time` support
The default internal output type of MySQL `DATE` and `DATETIME` values is `[]byte` which allows you to scan the value into a `[]byte`, `string` or `sql.RawBytes` variable in your programm.
However, many want to scan MySQL `DATE` and `DATETIME` values into `time.Time` variables, which is the logical opposite in Go to `DATE` and `DATETIME` in MySQL. You can do that by changing the internal output type from `[]byte` to `time.Time` with the DSN parameter `parseTime=true`. You can set the default [`time.Time` location](http://golang.org/pkg/time/#Location) with the `loc` DSN parameter.
**Caution:** As of Go 1.1, this makes `time.Time` the only variable type you can scan `DATE` and `DATETIME` values into. This breaks for example [`sql.RawBytes` support](https://github.com/go-sql-driver/mysql/wiki/Examples#rawbytes).
Alternatively you can use the [`NullTime`](http://godoc.org/github.com/go-sql-driver/mysql#NullTime) type as the scan destination, which works with both `time.Time` and `string` / `[]byte`.
### Unicode support
Since version 1.1 Go-MySQL-Driver automatically uses the collation `utf8_general_ci` by default.
Other collations / charsets can be set using the [`collation`](#collation) DSN parameter.
Version 1.0 of the driver recommended adding `&charset=utf8` (alias for `SET NAMES utf8`) to the DSN to enable proper UTF-8 support. This is not necessary anymore. The [`collation`](#collation) parameter should be preferred to set another collation / charset than the default.
See http://dev.mysql.com/doc/refman/5.7/en/charset-unicode.html for more details on MySQL's Unicode support.
## Testing / Development
To run the driver tests you may need to adjust the configuration. See the [Testing Wiki-Page](https://github.com/go-sql-driver/mysql/wiki/Testing "Testing") for details.
Go-MySQL-Driver is not feature-complete yet. Your help is very appreciated.
If you want to contribute, you can work on an [open issue](https://github.com/go-sql-driver/mysql/issues?state=open) or review a [pull request](https://github.com/go-sql-driver/mysql/pulls).
See the [Contribution Guidelines](https://github.com/go-sql-driver/mysql/blob/master/CONTRIBUTING.md) for details.
---------------------------------------
## License
Go-MySQL-Driver is licensed under the [Mozilla Public License Version 2.0](https://raw.github.com/go-sql-driver/mysql/master/LICENSE)
Mozilla summarizes the license scope as follows:
> MPL: The copyleft applies to any files containing MPLed code.
That means:
* You can **use** the **unchanged** source code both in private and commercially
* When distributing, you **must publish** the source code of any **changed files** licensed under the MPL 2.0 under a) the MPL 2.0 itself or b) a compatible license (e.g. GPL 3.0 or Apache License 2.0)
* You **needn't publish** the source code of your library as long as the files licensed under the MPL 2.0 are **unchanged**
Please read the [MPL 2.0 FAQ](http://www.mozilla.org/MPL/2.0/FAQ.html) if you have further questions regarding the license.
You can read the full terms here: [LICENSE](https://raw.github.com/go-sql-driver/mysql/master/LICENSE)
![Go Gopher and MySQL Dolphin](https://raw.github.com/wiki/go-sql-driver/mysql/go-mysql-driver_m.jpg "Golang Gopher transporting the MySQL Dolphin in a wheelbarrow")

19
vendor/github.com/go-sql-driver/mysql/appengine.go generated vendored Normal file
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// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2013 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
// +build appengine
package mysql
import (
"appengine/cloudsql"
)
func init() {
RegisterDial("cloudsql", cloudsql.Dial)
}

136
vendor/github.com/go-sql-driver/mysql/buffer.go generated vendored Normal file
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// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2013 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import "io"
const defaultBufSize = 4096
// A buffer which is used for both reading and writing.
// This is possible since communication on each connection is synchronous.
// In other words, we can't write and read simultaneously on the same connection.
// The buffer is similar to bufio.Reader / Writer but zero-copy-ish
// Also highly optimized for this particular use case.
type buffer struct {
buf []byte
rd io.Reader
idx int
length int
}
func newBuffer(rd io.Reader) buffer {
var b [defaultBufSize]byte
return buffer{
buf: b[:],
rd: rd,
}
}
// fill reads into the buffer until at least _need_ bytes are in it
func (b *buffer) fill(need int) error {
n := b.length
// move existing data to the beginning
if n > 0 && b.idx > 0 {
copy(b.buf[0:n], b.buf[b.idx:])
}
// grow buffer if necessary
// TODO: let the buffer shrink again at some point
// Maybe keep the org buf slice and swap back?
if need > len(b.buf) {
// Round up to the next multiple of the default size
newBuf := make([]byte, ((need/defaultBufSize)+1)*defaultBufSize)
copy(newBuf, b.buf)
b.buf = newBuf
}
b.idx = 0
for {
nn, err := b.rd.Read(b.buf[n:])
n += nn
switch err {
case nil:
if n < need {
continue
}
b.length = n
return nil
case io.EOF:
if n >= need {
b.length = n
return nil
}
return io.ErrUnexpectedEOF
default:
return err
}
}
}
// returns next N bytes from buffer.
// The returned slice is only guaranteed to be valid until the next read
func (b *buffer) readNext(need int) ([]byte, error) {
if b.length < need {
// refill
if err := b.fill(need); err != nil {
return nil, err
}
}
offset := b.idx
b.idx += need
b.length -= need
return b.buf[offset:b.idx], nil
}
// returns a buffer with the requested size.
// If possible, a slice from the existing buffer is returned.
// Otherwise a bigger buffer is made.
// Only one buffer (total) can be used at a time.
func (b *buffer) takeBuffer(length int) []byte {
if b.length > 0 {
return nil
}
// test (cheap) general case first
if length <= defaultBufSize || length <= cap(b.buf) {
return b.buf[:length]
}
if length < maxPacketSize {
b.buf = make([]byte, length)
return b.buf
}
return make([]byte, length)
}
// shortcut which can be used if the requested buffer is guaranteed to be
// smaller than defaultBufSize
// Only one buffer (total) can be used at a time.
func (b *buffer) takeSmallBuffer(length int) []byte {
if b.length == 0 {
return b.buf[:length]
}
return nil
}
// takeCompleteBuffer returns the complete existing buffer.
// This can be used if the necessary buffer size is unknown.
// Only one buffer (total) can be used at a time.
func (b *buffer) takeCompleteBuffer() []byte {
if b.length == 0 {
return b.buf
}
return nil
}

250
vendor/github.com/go-sql-driver/mysql/collations.go generated vendored Normal file
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// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2014 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
const defaultCollation byte = 33 // utf8_general_ci
// A list of available collations mapped to the internal ID.
// To update this map use the following MySQL query:
// SELECT COLLATION_NAME, ID FROM information_schema.COLLATIONS
var collations = map[string]byte{
"big5_chinese_ci": 1,
"latin2_czech_cs": 2,
"dec8_swedish_ci": 3,
"cp850_general_ci": 4,
"latin1_german1_ci": 5,
"hp8_english_ci": 6,
"koi8r_general_ci": 7,
"latin1_swedish_ci": 8,
"latin2_general_ci": 9,
"swe7_swedish_ci": 10,
"ascii_general_ci": 11,
"ujis_japanese_ci": 12,
"sjis_japanese_ci": 13,
"cp1251_bulgarian_ci": 14,
"latin1_danish_ci": 15,
"hebrew_general_ci": 16,
"tis620_thai_ci": 18,
"euckr_korean_ci": 19,
"latin7_estonian_cs": 20,
"latin2_hungarian_ci": 21,
"koi8u_general_ci": 22,
"cp1251_ukrainian_ci": 23,
"gb2312_chinese_ci": 24,
"greek_general_ci": 25,
"cp1250_general_ci": 26,
"latin2_croatian_ci": 27,
"gbk_chinese_ci": 28,
"cp1257_lithuanian_ci": 29,
"latin5_turkish_ci": 30,
"latin1_german2_ci": 31,
"armscii8_general_ci": 32,
"utf8_general_ci": 33,
"cp1250_czech_cs": 34,
"ucs2_general_ci": 35,
"cp866_general_ci": 36,
"keybcs2_general_ci": 37,
"macce_general_ci": 38,
"macroman_general_ci": 39,
"cp852_general_ci": 40,
"latin7_general_ci": 41,
"latin7_general_cs": 42,
"macce_bin": 43,
"cp1250_croatian_ci": 44,
"utf8mb4_general_ci": 45,
"utf8mb4_bin": 46,
"latin1_bin": 47,
"latin1_general_ci": 48,
"latin1_general_cs": 49,
"cp1251_bin": 50,
"cp1251_general_ci": 51,
"cp1251_general_cs": 52,
"macroman_bin": 53,
"utf16_general_ci": 54,
"utf16_bin": 55,
"utf16le_general_ci": 56,
"cp1256_general_ci": 57,
"cp1257_bin": 58,
"cp1257_general_ci": 59,
"utf32_general_ci": 60,
"utf32_bin": 61,
"utf16le_bin": 62,
"binary": 63,
"armscii8_bin": 64,
"ascii_bin": 65,
"cp1250_bin": 66,
"cp1256_bin": 67,
"cp866_bin": 68,
"dec8_bin": 69,
"greek_bin": 70,
"hebrew_bin": 71,
"hp8_bin": 72,
"keybcs2_bin": 73,
"koi8r_bin": 74,
"koi8u_bin": 75,
"latin2_bin": 77,
"latin5_bin": 78,
"latin7_bin": 79,
"cp850_bin": 80,
"cp852_bin": 81,
"swe7_bin": 82,
"utf8_bin": 83,
"big5_bin": 84,
"euckr_bin": 85,
"gb2312_bin": 86,
"gbk_bin": 87,
"sjis_bin": 88,
"tis620_bin": 89,
"ucs2_bin": 90,
"ujis_bin": 91,
"geostd8_general_ci": 92,
"geostd8_bin": 93,
"latin1_spanish_ci": 94,
"cp932_japanese_ci": 95,
"cp932_bin": 96,
"eucjpms_japanese_ci": 97,
"eucjpms_bin": 98,
"cp1250_polish_ci": 99,
"utf16_unicode_ci": 101,
"utf16_icelandic_ci": 102,
"utf16_latvian_ci": 103,
"utf16_romanian_ci": 104,
"utf16_slovenian_ci": 105,
"utf16_polish_ci": 106,
"utf16_estonian_ci": 107,
"utf16_spanish_ci": 108,
"utf16_swedish_ci": 109,
"utf16_turkish_ci": 110,
"utf16_czech_ci": 111,
"utf16_danish_ci": 112,
"utf16_lithuanian_ci": 113,
"utf16_slovak_ci": 114,
"utf16_spanish2_ci": 115,
"utf16_roman_ci": 116,
"utf16_persian_ci": 117,
"utf16_esperanto_ci": 118,
"utf16_hungarian_ci": 119,
"utf16_sinhala_ci": 120,
"utf16_german2_ci": 121,
"utf16_croatian_ci": 122,
"utf16_unicode_520_ci": 123,
"utf16_vietnamese_ci": 124,
"ucs2_unicode_ci": 128,
"ucs2_icelandic_ci": 129,
"ucs2_latvian_ci": 130,
"ucs2_romanian_ci": 131,
"ucs2_slovenian_ci": 132,
"ucs2_polish_ci": 133,
"ucs2_estonian_ci": 134,
"ucs2_spanish_ci": 135,
"ucs2_swedish_ci": 136,
"ucs2_turkish_ci": 137,
"ucs2_czech_ci": 138,
"ucs2_danish_ci": 139,
"ucs2_lithuanian_ci": 140,
"ucs2_slovak_ci": 141,
"ucs2_spanish2_ci": 142,
"ucs2_roman_ci": 143,
"ucs2_persian_ci": 144,
"ucs2_esperanto_ci": 145,
"ucs2_hungarian_ci": 146,
"ucs2_sinhala_ci": 147,
"ucs2_german2_ci": 148,
"ucs2_croatian_ci": 149,
"ucs2_unicode_520_ci": 150,
"ucs2_vietnamese_ci": 151,
"ucs2_general_mysql500_ci": 159,
"utf32_unicode_ci": 160,
"utf32_icelandic_ci": 161,
"utf32_latvian_ci": 162,
"utf32_romanian_ci": 163,
"utf32_slovenian_ci": 164,
"utf32_polish_ci": 165,
"utf32_estonian_ci": 166,
"utf32_spanish_ci": 167,
"utf32_swedish_ci": 168,
"utf32_turkish_ci": 169,
"utf32_czech_ci": 170,
"utf32_danish_ci": 171,
"utf32_lithuanian_ci": 172,
"utf32_slovak_ci": 173,
"utf32_spanish2_ci": 174,
"utf32_roman_ci": 175,
"utf32_persian_ci": 176,
"utf32_esperanto_ci": 177,
"utf32_hungarian_ci": 178,
"utf32_sinhala_ci": 179,
"utf32_german2_ci": 180,
"utf32_croatian_ci": 181,
"utf32_unicode_520_ci": 182,
"utf32_vietnamese_ci": 183,
"utf8_unicode_ci": 192,
"utf8_icelandic_ci": 193,
"utf8_latvian_ci": 194,
"utf8_romanian_ci": 195,
"utf8_slovenian_ci": 196,
"utf8_polish_ci": 197,
"utf8_estonian_ci": 198,
"utf8_spanish_ci": 199,
"utf8_swedish_ci": 200,
"utf8_turkish_ci": 201,
"utf8_czech_ci": 202,
"utf8_danish_ci": 203,
"utf8_lithuanian_ci": 204,
"utf8_slovak_ci": 205,
"utf8_spanish2_ci": 206,
"utf8_roman_ci": 207,
"utf8_persian_ci": 208,
"utf8_esperanto_ci": 209,
"utf8_hungarian_ci": 210,
"utf8_sinhala_ci": 211,
"utf8_german2_ci": 212,
"utf8_croatian_ci": 213,
"utf8_unicode_520_ci": 214,
"utf8_vietnamese_ci": 215,
"utf8_general_mysql500_ci": 223,
"utf8mb4_unicode_ci": 224,
"utf8mb4_icelandic_ci": 225,
"utf8mb4_latvian_ci": 226,
"utf8mb4_romanian_ci": 227,
"utf8mb4_slovenian_ci": 228,
"utf8mb4_polish_ci": 229,
"utf8mb4_estonian_ci": 230,
"utf8mb4_spanish_ci": 231,
"utf8mb4_swedish_ci": 232,
"utf8mb4_turkish_ci": 233,
"utf8mb4_czech_ci": 234,
"utf8mb4_danish_ci": 235,
"utf8mb4_lithuanian_ci": 236,
"utf8mb4_slovak_ci": 237,
"utf8mb4_spanish2_ci": 238,
"utf8mb4_roman_ci": 239,
"utf8mb4_persian_ci": 240,
"utf8mb4_esperanto_ci": 241,
"utf8mb4_hungarian_ci": 242,
"utf8mb4_sinhala_ci": 243,
"utf8mb4_german2_ci": 244,
"utf8mb4_croatian_ci": 245,
"utf8mb4_unicode_520_ci": 246,
"utf8mb4_vietnamese_ci": 247,
}
// A blacklist of collations which is unsafe to interpolate parameters.
// These multibyte encodings may contains 0x5c (`\`) in their trailing bytes.
var unsafeCollations = map[byte]bool{
1: true, // big5_chinese_ci
13: true, // sjis_japanese_ci
28: true, // gbk_chinese_ci
84: true, // big5_bin
86: true, // gb2312_bin
87: true, // gbk_bin
88: true, // sjis_bin
95: true, // cp932_japanese_ci
96: true, // cp932_bin
}

412
vendor/github.com/go-sql-driver/mysql/connection.go generated vendored Normal file
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// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"crypto/tls"
"database/sql/driver"
"errors"
"net"
"strconv"
"strings"
"time"
)
type mysqlConn struct {
buf buffer
netConn net.Conn
affectedRows uint64
insertId uint64
cfg *config
maxPacketAllowed int
maxWriteSize int
flags clientFlag
status statusFlag
sequence uint8
parseTime bool
strict bool
}
type config struct {
user string
passwd string
net string
addr string
dbname string
params map[string]string
loc *time.Location
tls *tls.Config
timeout time.Duration
collation uint8
allowAllFiles bool
allowOldPasswords bool
allowCleartextPasswords bool
clientFoundRows bool
columnsWithAlias bool
interpolateParams bool
}
// Handles parameters set in DSN after the connection is established
func (mc *mysqlConn) handleParams() (err error) {
for param, val := range mc.cfg.params {
switch param {
// Charset
case "charset":
charsets := strings.Split(val, ",")
for i := range charsets {
// ignore errors here - a charset may not exist
err = mc.exec("SET NAMES " + charsets[i])
if err == nil {
break
}
}
if err != nil {
return
}
// time.Time parsing
case "parseTime":
var isBool bool
mc.parseTime, isBool = readBool(val)
if !isBool {
return errors.New("Invalid Bool value: " + val)
}
// Strict mode
case "strict":
var isBool bool
mc.strict, isBool = readBool(val)
if !isBool {
return errors.New("Invalid Bool value: " + val)
}
// Compression
case "compress":
err = errors.New("Compression not implemented yet")
return
// System Vars
default:
err = mc.exec("SET " + param + "=" + val + "")
if err != nil {
return
}
}
}
return
}
func (mc *mysqlConn) Begin() (driver.Tx, error) {
if mc.netConn == nil {
errLog.Print(ErrInvalidConn)
return nil, driver.ErrBadConn
}
err := mc.exec("START TRANSACTION")
if err == nil {
return &mysqlTx{mc}, err
}
return nil, err
}
func (mc *mysqlConn) Close() (err error) {
// Makes Close idempotent
if mc.netConn != nil {
err = mc.writeCommandPacket(comQuit)
}
mc.cleanup()
return
}
// Closes the network connection and unsets internal variables. Do not call this
// function after successfully authentication, call Close instead. This function
// is called before auth or on auth failure because MySQL will have already
// closed the network connection.
func (mc *mysqlConn) cleanup() {
// Makes cleanup idempotent
if mc.netConn != nil {
if err := mc.netConn.Close(); err != nil {
errLog.Print(err)
}
mc.netConn = nil
}
mc.cfg = nil
mc.buf.rd = nil
}
func (mc *mysqlConn) Prepare(query string) (driver.Stmt, error) {
if mc.netConn == nil {
errLog.Print(ErrInvalidConn)
return nil, driver.ErrBadConn
}
// Send command
err := mc.writeCommandPacketStr(comStmtPrepare, query)
if err != nil {
return nil, err
}
stmt := &mysqlStmt{
mc: mc,
}
// Read Result
columnCount, err := stmt.readPrepareResultPacket()
if err == nil {
if stmt.paramCount > 0 {
if err = mc.readUntilEOF(); err != nil {
return nil, err
}
}
if columnCount > 0 {
err = mc.readUntilEOF()
}
}
return stmt, err
}
func (mc *mysqlConn) interpolateParams(query string, args []driver.Value) (string, error) {
buf := mc.buf.takeCompleteBuffer()
if buf == nil {
// can not take the buffer. Something must be wrong with the connection
errLog.Print(ErrBusyBuffer)
return "", driver.ErrBadConn
}
buf = buf[:0]
argPos := 0
for i := 0; i < len(query); i++ {
q := strings.IndexByte(query[i:], '?')
if q == -1 {
buf = append(buf, query[i:]...)
break
}
buf = append(buf, query[i:i+q]...)
i += q
arg := args[argPos]
argPos++
if arg == nil {
buf = append(buf, "NULL"...)
continue
}
switch v := arg.(type) {
case int64:
buf = strconv.AppendInt(buf, v, 10)
case float64:
buf = strconv.AppendFloat(buf, v, 'g', -1, 64)
case bool:
if v {
buf = append(buf, '1')
} else {
buf = append(buf, '0')
}
case time.Time:
if v.IsZero() {
buf = append(buf, "'0000-00-00'"...)
} else {
v := v.In(mc.cfg.loc)
v = v.Add(time.Nanosecond * 500) // To round under microsecond
year := v.Year()
year100 := year / 100
year1 := year % 100
month := v.Month()
day := v.Day()
hour := v.Hour()
minute := v.Minute()
second := v.Second()
micro := v.Nanosecond() / 1000
buf = append(buf, []byte{
'\'',
digits10[year100], digits01[year100],
digits10[year1], digits01[year1],
'-',
digits10[month], digits01[month],
'-',
digits10[day], digits01[day],
' ',
digits10[hour], digits01[hour],
':',
digits10[minute], digits01[minute],
':',
digits10[second], digits01[second],
}...)
if micro != 0 {
micro10000 := micro / 10000
micro100 := micro / 100 % 100
micro1 := micro % 100
buf = append(buf, []byte{
'.',
digits10[micro10000], digits01[micro10000],
digits10[micro100], digits01[micro100],
digits10[micro1], digits01[micro1],
}...)
}
buf = append(buf, '\'')
}
case []byte:
if v == nil {
buf = append(buf, "NULL"...)
} else {
buf = append(buf, "_binary'"...)
if mc.status&statusNoBackslashEscapes == 0 {
buf = escapeBytesBackslash(buf, v)
} else {
buf = escapeBytesQuotes(buf, v)
}
buf = append(buf, '\'')
}
case string:
buf = append(buf, '\'')
if mc.status&statusNoBackslashEscapes == 0 {
buf = escapeStringBackslash(buf, v)
} else {
buf = escapeStringQuotes(buf, v)
}
buf = append(buf, '\'')
default:
return "", driver.ErrSkip
}
if len(buf)+4 > mc.maxPacketAllowed {
return "", driver.ErrSkip
}
}
if argPos != len(args) {
return "", driver.ErrSkip
}
return string(buf), nil
}
func (mc *mysqlConn) Exec(query string, args []driver.Value) (driver.Result, error) {
if mc.netConn == nil {
errLog.Print(ErrInvalidConn)
return nil, driver.ErrBadConn
}
if len(args) != 0 {
if !mc.cfg.interpolateParams {
return nil, driver.ErrSkip
}
// try to interpolate the parameters to save extra roundtrips for preparing and closing a statement
prepared, err := mc.interpolateParams(query, args)
if err != nil {
return nil, err
}
query = prepared
args = nil
}
mc.affectedRows = 0
mc.insertId = 0
err := mc.exec(query)
if err == nil {
return &mysqlResult{
affectedRows: int64(mc.affectedRows),
insertId: int64(mc.insertId),
}, err
}
return nil, err
}
// Internal function to execute commands
func (mc *mysqlConn) exec(query string) error {
// Send command
err := mc.writeCommandPacketStr(comQuery, query)
if err != nil {
return err
}
// Read Result
resLen, err := mc.readResultSetHeaderPacket()
if err == nil && resLen > 0 {
if err = mc.readUntilEOF(); err != nil {
return err
}
err = mc.readUntilEOF()
}
return err
}
func (mc *mysqlConn) Query(query string, args []driver.Value) (driver.Rows, error) {
if mc.netConn == nil {
errLog.Print(ErrInvalidConn)
return nil, driver.ErrBadConn
}
if len(args) != 0 {
if !mc.cfg.interpolateParams {
return nil, driver.ErrSkip
}
// try client-side prepare to reduce roundtrip
prepared, err := mc.interpolateParams(query, args)
if err != nil {
return nil, err
}
query = prepared
args = nil
}
// Send command
err := mc.writeCommandPacketStr(comQuery, query)
if err == nil {
// Read Result
var resLen int
resLen, err = mc.readResultSetHeaderPacket()
if err == nil {
rows := new(textRows)
rows.mc = mc
if resLen == 0 {
// no columns, no more data
return emptyRows{}, nil
}
// Columns
rows.columns, err = mc.readColumns(resLen)
return rows, err
}
}
return nil, err
}
// Gets the value of the given MySQL System Variable
// The returned byte slice is only valid until the next read
func (mc *mysqlConn) getSystemVar(name string) ([]byte, error) {
// Send command
if err := mc.writeCommandPacketStr(comQuery, "SELECT @@"+name); err != nil {
return nil, err
}
// Read Result
resLen, err := mc.readResultSetHeaderPacket()
if err == nil {
rows := new(textRows)
rows.mc = mc
if resLen > 0 {
// Columns
if err := mc.readUntilEOF(); err != nil {
return nil, err
}
}
dest := make([]driver.Value, resLen)
if err = rows.readRow(dest); err == nil {
return dest[0].([]byte), mc.readUntilEOF()
}
}
return nil, err
}

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vendor/github.com/go-sql-driver/mysql/const.go generated vendored Normal file
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// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
const (
minProtocolVersion byte = 10
maxPacketSize = 1<<24 - 1
timeFormat = "2006-01-02 15:04:05.999999"
)
// MySQL constants documentation:
// http://dev.mysql.com/doc/internals/en/client-server-protocol.html
const (
iOK byte = 0x00
iLocalInFile byte = 0xfb
iEOF byte = 0xfe
iERR byte = 0xff
)
// https://dev.mysql.com/doc/internals/en/capability-flags.html#packet-Protocol::CapabilityFlags
type clientFlag uint32
const (
clientLongPassword clientFlag = 1 << iota
clientFoundRows
clientLongFlag
clientConnectWithDB
clientNoSchema
clientCompress
clientODBC
clientLocalFiles
clientIgnoreSpace
clientProtocol41
clientInteractive
clientSSL
clientIgnoreSIGPIPE
clientTransactions
clientReserved
clientSecureConn
clientMultiStatements
clientMultiResults
clientPSMultiResults
clientPluginAuth
clientConnectAttrs
clientPluginAuthLenEncClientData
clientCanHandleExpiredPasswords
clientSessionTrack
clientDeprecateEOF
)
const (
comQuit byte = iota + 1
comInitDB
comQuery
comFieldList
comCreateDB
comDropDB
comRefresh
comShutdown
comStatistics
comProcessInfo
comConnect
comProcessKill
comDebug
comPing
comTime
comDelayedInsert
comChangeUser
comBinlogDump
comTableDump
comConnectOut
comRegisterSlave
comStmtPrepare
comStmtExecute
comStmtSendLongData
comStmtClose
comStmtReset
comSetOption
comStmtFetch
)
// https://dev.mysql.com/doc/internals/en/com-query-response.html#packet-Protocol::ColumnType
const (
fieldTypeDecimal byte = iota
fieldTypeTiny
fieldTypeShort
fieldTypeLong
fieldTypeFloat
fieldTypeDouble
fieldTypeNULL
fieldTypeTimestamp
fieldTypeLongLong
fieldTypeInt24
fieldTypeDate
fieldTypeTime
fieldTypeDateTime
fieldTypeYear
fieldTypeNewDate
fieldTypeVarChar
fieldTypeBit
)
const (
fieldTypeNewDecimal byte = iota + 0xf6
fieldTypeEnum
fieldTypeSet
fieldTypeTinyBLOB
fieldTypeMediumBLOB
fieldTypeLongBLOB
fieldTypeBLOB
fieldTypeVarString
fieldTypeString
fieldTypeGeometry
)
type fieldFlag uint16
const (
flagNotNULL fieldFlag = 1 << iota
flagPriKey
flagUniqueKey
flagMultipleKey
flagBLOB
flagUnsigned
flagZeroFill
flagBinary
flagEnum
flagAutoIncrement
flagTimestamp
flagSet
flagUnknown1
flagUnknown2
flagUnknown3
flagUnknown4
)
// http://dev.mysql.com/doc/internals/en/status-flags.html
type statusFlag uint16
const (
statusInTrans statusFlag = 1 << iota
statusInAutocommit
statusReserved // Not in documentation
statusMoreResultsExists
statusNoGoodIndexUsed
statusNoIndexUsed
statusCursorExists
statusLastRowSent
statusDbDropped
statusNoBackslashEscapes
statusMetadataChanged
statusQueryWasSlow
statusPsOutParams
statusInTransReadonly
statusSessionStateChanged
)

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vendor/github.com/go-sql-driver/mysql/driver.go generated vendored Normal file
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// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// The driver should be used via the database/sql package:
//
// import "database/sql"
// import _ "github.com/go-sql-driver/mysql"
//
// db, err := sql.Open("mysql", "user:password@/dbname")
//
// See https://github.com/go-sql-driver/mysql#usage for details
package mysql
import (
"database/sql"
"database/sql/driver"
"net"
)
// This struct is exported to make the driver directly accessible.
// In general the driver is used via the database/sql package.
type MySQLDriver struct{}
// DialFunc is a function which can be used to establish the network connection.
// Custom dial functions must be registered with RegisterDial
type DialFunc func(addr string) (net.Conn, error)
var dials map[string]DialFunc
// RegisterDial registers a custom dial function. It can then be used by the
// network address mynet(addr), where mynet is the registered new network.
// addr is passed as a parameter to the dial function.
func RegisterDial(net string, dial DialFunc) {
if dials == nil {
dials = make(map[string]DialFunc)
}
dials[net] = dial
}
// Open new Connection.
// See https://github.com/go-sql-driver/mysql#dsn-data-source-name for how
// the DSN string is formated
func (d MySQLDriver) Open(dsn string) (driver.Conn, error) {
var err error
// New mysqlConn
mc := &mysqlConn{
maxPacketAllowed: maxPacketSize,
maxWriteSize: maxPacketSize - 1,
}
mc.cfg, err = parseDSN(dsn)
if err != nil {
return nil, err
}
// Connect to Server
if dial, ok := dials[mc.cfg.net]; ok {
mc.netConn, err = dial(mc.cfg.addr)
} else {
nd := net.Dialer{Timeout: mc.cfg.timeout}
mc.netConn, err = nd.Dial(mc.cfg.net, mc.cfg.addr)
}
if err != nil {
return nil, err
}
// Enable TCP Keepalives on TCP connections
if tc, ok := mc.netConn.(*net.TCPConn); ok {
if err := tc.SetKeepAlive(true); err != nil {
// Don't send COM_QUIT before handshake.
mc.netConn.Close()
mc.netConn = nil
return nil, err
}
}
mc.buf = newBuffer(mc.netConn)
// Reading Handshake Initialization Packet
cipher, err := mc.readInitPacket()
if err != nil {
mc.cleanup()
return nil, err
}
// Send Client Authentication Packet
if err = mc.writeAuthPacket(cipher); err != nil {
mc.cleanup()
return nil, err
}
// Handle response to auth packet, switch methods if possible
if err = handleAuthResult(mc, cipher); err != nil {
// Authentication failed and MySQL has already closed the connection
// (https://dev.mysql.com/doc/internals/en/authentication-fails.html).
// Do not send COM_QUIT, just cleanup and return the error.
mc.cleanup()
return nil, err
}
// Get max allowed packet size
maxap, err := mc.getSystemVar("max_allowed_packet")
if err != nil {
mc.Close()
return nil, err
}
mc.maxPacketAllowed = stringToInt(maxap) - 1
if mc.maxPacketAllowed < maxPacketSize {
mc.maxWriteSize = mc.maxPacketAllowed
}
// Handle DSN Params
err = mc.handleParams()
if err != nil {
mc.Close()
return nil, err
}
return mc, nil
}
func handleAuthResult(mc *mysqlConn, cipher []byte) error {
// Read Result Packet
err := mc.readResultOK()
if err == nil {
return nil // auth successful
}
if mc.cfg == nil {
return err // auth failed and retry not possible
}
// Retry auth if configured to do so.
if mc.cfg.allowOldPasswords && err == ErrOldPassword {
// Retry with old authentication method. Note: there are edge cases
// where this should work but doesn't; this is currently "wontfix":
// https://github.com/go-sql-driver/mysql/issues/184
if err = mc.writeOldAuthPacket(cipher); err != nil {
return err
}
err = mc.readResultOK()
} else if mc.cfg.allowCleartextPasswords && err == ErrCleartextPassword {
// Retry with clear text password for
// http://dev.mysql.com/doc/refman/5.7/en/cleartext-authentication-plugin.html
// http://dev.mysql.com/doc/refman/5.7/en/pam-authentication-plugin.html
if err = mc.writeClearAuthPacket(); err != nil {
return err
}
err = mc.readResultOK()
}
return err
}
func init() {
sql.Register("mysql", &MySQLDriver{})
}

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vendor/github.com/go-sql-driver/mysql/errors.go generated vendored Normal file
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// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2013 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"database/sql/driver"
"errors"
"fmt"
"io"
"log"
"os"
)
// Various errors the driver might return. Can change between driver versions.
var (
ErrInvalidConn = errors.New("Invalid Connection")
ErrMalformPkt = errors.New("Malformed Packet")
ErrNoTLS = errors.New("TLS encryption requested but server does not support TLS")
ErrOldPassword = errors.New("This user requires old password authentication. If you still want to use it, please add 'allowOldPasswords=1' to your DSN. See also https://github.com/go-sql-driver/mysql/wiki/old_passwords")
ErrCleartextPassword = errors.New("This user requires clear text authentication. If you still want to use it, please add 'allowCleartextPasswords=1' to your DSN.")
ErrUnknownPlugin = errors.New("The authentication plugin is not supported.")
ErrOldProtocol = errors.New("MySQL-Server does not support required Protocol 41+")
ErrPktSync = errors.New("Commands out of sync. You can't run this command now")
ErrPktSyncMul = errors.New("Commands out of sync. Did you run multiple statements at once?")
ErrPktTooLarge = errors.New("Packet for query is too large. You can change this value on the server by adjusting the 'max_allowed_packet' variable.")
ErrBusyBuffer = errors.New("Busy buffer")
)
var errLog Logger = log.New(os.Stderr, "[MySQL] ", log.Ldate|log.Ltime|log.Lshortfile)
// Logger is used to log critical error messages.
type Logger interface {
Print(v ...interface{})
}
// SetLogger is used to set the logger for critical errors.
// The initial logger is os.Stderr.
func SetLogger(logger Logger) error {
if logger == nil {
return errors.New("logger is nil")
}
errLog = logger
return nil
}
// MySQLError is an error type which represents a single MySQL error
type MySQLError struct {
Number uint16
Message string
}
func (me *MySQLError) Error() string {
return fmt.Sprintf("Error %d: %s", me.Number, me.Message)
}
// MySQLWarnings is an error type which represents a group of one or more MySQL
// warnings
type MySQLWarnings []MySQLWarning
func (mws MySQLWarnings) Error() string {
var msg string
for i, warning := range mws {
if i > 0 {
msg += "\r\n"
}
msg += fmt.Sprintf(
"%s %s: %s",
warning.Level,
warning.Code,
warning.Message,
)
}
return msg
}
// MySQLWarning is an error type which represents a single MySQL warning.
// Warnings are returned in groups only. See MySQLWarnings
type MySQLWarning struct {
Level string
Code string
Message string
}
func (mc *mysqlConn) getWarnings() (err error) {
rows, err := mc.Query("SHOW WARNINGS", nil)
if err != nil {
return
}
var warnings = MySQLWarnings{}
var values = make([]driver.Value, 3)
for {
err = rows.Next(values)
switch err {
case nil:
warning := MySQLWarning{}
if raw, ok := values[0].([]byte); ok {
warning.Level = string(raw)
} else {
warning.Level = fmt.Sprintf("%s", values[0])
}
if raw, ok := values[1].([]byte); ok {
warning.Code = string(raw)
} else {
warning.Code = fmt.Sprintf("%s", values[1])
}
if raw, ok := values[2].([]byte); ok {
warning.Message = string(raw)
} else {
warning.Message = fmt.Sprintf("%s", values[0])
}
warnings = append(warnings, warning)
case io.EOF:
return warnings
default:
rows.Close()
return
}
}
}

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vendor/github.com/go-sql-driver/mysql/infile.go generated vendored Normal file
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// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2013 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"fmt"
"io"
"os"
"strings"
"sync"
)
var (
fileRegister map[string]bool
fileRegisterLock sync.RWMutex
readerRegister map[string]func() io.Reader
readerRegisterLock sync.RWMutex
)
// RegisterLocalFile adds the given file to the file whitelist,
// so that it can be used by "LOAD DATA LOCAL INFILE <filepath>".
// Alternatively you can allow the use of all local files with
// the DSN parameter 'allowAllFiles=true'
//
// filePath := "/home/gopher/data.csv"
// mysql.RegisterLocalFile(filePath)
// err := db.Exec("LOAD DATA LOCAL INFILE '" + filePath + "' INTO TABLE foo")
// if err != nil {
// ...
//
func RegisterLocalFile(filePath string) {
fileRegisterLock.Lock()
// lazy map init
if fileRegister == nil {
fileRegister = make(map[string]bool)
}
fileRegister[strings.Trim(filePath, `"`)] = true
fileRegisterLock.Unlock()
}
// DeregisterLocalFile removes the given filepath from the whitelist.
func DeregisterLocalFile(filePath string) {
fileRegisterLock.Lock()
delete(fileRegister, strings.Trim(filePath, `"`))
fileRegisterLock.Unlock()
}
// RegisterReaderHandler registers a handler function which is used
// to receive a io.Reader.
// The Reader can be used by "LOAD DATA LOCAL INFILE Reader::<name>".
// If the handler returns a io.ReadCloser Close() is called when the
// request is finished.
//
// mysql.RegisterReaderHandler("data", func() io.Reader {
// var csvReader io.Reader // Some Reader that returns CSV data
// ... // Open Reader here
// return csvReader
// })
// err := db.Exec("LOAD DATA LOCAL INFILE 'Reader::data' INTO TABLE foo")
// if err != nil {
// ...
//
func RegisterReaderHandler(name string, handler func() io.Reader) {
readerRegisterLock.Lock()
// lazy map init
if readerRegister == nil {
readerRegister = make(map[string]func() io.Reader)
}
readerRegister[name] = handler
readerRegisterLock.Unlock()
}
// DeregisterReaderHandler removes the ReaderHandler function with
// the given name from the registry.
func DeregisterReaderHandler(name string) {
readerRegisterLock.Lock()
delete(readerRegister, name)
readerRegisterLock.Unlock()
}
func deferredClose(err *error, closer io.Closer) {
closeErr := closer.Close()
if *err == nil {
*err = closeErr
}
}
func (mc *mysqlConn) handleInFileRequest(name string) (err error) {
var rdr io.Reader
var data []byte
if idx := strings.Index(name, "Reader::"); idx == 0 || (idx > 0 && name[idx-1] == '/') { // io.Reader
// The server might return an an absolute path. See issue #355.
name = name[idx+8:]
readerRegisterLock.RLock()
handler, inMap := readerRegister[name]
readerRegisterLock.RUnlock()
if inMap {
rdr = handler()
if rdr != nil {
data = make([]byte, 4+mc.maxWriteSize)
if cl, ok := rdr.(io.Closer); ok {
defer deferredClose(&err, cl)
}
} else {
err = fmt.Errorf("Reader '%s' is <nil>", name)
}
} else {
err = fmt.Errorf("Reader '%s' is not registered", name)
}
} else { // File
name = strings.Trim(name, `"`)
fileRegisterLock.RLock()
fr := fileRegister[name]
fileRegisterLock.RUnlock()
if mc.cfg.allowAllFiles || fr {
var file *os.File
var fi os.FileInfo
if file, err = os.Open(name); err == nil {
defer deferredClose(&err, file)
// get file size
if fi, err = file.Stat(); err == nil {
rdr = file
if fileSize := int(fi.Size()); fileSize <= mc.maxWriteSize {
data = make([]byte, 4+fileSize)
} else if fileSize <= mc.maxPacketAllowed {
data = make([]byte, 4+mc.maxWriteSize)
} else {
err = fmt.Errorf("Local File '%s' too large: Size: %d, Max: %d", name, fileSize, mc.maxPacketAllowed)
}
}
}
} else {
err = fmt.Errorf("Local File '%s' is not registered. Use the DSN parameter 'allowAllFiles=true' to allow all files", name)
}
}
// send content packets
if err == nil {
var n int
for err == nil {
n, err = rdr.Read(data[4:])
if n > 0 {
if ioErr := mc.writePacket(data[:4+n]); ioErr != nil {
return ioErr
}
}
}
if err == io.EOF {
err = nil
}
}
// send empty packet (termination)
if data == nil {
data = make([]byte, 4)
}
if ioErr := mc.writePacket(data[:4]); ioErr != nil {
return ioErr
}
// read OK packet
if err == nil {
return mc.readResultOK()
} else {
mc.readPacket()
}
return err
}

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vendor/github.com/go-sql-driver/mysql/packets.go generated vendored Normal file
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vendor/github.com/go-sql-driver/mysql/result.go generated vendored Normal file
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// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
type mysqlResult struct {
affectedRows int64
insertId int64
}
func (res *mysqlResult) LastInsertId() (int64, error) {
return res.insertId, nil
}
func (res *mysqlResult) RowsAffected() (int64, error) {
return res.affectedRows, nil
}

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vendor/github.com/go-sql-driver/mysql/rows.go generated vendored Normal file
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// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"database/sql/driver"
"io"
)
type mysqlField struct {
tableName string
name string
flags fieldFlag
fieldType byte
decimals byte
}
type mysqlRows struct {
mc *mysqlConn
columns []mysqlField
}
type binaryRows struct {
mysqlRows
}
type textRows struct {
mysqlRows
}
type emptyRows struct{}
func (rows *mysqlRows) Columns() []string {
columns := make([]string, len(rows.columns))
if rows.mc.cfg.columnsWithAlias {
for i := range columns {
if tableName := rows.columns[i].tableName; len(tableName) > 0 {
columns[i] = tableName + "." + rows.columns[i].name
} else {
columns[i] = rows.columns[i].name
}
}
} else {
for i := range columns {
columns[i] = rows.columns[i].name
}
}
return columns
}
func (rows *mysqlRows) Close() error {
mc := rows.mc
if mc == nil {
return nil
}
if mc.netConn == nil {
return ErrInvalidConn
}
// Remove unread packets from stream
err := mc.readUntilEOF()
rows.mc = nil
return err
}
func (rows *binaryRows) Next(dest []driver.Value) error {
if mc := rows.mc; mc != nil {
if mc.netConn == nil {
return ErrInvalidConn
}
// Fetch next row from stream
return rows.readRow(dest)
}
return io.EOF
}
func (rows *textRows) Next(dest []driver.Value) error {
if mc := rows.mc; mc != nil {
if mc.netConn == nil {
return ErrInvalidConn
}
// Fetch next row from stream
return rows.readRow(dest)
}
return io.EOF
}
func (rows emptyRows) Columns() []string {
return nil
}
func (rows emptyRows) Close() error {
return nil
}
func (rows emptyRows) Next(dest []driver.Value) error {
return io.EOF
}

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vendor/github.com/go-sql-driver/mysql/statement.go generated vendored Normal file
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// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"database/sql/driver"
"fmt"
"reflect"
"strconv"
)
type mysqlStmt struct {
mc *mysqlConn
id uint32
paramCount int
columns []mysqlField // cached from the first query
}
func (stmt *mysqlStmt) Close() error {
if stmt.mc == nil || stmt.mc.netConn == nil {
errLog.Print(ErrInvalidConn)
return driver.ErrBadConn
}
err := stmt.mc.writeCommandPacketUint32(comStmtClose, stmt.id)
stmt.mc = nil
return err
}
func (stmt *mysqlStmt) NumInput() int {
return stmt.paramCount
}
func (stmt *mysqlStmt) ColumnConverter(idx int) driver.ValueConverter {
return converter{}
}
func (stmt *mysqlStmt) Exec(args []driver.Value) (driver.Result, error) {
if stmt.mc.netConn == nil {
errLog.Print(ErrInvalidConn)
return nil, driver.ErrBadConn
}
// Send command
err := stmt.writeExecutePacket(args)
if err != nil {
return nil, err
}
mc := stmt.mc
mc.affectedRows = 0
mc.insertId = 0
// Read Result
resLen, err := mc.readResultSetHeaderPacket()
if err == nil {
if resLen > 0 {
// Columns
err = mc.readUntilEOF()
if err != nil {
return nil, err
}
// Rows
err = mc.readUntilEOF()
}
if err == nil {
return &mysqlResult{
affectedRows: int64(mc.affectedRows),
insertId: int64(mc.insertId),
}, nil
}
}
return nil, err
}
func (stmt *mysqlStmt) Query(args []driver.Value) (driver.Rows, error) {
if stmt.mc.netConn == nil {
errLog.Print(ErrInvalidConn)
return nil, driver.ErrBadConn
}
// Send command
err := stmt.writeExecutePacket(args)
if err != nil {
return nil, err
}
mc := stmt.mc
// Read Result
resLen, err := mc.readResultSetHeaderPacket()
if err != nil {
return nil, err
}
rows := new(binaryRows)
rows.mc = mc
if resLen > 0 {
// Columns
// If not cached, read them and cache them
if stmt.columns == nil {
rows.columns, err = mc.readColumns(resLen)
stmt.columns = rows.columns
} else {
rows.columns = stmt.columns
err = mc.readUntilEOF()
}
}
return rows, err
}
type converter struct{}
func (c converter) ConvertValue(v interface{}) (driver.Value, error) {
if driver.IsValue(v) {
return v, nil
}
rv := reflect.ValueOf(v)
switch rv.Kind() {
case reflect.Ptr:
// indirect pointers
if rv.IsNil() {
return nil, nil
}
return c.ConvertValue(rv.Elem().Interface())
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return rv.Int(), nil
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32:
return int64(rv.Uint()), nil
case reflect.Uint64:
u64 := rv.Uint()
if u64 >= 1<<63 {
return strconv.FormatUint(u64, 10), nil
}
return int64(u64), nil
case reflect.Float32, reflect.Float64:
return rv.Float(), nil
}
return nil, fmt.Errorf("unsupported type %T, a %s", v, rv.Kind())
}

31
vendor/github.com/go-sql-driver/mysql/transaction.go generated vendored Normal file
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@ -0,0 +1,31 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
type mysqlTx struct {
mc *mysqlConn
}
func (tx *mysqlTx) Commit() (err error) {
if tx.mc == nil || tx.mc.netConn == nil {
return ErrInvalidConn
}
err = tx.mc.exec("COMMIT")
tx.mc = nil
return
}
func (tx *mysqlTx) Rollback() (err error) {
if tx.mc == nil || tx.mc.netConn == nil {
return ErrInvalidConn
}
err = tx.mc.exec("ROLLBACK")
tx.mc = nil
return
}

975
vendor/github.com/go-sql-driver/mysql/utils.go generated vendored Normal file
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@ -0,0 +1,975 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"crypto/sha1"
"crypto/tls"
"database/sql/driver"
"encoding/binary"
"errors"
"fmt"
"io"
"net"
"net/url"
"strings"
"time"
)
var (
tlsConfigRegister map[string]*tls.Config // Register for custom tls.Configs
errInvalidDSNUnescaped = errors.New("Invalid DSN: Did you forget to escape a param value?")
errInvalidDSNAddr = errors.New("Invalid DSN: Network Address not terminated (missing closing brace)")
errInvalidDSNNoSlash = errors.New("Invalid DSN: Missing the slash separating the database name")
errInvalidDSNUnsafeCollation = errors.New("Invalid DSN: interpolateParams can be used with ascii, latin1, utf8 and utf8mb4 charset")
)
func init() {
tlsConfigRegister = make(map[string]*tls.Config)
}
// RegisterTLSConfig registers a custom tls.Config to be used with sql.Open.
// Use the key as a value in the DSN where tls=value.
//
// rootCertPool := x509.NewCertPool()
// pem, err := ioutil.ReadFile("/path/ca-cert.pem")
// if err != nil {
// log.Fatal(err)
// }
// if ok := rootCertPool.AppendCertsFromPEM(pem); !ok {
// log.Fatal("Failed to append PEM.")
// }
// clientCert := make([]tls.Certificate, 0, 1)
// certs, err := tls.LoadX509KeyPair("/path/client-cert.pem", "/path/client-key.pem")
// if err != nil {
// log.Fatal(err)
// }
// clientCert = append(clientCert, certs)
// mysql.RegisterTLSConfig("custom", &tls.Config{
// RootCAs: rootCertPool,
// Certificates: clientCert,
// })
// db, err := sql.Open("mysql", "user@tcp(localhost:3306)/test?tls=custom")
//
func RegisterTLSConfig(key string, config *tls.Config) error {
if _, isBool := readBool(key); isBool || strings.ToLower(key) == "skip-verify" {
return fmt.Errorf("Key '%s' is reserved", key)
}
tlsConfigRegister[key] = config
return nil
}
// DeregisterTLSConfig removes the tls.Config associated with key.
func DeregisterTLSConfig(key string) {
delete(tlsConfigRegister, key)
}
// parseDSN parses the DSN string to a config
func parseDSN(dsn string) (cfg *config, err error) {
// New config with some default values
cfg = &config{
loc: time.UTC,
collation: defaultCollation,
}
// [user[:password]@][net[(addr)]]/dbname[?param1=value1&paramN=valueN]
// Find the last '/' (since the password or the net addr might contain a '/')
foundSlash := false
for i := len(dsn) - 1; i >= 0; i-- {
if dsn[i] == '/' {
foundSlash = true
var j, k int
// left part is empty if i <= 0
if i > 0 {
// [username[:password]@][protocol[(address)]]
// Find the last '@' in dsn[:i]
for j = i; j >= 0; j-- {
if dsn[j] == '@' {
// username[:password]
// Find the first ':' in dsn[:j]
for k = 0; k < j; k++ {
if dsn[k] == ':' {
cfg.passwd = dsn[k+1 : j]
break
}
}
cfg.user = dsn[:k]
break
}
}
// [protocol[(address)]]
// Find the first '(' in dsn[j+1:i]
for k = j + 1; k < i; k++ {
if dsn[k] == '(' {
// dsn[i-1] must be == ')' if an address is specified
if dsn[i-1] != ')' {
if strings.ContainsRune(dsn[k+1:i], ')') {
return nil, errInvalidDSNUnescaped
}
return nil, errInvalidDSNAddr
}
cfg.addr = dsn[k+1 : i-1]
break
}
}
cfg.net = dsn[j+1 : k]
}
// dbname[?param1=value1&...&paramN=valueN]
// Find the first '?' in dsn[i+1:]
for j = i + 1; j < len(dsn); j++ {
if dsn[j] == '?' {
if err = parseDSNParams(cfg, dsn[j+1:]); err != nil {
return
}
break
}
}
cfg.dbname = dsn[i+1 : j]
break
}
}
if !foundSlash && len(dsn) > 0 {
return nil, errInvalidDSNNoSlash
}
if cfg.interpolateParams && unsafeCollations[cfg.collation] {
return nil, errInvalidDSNUnsafeCollation
}
// Set default network if empty
if cfg.net == "" {
cfg.net = "tcp"
}
// Set default address if empty
if cfg.addr == "" {
switch cfg.net {
case "tcp":
cfg.addr = "127.0.0.1:3306"
case "unix":
cfg.addr = "/tmp/mysql.sock"
default:
return nil, errors.New("Default addr for network '" + cfg.net + "' unknown")
}
}
return
}
// parseDSNParams parses the DSN "query string"
// Values must be url.QueryEscape'ed
func parseDSNParams(cfg *config, params string) (err error) {
for _, v := range strings.Split(params, "&") {
param := strings.SplitN(v, "=", 2)
if len(param) != 2 {
continue
}
// cfg params
switch value := param[1]; param[0] {
// Enable client side placeholder substitution
case "interpolateParams":
var isBool bool
cfg.interpolateParams, isBool = readBool(value)
if !isBool {
return fmt.Errorf("Invalid Bool value: %s", value)
}
// Disable INFILE whitelist / enable all files
case "allowAllFiles":
var isBool bool
cfg.allowAllFiles, isBool = readBool(value)
if !isBool {
return fmt.Errorf("Invalid Bool value: %s", value)
}
// Use cleartext authentication mode (MySQL 5.5.10+)
case "allowCleartextPasswords":
var isBool bool
cfg.allowCleartextPasswords, isBool = readBool(value)
if !isBool {
return fmt.Errorf("Invalid Bool value: %s", value)
}
// Use old authentication mode (pre MySQL 4.1)
case "allowOldPasswords":
var isBool bool
cfg.allowOldPasswords, isBool = readBool(value)
if !isBool {
return fmt.Errorf("Invalid Bool value: %s", value)
}
// Switch "rowsAffected" mode
case "clientFoundRows":
var isBool bool
cfg.clientFoundRows, isBool = readBool(value)
if !isBool {
return fmt.Errorf("Invalid Bool value: %s", value)
}
// Collation
case "collation":
collation, ok := collations[value]
if !ok {
// Note possibility for false negatives:
// could be triggered although the collation is valid if the
// collations map does not contain entries the server supports.
err = errors.New("unknown collation")
return
}
cfg.collation = collation
break
case "columnsWithAlias":
var isBool bool
cfg.columnsWithAlias, isBool = readBool(value)
if !isBool {
return fmt.Errorf("Invalid Bool value: %s", value)
}
// Time Location
case "loc":
if value, err = url.QueryUnescape(value); err != nil {
return
}
cfg.loc, err = time.LoadLocation(value)
if err != nil {
return
}
// Dial Timeout
case "timeout":
cfg.timeout, err = time.ParseDuration(value)
if err != nil {
return
}
// TLS-Encryption
case "tls":
boolValue, isBool := readBool(value)
if isBool {
if boolValue {
cfg.tls = &tls.Config{}
}
} else if value, err := url.QueryUnescape(value); err != nil {
return fmt.Errorf("Invalid value for tls config name: %v", err)
} else {
if strings.ToLower(value) == "skip-verify" {
cfg.tls = &tls.Config{InsecureSkipVerify: true}
} else if tlsConfig, ok := tlsConfigRegister[value]; ok {
if len(tlsConfig.ServerName) == 0 && !tlsConfig.InsecureSkipVerify {
host, _, err := net.SplitHostPort(cfg.addr)
if err == nil {
tlsConfig.ServerName = host
}
}
cfg.tls = tlsConfig
} else {
return fmt.Errorf("Invalid value / unknown config name: %s", value)
}
}
default:
// lazy init
if cfg.params == nil {
cfg.params = make(map[string]string)
}
if cfg.params[param[0]], err = url.QueryUnescape(value); err != nil {
return
}
}
}
return
}
// Returns the bool value of the input.
// The 2nd return value indicates if the input was a valid bool value
func readBool(input string) (value bool, valid bool) {
switch input {
case "1", "true", "TRUE", "True":
return true, true
case "0", "false", "FALSE", "False":
return false, true
}
// Not a valid bool value
return
}
/******************************************************************************
* Authentication *
******************************************************************************/
// Encrypt password using 4.1+ method
func scramblePassword(scramble, password []byte) []byte {
if len(password) == 0 {
return nil
}
// stage1Hash = SHA1(password)
crypt := sha1.New()
crypt.Write(password)
stage1 := crypt.Sum(nil)
// scrambleHash = SHA1(scramble + SHA1(stage1Hash))
// inner Hash
crypt.Reset()
crypt.Write(stage1)
hash := crypt.Sum(nil)
// outer Hash
crypt.Reset()
crypt.Write(scramble)
crypt.Write(hash)
scramble = crypt.Sum(nil)
// token = scrambleHash XOR stage1Hash
for i := range scramble {
scramble[i] ^= stage1[i]
}
return scramble
}
// Encrypt password using pre 4.1 (old password) method
// https://github.com/atcurtis/mariadb/blob/master/mysys/my_rnd.c
type myRnd struct {
seed1, seed2 uint32
}
const myRndMaxVal = 0x3FFFFFFF
// Pseudo random number generator
func newMyRnd(seed1, seed2 uint32) *myRnd {
return &myRnd{
seed1: seed1 % myRndMaxVal,
seed2: seed2 % myRndMaxVal,
}
}
// Tested to be equivalent to MariaDB's floating point variant
// http://play.golang.org/p/QHvhd4qved
// http://play.golang.org/p/RG0q4ElWDx
func (r *myRnd) NextByte() byte {
r.seed1 = (r.seed1*3 + r.seed2) % myRndMaxVal
r.seed2 = (r.seed1 + r.seed2 + 33) % myRndMaxVal
return byte(uint64(r.seed1) * 31 / myRndMaxVal)
}
// Generate binary hash from byte string using insecure pre 4.1 method
func pwHash(password []byte) (result [2]uint32) {
var add uint32 = 7
var tmp uint32
result[0] = 1345345333
result[1] = 0x12345671
for _, c := range password {
// skip spaces and tabs in password
if c == ' ' || c == '\t' {
continue
}
tmp = uint32(c)
result[0] ^= (((result[0] & 63) + add) * tmp) + (result[0] << 8)
result[1] += (result[1] << 8) ^ result[0]
add += tmp
}
// Remove sign bit (1<<31)-1)
result[0] &= 0x7FFFFFFF
result[1] &= 0x7FFFFFFF
return
}
// Encrypt password using insecure pre 4.1 method
func scrambleOldPassword(scramble, password []byte) []byte {
if len(password) == 0 {
return nil
}
scramble = scramble[:8]
hashPw := pwHash(password)
hashSc := pwHash(scramble)
r := newMyRnd(hashPw[0]^hashSc[0], hashPw[1]^hashSc[1])
var out [8]byte
for i := range out {
out[i] = r.NextByte() + 64
}
mask := r.NextByte()
for i := range out {
out[i] ^= mask
}
return out[:]
}
/******************************************************************************
* Time related utils *
******************************************************************************/
// NullTime represents a time.Time that may be NULL.
// NullTime implements the Scanner interface so
// it can be used as a scan destination:
//
// var nt NullTime
// err := db.QueryRow("SELECT time FROM foo WHERE id=?", id).Scan(&nt)
// ...
// if nt.Valid {
// // use nt.Time
// } else {
// // NULL value
// }
//
// This NullTime implementation is not driver-specific
type NullTime struct {
Time time.Time
Valid bool // Valid is true if Time is not NULL
}
// Scan implements the Scanner interface.
// The value type must be time.Time or string / []byte (formatted time-string),
// otherwise Scan fails.
func (nt *NullTime) Scan(value interface{}) (err error) {
if value == nil {
nt.Time, nt.Valid = time.Time{}, false
return
}
switch v := value.(type) {
case time.Time:
nt.Time, nt.Valid = v, true
return
case []byte:
nt.Time, err = parseDateTime(string(v), time.UTC)
nt.Valid = (err == nil)
return
case string:
nt.Time, err = parseDateTime(v, time.UTC)
nt.Valid = (err == nil)
return
}
nt.Valid = false
return fmt.Errorf("Can't convert %T to time.Time", value)
}
// Value implements the driver Valuer interface.
func (nt NullTime) Value() (driver.Value, error) {
if !nt.Valid {
return nil, nil
}
return nt.Time, nil
}
func parseDateTime(str string, loc *time.Location) (t time.Time, err error) {
base := "0000-00-00 00:00:00.0000000"
switch len(str) {
case 10, 19, 21, 22, 23, 24, 25, 26: // up to "YYYY-MM-DD HH:MM:SS.MMMMMM"
if str == base[:len(str)] {
return
}
t, err = time.Parse(timeFormat[:len(str)], str)
default:
err = fmt.Errorf("Invalid Time-String: %s", str)
return
}
// Adjust location
if err == nil && loc != time.UTC {
y, mo, d := t.Date()
h, mi, s := t.Clock()
t, err = time.Date(y, mo, d, h, mi, s, t.Nanosecond(), loc), nil
}
return
}
func parseBinaryDateTime(num uint64, data []byte, loc *time.Location) (driver.Value, error) {
switch num {
case 0:
return time.Time{}, nil
case 4:
return time.Date(
int(binary.LittleEndian.Uint16(data[:2])), // year
time.Month(data[2]), // month
int(data[3]), // day
0, 0, 0, 0,
loc,
), nil
case 7:
return time.Date(
int(binary.LittleEndian.Uint16(data[:2])), // year
time.Month(data[2]), // month
int(data[3]), // day
int(data[4]), // hour
int(data[5]), // minutes
int(data[6]), // seconds
0,
loc,
), nil
case 11:
return time.Date(
int(binary.LittleEndian.Uint16(data[:2])), // year
time.Month(data[2]), // month
int(data[3]), // day
int(data[4]), // hour
int(data[5]), // minutes
int(data[6]), // seconds
int(binary.LittleEndian.Uint32(data[7:11]))*1000, // nanoseconds
loc,
), nil
}
return nil, fmt.Errorf("Invalid DATETIME-packet length %d", num)
}
// zeroDateTime is used in formatBinaryDateTime to avoid an allocation
// if the DATE or DATETIME has the zero value.
// It must never be changed.
// The current behavior depends on database/sql copying the result.
var zeroDateTime = []byte("0000-00-00 00:00:00.000000")
const digits01 = "0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789"
const digits10 = "0000000000111111111122222222223333333333444444444455555555556666666666777777777788888888889999999999"
func formatBinaryDateTime(src []byte, length uint8, justTime bool) (driver.Value, error) {
// length expects the deterministic length of the zero value,
// negative time and 100+ hours are automatically added if needed
if len(src) == 0 {
if justTime {
return zeroDateTime[11 : 11+length], nil
}
return zeroDateTime[:length], nil
}
var dst []byte // return value
var pt, p1, p2, p3 byte // current digit pair
var zOffs byte // offset of value in zeroDateTime
if justTime {
switch length {
case
8, // time (can be up to 10 when negative and 100+ hours)
10, 11, 12, 13, 14, 15: // time with fractional seconds
default:
return nil, fmt.Errorf("illegal TIME length %d", length)
}
switch len(src) {
case 8, 12:
default:
return nil, fmt.Errorf("Invalid TIME-packet length %d", len(src))
}
// +2 to enable negative time and 100+ hours
dst = make([]byte, 0, length+2)
if src[0] == 1 {
dst = append(dst, '-')
}
if src[1] != 0 {
hour := uint16(src[1])*24 + uint16(src[5])
pt = byte(hour / 100)
p1 = byte(hour - 100*uint16(pt))
dst = append(dst, digits01[pt])
} else {
p1 = src[5]
}
zOffs = 11
src = src[6:]
} else {
switch length {
case 10, 19, 21, 22, 23, 24, 25, 26:
default:
t := "DATE"
if length > 10 {
t += "TIME"
}
return nil, fmt.Errorf("illegal %s length %d", t, length)
}
switch len(src) {
case 4, 7, 11:
default:
t := "DATE"
if length > 10 {
t += "TIME"
}
return nil, fmt.Errorf("illegal %s-packet length %d", t, len(src))
}
dst = make([]byte, 0, length)
// start with the date
year := binary.LittleEndian.Uint16(src[:2])
pt = byte(year / 100)
p1 = byte(year - 100*uint16(pt))
p2, p3 = src[2], src[3]
dst = append(dst,
digits10[pt], digits01[pt],
digits10[p1], digits01[p1], '-',
digits10[p2], digits01[p2], '-',
digits10[p3], digits01[p3],
)
if length == 10 {
return dst, nil
}
if len(src) == 4 {
return append(dst, zeroDateTime[10:length]...), nil
}
dst = append(dst, ' ')
p1 = src[4] // hour
src = src[5:]
}
// p1 is 2-digit hour, src is after hour
p2, p3 = src[0], src[1]
dst = append(dst,
digits10[p1], digits01[p1], ':',
digits10[p2], digits01[p2], ':',
digits10[p3], digits01[p3],
)
if length <= byte(len(dst)) {
return dst, nil
}
src = src[2:]
if len(src) == 0 {
return append(dst, zeroDateTime[19:zOffs+length]...), nil
}
microsecs := binary.LittleEndian.Uint32(src[:4])
p1 = byte(microsecs / 10000)
microsecs -= 10000 * uint32(p1)
p2 = byte(microsecs / 100)
microsecs -= 100 * uint32(p2)
p3 = byte(microsecs)
switch decimals := zOffs + length - 20; decimals {
default:
return append(dst, '.',
digits10[p1], digits01[p1],
digits10[p2], digits01[p2],
digits10[p3], digits01[p3],
), nil
case 1:
return append(dst, '.',
digits10[p1],
), nil
case 2:
return append(dst, '.',
digits10[p1], digits01[p1],
), nil
case 3:
return append(dst, '.',
digits10[p1], digits01[p1],
digits10[p2],
), nil
case 4:
return append(dst, '.',
digits10[p1], digits01[p1],
digits10[p2], digits01[p2],
), nil
case 5:
return append(dst, '.',
digits10[p1], digits01[p1],
digits10[p2], digits01[p2],
digits10[p3],
), nil
}
}
/******************************************************************************
* Convert from and to bytes *
******************************************************************************/
func uint64ToBytes(n uint64) []byte {
return []byte{
byte(n),
byte(n >> 8),
byte(n >> 16),
byte(n >> 24),
byte(n >> 32),
byte(n >> 40),
byte(n >> 48),
byte(n >> 56),
}
}
func uint64ToString(n uint64) []byte {
var a [20]byte
i := 20
// U+0030 = 0
// ...
// U+0039 = 9
var q uint64
for n >= 10 {
i--
q = n / 10
a[i] = uint8(n-q*10) + 0x30
n = q
}
i--
a[i] = uint8(n) + 0x30
return a[i:]
}
// treats string value as unsigned integer representation
func stringToInt(b []byte) int {
val := 0
for i := range b {
val *= 10
val += int(b[i] - 0x30)
}
return val
}
// returns the string read as a bytes slice, wheter the value is NULL,
// the number of bytes read and an error, in case the string is longer than
// the input slice
func readLengthEncodedString(b []byte) ([]byte, bool, int, error) {
// Get length
num, isNull, n := readLengthEncodedInteger(b)
if num < 1 {
return b[n:n], isNull, n, nil
}
n += int(num)
// Check data length
if len(b) >= n {
return b[n-int(num) : n], false, n, nil
}
return nil, false, n, io.EOF
}
// returns the number of bytes skipped and an error, in case the string is
// longer than the input slice
func skipLengthEncodedString(b []byte) (int, error) {
// Get length
num, _, n := readLengthEncodedInteger(b)
if num < 1 {
return n, nil
}
n += int(num)
// Check data length
if len(b) >= n {
return n, nil
}
return n, io.EOF
}
// returns the number read, whether the value is NULL and the number of bytes read
func readLengthEncodedInteger(b []byte) (uint64, bool, int) {
// See issue #349
if len(b) == 0 {
return 0, true, 1
}
switch b[0] {
// 251: NULL
case 0xfb:
return 0, true, 1
// 252: value of following 2
case 0xfc:
return uint64(b[1]) | uint64(b[2])<<8, false, 3
// 253: value of following 3
case 0xfd:
return uint64(b[1]) | uint64(b[2])<<8 | uint64(b[3])<<16, false, 4
// 254: value of following 8
case 0xfe:
return uint64(b[1]) | uint64(b[2])<<8 | uint64(b[3])<<16 |
uint64(b[4])<<24 | uint64(b[5])<<32 | uint64(b[6])<<40 |
uint64(b[7])<<48 | uint64(b[8])<<56,
false, 9
}
// 0-250: value of first byte
return uint64(b[0]), false, 1
}
// encodes a uint64 value and appends it to the given bytes slice
func appendLengthEncodedInteger(b []byte, n uint64) []byte {
switch {
case n <= 250:
return append(b, byte(n))
case n <= 0xffff:
return append(b, 0xfc, byte(n), byte(n>>8))
case n <= 0xffffff:
return append(b, 0xfd, byte(n), byte(n>>8), byte(n>>16))
}
return append(b, 0xfe, byte(n), byte(n>>8), byte(n>>16), byte(n>>24),
byte(n>>32), byte(n>>40), byte(n>>48), byte(n>>56))
}
// reserveBuffer checks cap(buf) and expand buffer to len(buf) + appendSize.
// If cap(buf) is not enough, reallocate new buffer.
func reserveBuffer(buf []byte, appendSize int) []byte {
newSize := len(buf) + appendSize
if cap(buf) < newSize {
// Grow buffer exponentially
newBuf := make([]byte, len(buf)*2+appendSize)
copy(newBuf, buf)
buf = newBuf
}
return buf[:newSize]
}
// escapeBytesBackslash escapes []byte with backslashes (\)
// This escapes the contents of a string (provided as []byte) by adding backslashes before special
// characters, and turning others into specific escape sequences, such as
// turning newlines into \n and null bytes into \0.
// https://github.com/mysql/mysql-server/blob/mysql-5.7.5/mysys/charset.c#L823-L932
func escapeBytesBackslash(buf, v []byte) []byte {
pos := len(buf)
buf = reserveBuffer(buf, len(v)*2)
for _, c := range v {
switch c {
case '\x00':
buf[pos] = '\\'
buf[pos+1] = '0'
pos += 2
case '\n':
buf[pos] = '\\'
buf[pos+1] = 'n'
pos += 2
case '\r':
buf[pos] = '\\'
buf[pos+1] = 'r'
pos += 2
case '\x1a':
buf[pos] = '\\'
buf[pos+1] = 'Z'
pos += 2
case '\'':
buf[pos] = '\\'
buf[pos+1] = '\''
pos += 2
case '"':
buf[pos] = '\\'
buf[pos+1] = '"'
pos += 2
case '\\':
buf[pos] = '\\'
buf[pos+1] = '\\'
pos += 2
default:
buf[pos] = c
pos += 1
}
}
return buf[:pos]
}
// escapeStringBackslash is similar to escapeBytesBackslash but for string.
func escapeStringBackslash(buf []byte, v string) []byte {
pos := len(buf)
buf = reserveBuffer(buf, len(v)*2)
for i := 0; i < len(v); i++ {
c := v[i]
switch c {
case '\x00':
buf[pos] = '\\'
buf[pos+1] = '0'
pos += 2
case '\n':
buf[pos] = '\\'
buf[pos+1] = 'n'
pos += 2
case '\r':
buf[pos] = '\\'
buf[pos+1] = 'r'
pos += 2
case '\x1a':
buf[pos] = '\\'
buf[pos+1] = 'Z'
pos += 2
case '\'':
buf[pos] = '\\'
buf[pos+1] = '\''
pos += 2
case '"':
buf[pos] = '\\'
buf[pos+1] = '"'
pos += 2
case '\\':
buf[pos] = '\\'
buf[pos+1] = '\\'
pos += 2
default:
buf[pos] = c
pos += 1
}
}
return buf[:pos]
}
// escapeBytesQuotes escapes apostrophes in []byte by doubling them up.
// This escapes the contents of a string by doubling up any apostrophes that
// it contains. This is used when the NO_BACKSLASH_ESCAPES SQL_MODE is in
// effect on the server.
// https://github.com/mysql/mysql-server/blob/mysql-5.7.5/mysys/charset.c#L963-L1038
func escapeBytesQuotes(buf, v []byte) []byte {
pos := len(buf)
buf = reserveBuffer(buf, len(v)*2)
for _, c := range v {
if c == '\'' {
buf[pos] = '\''
buf[pos+1] = '\''
pos += 2
} else {
buf[pos] = c
pos++
}
}
return buf[:pos]
}
// escapeStringQuotes is similar to escapeBytesQuotes but for string.
func escapeStringQuotes(buf []byte, v string) []byte {
pos := len(buf)
buf = reserveBuffer(buf, len(v)*2)
for i := 0; i < len(v); i++ {
c := v[i]
if c == '\'' {
buf[pos] = '\''
buf[pos+1] = '\''
pos += 2
} else {
buf[pos] = c
pos++
}
}
return buf[:pos]
}

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# Names should be added to this file as
# Name or Organization <email address>
# The email address is not required for organizations.
# You can update this list using the following command:
#
# $ git shortlog -se | awk '{print $2 " " $3 " " $4}'
# Please keep the list sorted.
Adrien Bustany <adrien@bustany.org>
Caleb Spare <cespare@gmail.com>
Case Nelson <case@teammating.com>
Chris Howey <howeyc@gmail.com> <chris@howey.me>
Christoffer Buchholz <christoffer.buchholz@gmail.com>
Dave Cheney <dave@cheney.net>
Francisco Souza <f@souza.cc>
John C Barstow
Kelvin Fo <vmirage@gmail.com>
Nathan Youngman <git@nathany.com>
Paul Hammond <paul@paulhammond.org>
Pursuit92 <JoshChase@techpursuit.net>
Rob Figueiredo <robfig@gmail.com>
Travis Cline <travis.cline@gmail.com>
Tudor Golubenco <tudor.g@gmail.com>
bronze1man <bronze1man@gmail.com>
debrando <denis.brandolini@gmail.com>
henrikedwards <henrik.edwards@gmail.com>

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# Changelog
## v0.9.0 / 2014-01-17
* IsAttrib() for events that only concern a file's metadata [#79][] (thanks @abustany)
* [Fix] kqueue: fix deadlock [#77][] (thanks @cespare)
* [NOTICE] Development has moved to `code.google.com/p/go.exp/fsnotify` in preparation for inclusion in the Go standard library.
## v0.8.12 / 2013-11-13
* [API] Remove FD_SET and friends from Linux adapter
## v0.8.11 / 2013-11-02
* [Doc] Add Changelog [#72][] (thanks @nathany)
* [Doc] Spotlight and double modify events on OS X [#62][] (reported by @paulhammond)
## v0.8.10 / 2013-10-19
* [Fix] kqueue: remove file watches when parent directory is removed [#71][] (reported by @mdwhatcott)
* [Fix] kqueue: race between Close and readEvents [#70][] (reported by @bernerdschaefer)
* [Doc] specify OS-specific limits in README (thanks @debrando)
## v0.8.9 / 2013-09-08
* [Doc] Contributing (thanks @nathany)
* [Doc] update package path in example code [#63][] (thanks @paulhammond)
* [Doc] GoCI badge in README (Linux only) [#60][]
* [Doc] Cross-platform testing with Vagrant [#59][] (thanks @nathany)
## v0.8.8 / 2013-06-17
* [Fix] Windows: handle `ERROR_MORE_DATA` on Windows [#49][] (thanks @jbowtie)
## v0.8.7 / 2013-06-03
* [API] Make syscall flags internal
* [Fix] inotify: ignore event changes
* [Fix] race in symlink test [#45][] (reported by @srid)
* [Fix] tests on Windows
* lower case error messages
## v0.8.6 / 2013-05-23
* kqueue: Use EVT_ONLY flag on Darwin
* [Doc] Update README with full example
## v0.8.5 / 2013-05-09
* [Fix] inotify: allow monitoring of "broken" symlinks (thanks @tsg)
## v0.8.4 / 2013-04-07
* [Fix] kqueue: watch all file events [#40][] (thanks @ChrisBuchholz)
## v0.8.3 / 2013-03-13
* [Fix] inoitfy/kqueue memory leak [#36][] (reported by @nbkolchin)
* [Fix] kqueue: use fsnFlags for watching a directory [#33][] (reported by @nbkolchin)
## v0.8.2 / 2013-02-07
* [Doc] add Authors
* [Fix] fix data races for map access [#29][] (thanks @fsouza)
## v0.8.1 / 2013-01-09
* [Fix] Windows path separators
* [Doc] BSD License
## v0.8.0 / 2012-11-09
* kqueue: directory watching improvements (thanks @vmirage)
* inotify: add `IN_MOVED_TO` [#25][] (requested by @cpisto)
* [Fix] kqueue: deleting watched directory [#24][] (reported by @jakerr)
## v0.7.4 / 2012-10-09
* [Fix] inotify: fixes from https://codereview.appspot.com/5418045/ (ugorji)
* [Fix] kqueue: preserve watch flags when watching for delete [#21][] (reported by @robfig)
* [Fix] kqueue: watch the directory even if it isn't a new watch (thanks @robfig)
* [Fix] kqueue: modify after recreation of file
## v0.7.3 / 2012-09-27
* [Fix] kqueue: watch with an existing folder inside the watched folder (thanks @vmirage)
* [Fix] kqueue: no longer get duplicate CREATE events
## v0.7.2 / 2012-09-01
* kqueue: events for created directories
## v0.7.1 / 2012-07-14
* [Fix] for renaming files
## v0.7.0 / 2012-07-02
* [Feature] FSNotify flags
* [Fix] inotify: Added file name back to event path
## v0.6.0 / 2012-06-06
* kqueue: watch files after directory created (thanks @tmc)
## v0.5.1 / 2012-05-22
* [Fix] inotify: remove all watches before Close()
## v0.5.0 / 2012-05-03
* [API] kqueue: return errors during watch instead of sending over channel
* kqueue: match symlink behavior on Linux
* inotify: add `DELETE_SELF` (requested by @taralx)
* [Fix] kqueue: handle EINTR (reported by @robfig)
* [Doc] Godoc example [#1][] (thanks @davecheney)
## v0.4.0 / 2012-03-30
* Go 1 released: build with go tool
* [Feature] Windows support using winfsnotify
* Windows does not have attribute change notifications
* Roll attribute notifications into IsModify
## v0.3.0 / 2012-02-19
* kqueue: add files when watch directory
## v0.2.0 / 2011-12-30
* update to latest Go weekly code
## v0.1.0 / 2011-10-19
* kqueue: add watch on file creation to match inotify
* kqueue: create file event
* inotify: ignore `IN_IGNORED` events
* event String()
* linux: common FileEvent functions
* initial commit
[#79]: https://github.com/howeyc/fsnotify/pull/79
[#77]: https://github.com/howeyc/fsnotify/pull/77
[#72]: https://github.com/howeyc/fsnotify/issues/72
[#71]: https://github.com/howeyc/fsnotify/issues/71
[#70]: https://github.com/howeyc/fsnotify/issues/70
[#63]: https://github.com/howeyc/fsnotify/issues/63
[#62]: https://github.com/howeyc/fsnotify/issues/62
[#60]: https://github.com/howeyc/fsnotify/issues/60
[#59]: https://github.com/howeyc/fsnotify/issues/59
[#49]: https://github.com/howeyc/fsnotify/issues/49
[#45]: https://github.com/howeyc/fsnotify/issues/45
[#40]: https://github.com/howeyc/fsnotify/issues/40
[#36]: https://github.com/howeyc/fsnotify/issues/36
[#33]: https://github.com/howeyc/fsnotify/issues/33
[#29]: https://github.com/howeyc/fsnotify/issues/29
[#25]: https://github.com/howeyc/fsnotify/issues/25
[#24]: https://github.com/howeyc/fsnotify/issues/24
[#21]: https://github.com/howeyc/fsnotify/issues/21
[#1]: https://github.com/howeyc/fsnotify/issues/1

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# Contributing
## Moving Notice
There is a fork being actively developed with a new API in preparation for the Go Standard Library:
[github.com/go-fsnotify/fsnotify](https://github.com/go-fsnotify/fsnotify)

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Copyright (c) 2012 The Go Authors. All rights reserved.
Copyright (c) 2012 fsnotify Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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# File system notifications for Go
[![GoDoc](https://godoc.org/github.com/howeyc/fsnotify?status.png)](http://godoc.org/github.com/howeyc/fsnotify)
Cross platform: Windows, Linux, BSD and OS X.
## Moving Notice
There is a fork being actively developed with a new API in preparation for the Go Standard Library:
[github.com/go-fsnotify/fsnotify](https://github.com/go-fsnotify/fsnotify)
## Example:
```go
package main
import (
"log"
"github.com/howeyc/fsnotify"
)
func main() {
watcher, err := fsnotify.NewWatcher()
if err != nil {
log.Fatal(err)
}
done := make(chan bool)
// Process events
go func() {
for {
select {
case ev := <-watcher.Event:
log.Println("event:", ev)
case err := <-watcher.Error:
log.Println("error:", err)
}
}
}()
err = watcher.Watch("testDir")
if err != nil {
log.Fatal(err)
}
// Hang so program doesn't exit
<-done
/* ... do stuff ... */
watcher.Close()
}
```
For each event:
* Name
* IsCreate()
* IsDelete()
* IsModify()
* IsRename()
## FAQ
**When a file is moved to another directory is it still being watched?**
No (it shouldn't be, unless you are watching where it was moved to).
**When I watch a directory, are all subdirectories watched as well?**
No, you must add watches for any directory you want to watch (a recursive watcher is in the works [#56][]).
**Do I have to watch the Error and Event channels in a separate goroutine?**
As of now, yes. Looking into making this single-thread friendly (see [#7][])
**Why am I receiving multiple events for the same file on OS X?**
Spotlight indexing on OS X can result in multiple events (see [#62][]). A temporary workaround is to add your folder(s) to the *Spotlight Privacy settings* until we have a native FSEvents implementation (see [#54][]).
**How many files can be watched at once?**
There are OS-specific limits as to how many watches can be created:
* Linux: /proc/sys/fs/inotify/max_user_watches contains the limit,
reaching this limit results in a "no space left on device" error.
* BSD / OSX: sysctl variables "kern.maxfiles" and "kern.maxfilesperproc", reaching these limits results in a "too many open files" error.
[#62]: https://github.com/howeyc/fsnotify/issues/62
[#56]: https://github.com/howeyc/fsnotify/issues/56
[#54]: https://github.com/howeyc/fsnotify/issues/54
[#7]: https://github.com/howeyc/fsnotify/issues/7

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// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package fsnotify implements file system notification.
package fsnotify
import "fmt"
const (
FSN_CREATE = 1
FSN_MODIFY = 2
FSN_DELETE = 4
FSN_RENAME = 8
FSN_ALL = FSN_MODIFY | FSN_DELETE | FSN_RENAME | FSN_CREATE
)
// Purge events from interal chan to external chan if passes filter
func (w *Watcher) purgeEvents() {
for ev := range w.internalEvent {
sendEvent := false
w.fsnmut.Lock()
fsnFlags := w.fsnFlags[ev.Name]
w.fsnmut.Unlock()
if (fsnFlags&FSN_CREATE == FSN_CREATE) && ev.IsCreate() {
sendEvent = true
}
if (fsnFlags&FSN_MODIFY == FSN_MODIFY) && ev.IsModify() {
sendEvent = true
}
if (fsnFlags&FSN_DELETE == FSN_DELETE) && ev.IsDelete() {
sendEvent = true
}
if (fsnFlags&FSN_RENAME == FSN_RENAME) && ev.IsRename() {
sendEvent = true
}
if sendEvent {
w.Event <- ev
}
// If there's no file, then no more events for user
// BSD must keep watch for internal use (watches DELETEs to keep track
// what files exist for create events)
if ev.IsDelete() {
w.fsnmut.Lock()
delete(w.fsnFlags, ev.Name)
w.fsnmut.Unlock()
}
}
close(w.Event)
}
// Watch a given file path
func (w *Watcher) Watch(path string) error {
return w.WatchFlags(path, FSN_ALL)
}
// Watch a given file path for a particular set of notifications (FSN_MODIFY etc.)
func (w *Watcher) WatchFlags(path string, flags uint32) error {
w.fsnmut.Lock()
w.fsnFlags[path] = flags
w.fsnmut.Unlock()
return w.watch(path)
}
// Remove a watch on a file
func (w *Watcher) RemoveWatch(path string) error {
w.fsnmut.Lock()
delete(w.fsnFlags, path)
w.fsnmut.Unlock()
return w.removeWatch(path)
}
// String formats the event e in the form
// "filename: DELETE|MODIFY|..."
func (e *FileEvent) String() string {
var events string = ""
if e.IsCreate() {
events += "|" + "CREATE"
}
if e.IsDelete() {
events += "|" + "DELETE"
}
if e.IsModify() {
events += "|" + "MODIFY"
}
if e.IsRename() {
events += "|" + "RENAME"
}
if e.IsAttrib() {
events += "|" + "ATTRIB"
}
if len(events) > 0 {
events = events[1:]
}
return fmt.Sprintf("%q: %s", e.Name, events)
}

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// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build freebsd openbsd netbsd dragonfly darwin
package fsnotify
import (
"errors"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"sync"
"syscall"
)
const (
// Flags (from <sys/event.h>)
sys_NOTE_DELETE = 0x0001 /* vnode was removed */
sys_NOTE_WRITE = 0x0002 /* data contents changed */
sys_NOTE_EXTEND = 0x0004 /* size increased */
sys_NOTE_ATTRIB = 0x0008 /* attributes changed */
sys_NOTE_LINK = 0x0010 /* link count changed */
sys_NOTE_RENAME = 0x0020 /* vnode was renamed */
sys_NOTE_REVOKE = 0x0040 /* vnode access was revoked */
// Watch all events
sys_NOTE_ALLEVENTS = sys_NOTE_DELETE | sys_NOTE_WRITE | sys_NOTE_ATTRIB | sys_NOTE_RENAME
// Block for 100 ms on each call to kevent
keventWaitTime = 100e6
)
type FileEvent struct {
mask uint32 // Mask of events
Name string // File name (optional)
create bool // set by fsnotify package if found new file
}
// IsCreate reports whether the FileEvent was triggered by a creation
func (e *FileEvent) IsCreate() bool { return e.create }
// IsDelete reports whether the FileEvent was triggered by a delete
func (e *FileEvent) IsDelete() bool { return (e.mask & sys_NOTE_DELETE) == sys_NOTE_DELETE }
// IsModify reports whether the FileEvent was triggered by a file modification
func (e *FileEvent) IsModify() bool {
return ((e.mask&sys_NOTE_WRITE) == sys_NOTE_WRITE || (e.mask&sys_NOTE_ATTRIB) == sys_NOTE_ATTRIB)
}
// IsRename reports whether the FileEvent was triggered by a change name
func (e *FileEvent) IsRename() bool { return (e.mask & sys_NOTE_RENAME) == sys_NOTE_RENAME }
// IsAttrib reports whether the FileEvent was triggered by a change in the file metadata.
func (e *FileEvent) IsAttrib() bool {
return (e.mask & sys_NOTE_ATTRIB) == sys_NOTE_ATTRIB
}
type Watcher struct {
mu sync.Mutex // Mutex for the Watcher itself.
kq int // File descriptor (as returned by the kqueue() syscall)
watches map[string]int // Map of watched file descriptors (key: path)
wmut sync.Mutex // Protects access to watches.
fsnFlags map[string]uint32 // Map of watched files to flags used for filter
fsnmut sync.Mutex // Protects access to fsnFlags.
enFlags map[string]uint32 // Map of watched files to evfilt note flags used in kqueue
enmut sync.Mutex // Protects access to enFlags.
paths map[int]string // Map of watched paths (key: watch descriptor)
finfo map[int]os.FileInfo // Map of file information (isDir, isReg; key: watch descriptor)
pmut sync.Mutex // Protects access to paths and finfo.
fileExists map[string]bool // Keep track of if we know this file exists (to stop duplicate create events)
femut sync.Mutex // Protects access to fileExists.
externalWatches map[string]bool // Map of watches added by user of the library.
ewmut sync.Mutex // Protects access to externalWatches.
Error chan error // Errors are sent on this channel
internalEvent chan *FileEvent // Events are queued on this channel
Event chan *FileEvent // Events are returned on this channel
done chan bool // Channel for sending a "quit message" to the reader goroutine
isClosed bool // Set to true when Close() is first called
}
// NewWatcher creates and returns a new kevent instance using kqueue(2)
func NewWatcher() (*Watcher, error) {
fd, errno := syscall.Kqueue()
if fd == -1 {
return nil, os.NewSyscallError("kqueue", errno)
}
w := &Watcher{
kq: fd,
watches: make(map[string]int),
fsnFlags: make(map[string]uint32),
enFlags: make(map[string]uint32),
paths: make(map[int]string),
finfo: make(map[int]os.FileInfo),
fileExists: make(map[string]bool),
externalWatches: make(map[string]bool),
internalEvent: make(chan *FileEvent),
Event: make(chan *FileEvent),
Error: make(chan error),
done: make(chan bool, 1),
}
go w.readEvents()
go w.purgeEvents()
return w, nil
}
// Close closes a kevent watcher instance
// It sends a message to the reader goroutine to quit and removes all watches
// associated with the kevent instance
func (w *Watcher) Close() error {
w.mu.Lock()
if w.isClosed {
w.mu.Unlock()
return nil
}
w.isClosed = true
w.mu.Unlock()
// Send "quit" message to the reader goroutine
w.done <- true
w.wmut.Lock()
ws := w.watches
w.wmut.Unlock()
for path := range ws {
w.removeWatch(path)
}
return nil
}
// AddWatch adds path to the watched file set.
// The flags are interpreted as described in kevent(2).
func (w *Watcher) addWatch(path string, flags uint32) error {
w.mu.Lock()
if w.isClosed {
w.mu.Unlock()
return errors.New("kevent instance already closed")
}
w.mu.Unlock()
watchDir := false
w.wmut.Lock()
watchfd, found := w.watches[path]
w.wmut.Unlock()
if !found {
fi, errstat := os.Lstat(path)
if errstat != nil {
return errstat
}
// don't watch socket
if fi.Mode()&os.ModeSocket == os.ModeSocket {
return nil
}
// Follow Symlinks
// Unfortunately, Linux can add bogus symlinks to watch list without
// issue, and Windows can't do symlinks period (AFAIK). To maintain
// consistency, we will act like everything is fine. There will simply
// be no file events for broken symlinks.
// Hence the returns of nil on errors.
if fi.Mode()&os.ModeSymlink == os.ModeSymlink {
path, err := filepath.EvalSymlinks(path)
if err != nil {
return nil
}
fi, errstat = os.Lstat(path)
if errstat != nil {
return nil
}
}
fd, errno := syscall.Open(path, open_FLAGS, 0700)
if fd == -1 {
return errno
}
watchfd = fd
w.wmut.Lock()
w.watches[path] = watchfd
w.wmut.Unlock()
w.pmut.Lock()
w.paths[watchfd] = path
w.finfo[watchfd] = fi
w.pmut.Unlock()
}
// Watch the directory if it has not been watched before.
w.pmut.Lock()
w.enmut.Lock()
if w.finfo[watchfd].IsDir() &&
(flags&sys_NOTE_WRITE) == sys_NOTE_WRITE &&
(!found || (w.enFlags[path]&sys_NOTE_WRITE) != sys_NOTE_WRITE) {
watchDir = true
}
w.enmut.Unlock()
w.pmut.Unlock()
w.enmut.Lock()
w.enFlags[path] = flags
w.enmut.Unlock()
var kbuf [1]syscall.Kevent_t
watchEntry := &kbuf[0]
watchEntry.Fflags = flags
syscall.SetKevent(watchEntry, watchfd, syscall.EVFILT_VNODE, syscall.EV_ADD|syscall.EV_CLEAR)
entryFlags := watchEntry.Flags
success, errno := syscall.Kevent(w.kq, kbuf[:], nil, nil)
if success == -1 {
return errno
} else if (entryFlags & syscall.EV_ERROR) == syscall.EV_ERROR {
return errors.New("kevent add error")
}
if watchDir {
errdir := w.watchDirectoryFiles(path)
if errdir != nil {
return errdir
}
}
return nil
}
// Watch adds path to the watched file set, watching all events.
func (w *Watcher) watch(path string) error {
w.ewmut.Lock()
w.externalWatches[path] = true
w.ewmut.Unlock()
return w.addWatch(path, sys_NOTE_ALLEVENTS)
}
// RemoveWatch removes path from the watched file set.
func (w *Watcher) removeWatch(path string) error {
w.wmut.Lock()
watchfd, ok := w.watches[path]
w.wmut.Unlock()
if !ok {
return errors.New(fmt.Sprintf("can't remove non-existent kevent watch for: %s", path))
}
var kbuf [1]syscall.Kevent_t
watchEntry := &kbuf[0]
syscall.SetKevent(watchEntry, watchfd, syscall.EVFILT_VNODE, syscall.EV_DELETE)
entryFlags := watchEntry.Flags
success, errno := syscall.Kevent(w.kq, kbuf[:], nil, nil)
if success == -1 {
return os.NewSyscallError("kevent_rm_watch", errno)
} else if (entryFlags & syscall.EV_ERROR) == syscall.EV_ERROR {
return errors.New("kevent rm error")
}
syscall.Close(watchfd)
w.wmut.Lock()
delete(w.watches, path)
w.wmut.Unlock()
w.enmut.Lock()
delete(w.enFlags, path)
w.enmut.Unlock()
w.pmut.Lock()
delete(w.paths, watchfd)
fInfo := w.finfo[watchfd]
delete(w.finfo, watchfd)
w.pmut.Unlock()
// Find all watched paths that are in this directory that are not external.
if fInfo.IsDir() {
var pathsToRemove []string
w.pmut.Lock()
for _, wpath := range w.paths {
wdir, _ := filepath.Split(wpath)
if filepath.Clean(wdir) == filepath.Clean(path) {
w.ewmut.Lock()
if !w.externalWatches[wpath] {
pathsToRemove = append(pathsToRemove, wpath)
}
w.ewmut.Unlock()
}
}
w.pmut.Unlock()
for _, p := range pathsToRemove {
// Since these are internal, not much sense in propagating error
// to the user, as that will just confuse them with an error about
// a path they did not explicitly watch themselves.
w.removeWatch(p)
}
}
return nil
}
// readEvents reads from the kqueue file descriptor, converts the
// received events into Event objects and sends them via the Event channel
func (w *Watcher) readEvents() {
var (
eventbuf [10]syscall.Kevent_t // Event buffer
events []syscall.Kevent_t // Received events
twait *syscall.Timespec // Time to block waiting for events
n int // Number of events returned from kevent
errno error // Syscall errno
)
events = eventbuf[0:0]
twait = new(syscall.Timespec)
*twait = syscall.NsecToTimespec(keventWaitTime)
for {
// See if there is a message on the "done" channel
var done bool
select {
case done = <-w.done:
default:
}
// If "done" message is received
if done {
errno := syscall.Close(w.kq)
if errno != nil {
w.Error <- os.NewSyscallError("close", errno)
}
close(w.internalEvent)
close(w.Error)
return
}
// Get new events
if len(events) == 0 {
n, errno = syscall.Kevent(w.kq, nil, eventbuf[:], twait)
// EINTR is okay, basically the syscall was interrupted before
// timeout expired.
if errno != nil && errno != syscall.EINTR {
w.Error <- os.NewSyscallError("kevent", errno)
continue
}
// Received some events
if n > 0 {
events = eventbuf[0:n]
}
}
// Flush the events we received to the events channel
for len(events) > 0 {
fileEvent := new(FileEvent)
watchEvent := &events[0]
fileEvent.mask = uint32(watchEvent.Fflags)
w.pmut.Lock()
fileEvent.Name = w.paths[int(watchEvent.Ident)]
fileInfo := w.finfo[int(watchEvent.Ident)]
w.pmut.Unlock()
if fileInfo != nil && fileInfo.IsDir() && !fileEvent.IsDelete() {
// Double check to make sure the directory exist. This can happen when
// we do a rm -fr on a recursively watched folders and we receive a
// modification event first but the folder has been deleted and later
// receive the delete event
if _, err := os.Lstat(fileEvent.Name); os.IsNotExist(err) {
// mark is as delete event
fileEvent.mask |= sys_NOTE_DELETE
}
}
if fileInfo != nil && fileInfo.IsDir() && fileEvent.IsModify() && !fileEvent.IsDelete() {
w.sendDirectoryChangeEvents(fileEvent.Name)
} else {
// Send the event on the events channel
w.internalEvent <- fileEvent
}
// Move to next event
events = events[1:]
if fileEvent.IsRename() {
w.removeWatch(fileEvent.Name)
w.femut.Lock()
delete(w.fileExists, fileEvent.Name)
w.femut.Unlock()
}
if fileEvent.IsDelete() {
w.removeWatch(fileEvent.Name)
w.femut.Lock()
delete(w.fileExists, fileEvent.Name)
w.femut.Unlock()
// Look for a file that may have overwritten this
// (ie mv f1 f2 will delete f2 then create f2)
fileDir, _ := filepath.Split(fileEvent.Name)
fileDir = filepath.Clean(fileDir)
w.wmut.Lock()
_, found := w.watches[fileDir]
w.wmut.Unlock()
if found {
// make sure the directory exist before we watch for changes. When we
// do a recursive watch and perform rm -fr, the parent directory might
// have gone missing, ignore the missing directory and let the
// upcoming delete event remove the watch form the parent folder
if _, err := os.Lstat(fileDir); !os.IsNotExist(err) {
w.sendDirectoryChangeEvents(fileDir)
}
}
}
}
}
}
func (w *Watcher) watchDirectoryFiles(dirPath string) error {
// Get all files
files, err := ioutil.ReadDir(dirPath)
if err != nil {
return err
}
// Search for new files
for _, fileInfo := range files {
filePath := filepath.Join(dirPath, fileInfo.Name())
// Inherit fsnFlags from parent directory
w.fsnmut.Lock()
if flags, found := w.fsnFlags[dirPath]; found {
w.fsnFlags[filePath] = flags
} else {
w.fsnFlags[filePath] = FSN_ALL
}
w.fsnmut.Unlock()
if fileInfo.IsDir() == false {
// Watch file to mimic linux fsnotify
e := w.addWatch(filePath, sys_NOTE_ALLEVENTS)
if e != nil {
return e
}
} else {
// If the user is currently watching directory
// we want to preserve the flags used
w.enmut.Lock()
currFlags, found := w.enFlags[filePath]
w.enmut.Unlock()
var newFlags uint32 = sys_NOTE_DELETE
if found {
newFlags |= currFlags
}
// Linux gives deletes if not explicitly watching
e := w.addWatch(filePath, newFlags)
if e != nil {
return e
}
}
w.femut.Lock()
w.fileExists[filePath] = true
w.femut.Unlock()
}
return nil
}
// sendDirectoryEvents searches the directory for newly created files
// and sends them over the event channel. This functionality is to have
// the BSD version of fsnotify match linux fsnotify which provides a
// create event for files created in a watched directory.
func (w *Watcher) sendDirectoryChangeEvents(dirPath string) {
// Get all files
files, err := ioutil.ReadDir(dirPath)
if err != nil {
w.Error <- err
}
// Search for new files
for _, fileInfo := range files {
filePath := filepath.Join(dirPath, fileInfo.Name())
w.femut.Lock()
_, doesExist := w.fileExists[filePath]
w.femut.Unlock()
if !doesExist {
// Inherit fsnFlags from parent directory
w.fsnmut.Lock()
if flags, found := w.fsnFlags[dirPath]; found {
w.fsnFlags[filePath] = flags
} else {
w.fsnFlags[filePath] = FSN_ALL
}
w.fsnmut.Unlock()
// Send create event
fileEvent := new(FileEvent)
fileEvent.Name = filePath
fileEvent.create = true
w.internalEvent <- fileEvent
}
w.femut.Lock()
w.fileExists[filePath] = true
w.femut.Unlock()
}
w.watchDirectoryFiles(dirPath)
}

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vendor/github.com/howeyc/fsnotify/fsnotify_linux.go generated vendored Normal file
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// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build linux
package fsnotify
import (
"errors"
"fmt"
"os"
"strings"
"sync"
"syscall"
"unsafe"
)
const (
// Options for inotify_init() are not exported
// sys_IN_CLOEXEC uint32 = syscall.IN_CLOEXEC
// sys_IN_NONBLOCK uint32 = syscall.IN_NONBLOCK
// Options for AddWatch
sys_IN_DONT_FOLLOW uint32 = syscall.IN_DONT_FOLLOW
sys_IN_ONESHOT uint32 = syscall.IN_ONESHOT
sys_IN_ONLYDIR uint32 = syscall.IN_ONLYDIR
// The "sys_IN_MASK_ADD" option is not exported, as AddWatch
// adds it automatically, if there is already a watch for the given path
// sys_IN_MASK_ADD uint32 = syscall.IN_MASK_ADD
// Events
sys_IN_ACCESS uint32 = syscall.IN_ACCESS
sys_IN_ALL_EVENTS uint32 = syscall.IN_ALL_EVENTS
sys_IN_ATTRIB uint32 = syscall.IN_ATTRIB
sys_IN_CLOSE uint32 = syscall.IN_CLOSE
sys_IN_CLOSE_NOWRITE uint32 = syscall.IN_CLOSE_NOWRITE
sys_IN_CLOSE_WRITE uint32 = syscall.IN_CLOSE_WRITE
sys_IN_CREATE uint32 = syscall.IN_CREATE
sys_IN_DELETE uint32 = syscall.IN_DELETE
sys_IN_DELETE_SELF uint32 = syscall.IN_DELETE_SELF
sys_IN_MODIFY uint32 = syscall.IN_MODIFY
sys_IN_MOVE uint32 = syscall.IN_MOVE
sys_IN_MOVED_FROM uint32 = syscall.IN_MOVED_FROM
sys_IN_MOVED_TO uint32 = syscall.IN_MOVED_TO
sys_IN_MOVE_SELF uint32 = syscall.IN_MOVE_SELF
sys_IN_OPEN uint32 = syscall.IN_OPEN
sys_AGNOSTIC_EVENTS = sys_IN_MOVED_TO | sys_IN_MOVED_FROM | sys_IN_CREATE | sys_IN_ATTRIB | sys_IN_MODIFY | sys_IN_MOVE_SELF | sys_IN_DELETE | sys_IN_DELETE_SELF
// Special events
sys_IN_ISDIR uint32 = syscall.IN_ISDIR
sys_IN_IGNORED uint32 = syscall.IN_IGNORED
sys_IN_Q_OVERFLOW uint32 = syscall.IN_Q_OVERFLOW
sys_IN_UNMOUNT uint32 = syscall.IN_UNMOUNT
)
type FileEvent struct {
mask uint32 // Mask of events
cookie uint32 // Unique cookie associating related events (for rename(2))
Name string // File name (optional)
}
// IsCreate reports whether the FileEvent was triggered by a creation
func (e *FileEvent) IsCreate() bool {
return (e.mask&sys_IN_CREATE) == sys_IN_CREATE || (e.mask&sys_IN_MOVED_TO) == sys_IN_MOVED_TO
}
// IsDelete reports whether the FileEvent was triggered by a delete
func (e *FileEvent) IsDelete() bool {
return (e.mask&sys_IN_DELETE_SELF) == sys_IN_DELETE_SELF || (e.mask&sys_IN_DELETE) == sys_IN_DELETE
}
// IsModify reports whether the FileEvent was triggered by a file modification or attribute change
func (e *FileEvent) IsModify() bool {
return ((e.mask&sys_IN_MODIFY) == sys_IN_MODIFY || (e.mask&sys_IN_ATTRIB) == sys_IN_ATTRIB)
}
// IsRename reports whether the FileEvent was triggered by a change name
func (e *FileEvent) IsRename() bool {
return ((e.mask&sys_IN_MOVE_SELF) == sys_IN_MOVE_SELF || (e.mask&sys_IN_MOVED_FROM) == sys_IN_MOVED_FROM)
}
// IsAttrib reports whether the FileEvent was triggered by a change in the file metadata.
func (e *FileEvent) IsAttrib() bool {
return (e.mask & sys_IN_ATTRIB) == sys_IN_ATTRIB
}
type watch struct {
wd uint32 // Watch descriptor (as returned by the inotify_add_watch() syscall)
flags uint32 // inotify flags of this watch (see inotify(7) for the list of valid flags)
}
type Watcher struct {
mu sync.Mutex // Map access
fd int // File descriptor (as returned by the inotify_init() syscall)
watches map[string]*watch // Map of inotify watches (key: path)
fsnFlags map[string]uint32 // Map of watched files to flags used for filter
fsnmut sync.Mutex // Protects access to fsnFlags.
paths map[int]string // Map of watched paths (key: watch descriptor)
Error chan error // Errors are sent on this channel
internalEvent chan *FileEvent // Events are queued on this channel
Event chan *FileEvent // Events are returned on this channel
done chan bool // Channel for sending a "quit message" to the reader goroutine
isClosed bool // Set to true when Close() is first called
}
// NewWatcher creates and returns a new inotify instance using inotify_init(2)
func NewWatcher() (*Watcher, error) {
fd, errno := syscall.InotifyInit()
if fd == -1 {
return nil, os.NewSyscallError("inotify_init", errno)
}
w := &Watcher{
fd: fd,
watches: make(map[string]*watch),
fsnFlags: make(map[string]uint32),
paths: make(map[int]string),
internalEvent: make(chan *FileEvent),
Event: make(chan *FileEvent),
Error: make(chan error),
done: make(chan bool, 1),
}
go w.readEvents()
go w.purgeEvents()
return w, nil
}
// Close closes an inotify watcher instance
// It sends a message to the reader goroutine to quit and removes all watches
// associated with the inotify instance
func (w *Watcher) Close() error {
if w.isClosed {
return nil
}
w.isClosed = true
// Remove all watches
for path := range w.watches {
w.RemoveWatch(path)
}
// Send "quit" message to the reader goroutine
w.done <- true
return nil
}
// AddWatch adds path to the watched file set.
// The flags are interpreted as described in inotify_add_watch(2).
func (w *Watcher) addWatch(path string, flags uint32) error {
if w.isClosed {
return errors.New("inotify instance already closed")
}
w.mu.Lock()
watchEntry, found := w.watches[path]
w.mu.Unlock()
if found {
watchEntry.flags |= flags
flags |= syscall.IN_MASK_ADD
}
wd, errno := syscall.InotifyAddWatch(w.fd, path, flags)
if wd == -1 {
return errno
}
w.mu.Lock()
w.watches[path] = &watch{wd: uint32(wd), flags: flags}
w.paths[wd] = path
w.mu.Unlock()
return nil
}
// Watch adds path to the watched file set, watching all events.
func (w *Watcher) watch(path string) error {
return w.addWatch(path, sys_AGNOSTIC_EVENTS)
}
// RemoveWatch removes path from the watched file set.
func (w *Watcher) removeWatch(path string) error {
w.mu.Lock()
defer w.mu.Unlock()
watch, ok := w.watches[path]
if !ok {
return errors.New(fmt.Sprintf("can't remove non-existent inotify watch for: %s", path))
}
success, errno := syscall.InotifyRmWatch(w.fd, watch.wd)
if success == -1 {
return os.NewSyscallError("inotify_rm_watch", errno)
}
delete(w.watches, path)
return nil
}
// readEvents reads from the inotify file descriptor, converts the
// received events into Event objects and sends them via the Event channel
func (w *Watcher) readEvents() {
var (
buf [syscall.SizeofInotifyEvent * 4096]byte // Buffer for a maximum of 4096 raw events
n int // Number of bytes read with read()
errno error // Syscall errno
)
for {
// See if there is a message on the "done" channel
select {
case <-w.done:
syscall.Close(w.fd)
close(w.internalEvent)
close(w.Error)
return
default:
}
n, errno = syscall.Read(w.fd, buf[:])
// If EOF is received
if n == 0 {
syscall.Close(w.fd)
close(w.internalEvent)
close(w.Error)
return
}
if n < 0 {
w.Error <- os.NewSyscallError("read", errno)
continue
}
if n < syscall.SizeofInotifyEvent {
w.Error <- errors.New("inotify: short read in readEvents()")
continue
}
var offset uint32 = 0
// We don't know how many events we just read into the buffer
// While the offset points to at least one whole event...
for offset <= uint32(n-syscall.SizeofInotifyEvent) {
// Point "raw" to the event in the buffer
raw := (*syscall.InotifyEvent)(unsafe.Pointer(&buf[offset]))
event := new(FileEvent)
event.mask = uint32(raw.Mask)
event.cookie = uint32(raw.Cookie)
nameLen := uint32(raw.Len)
// If the event happened to the watched directory or the watched file, the kernel
// doesn't append the filename to the event, but we would like to always fill the
// the "Name" field with a valid filename. We retrieve the path of the watch from
// the "paths" map.
w.mu.Lock()
event.Name = w.paths[int(raw.Wd)]
w.mu.Unlock()
watchedName := event.Name
if nameLen > 0 {
// Point "bytes" at the first byte of the filename
bytes := (*[syscall.PathMax]byte)(unsafe.Pointer(&buf[offset+syscall.SizeofInotifyEvent]))
// The filename is padded with NUL bytes. TrimRight() gets rid of those.
event.Name += "/" + strings.TrimRight(string(bytes[0:nameLen]), "\000")
}
// Send the events that are not ignored on the events channel
if !event.ignoreLinux() {
// Setup FSNotify flags (inherit from directory watch)
w.fsnmut.Lock()
if _, fsnFound := w.fsnFlags[event.Name]; !fsnFound {
if fsnFlags, watchFound := w.fsnFlags[watchedName]; watchFound {
w.fsnFlags[event.Name] = fsnFlags
} else {
w.fsnFlags[event.Name] = FSN_ALL
}
}
w.fsnmut.Unlock()
w.internalEvent <- event
}
// Move to the next event in the buffer
offset += syscall.SizeofInotifyEvent + nameLen
}
}
}
// Certain types of events can be "ignored" and not sent over the Event
// channel. Such as events marked ignore by the kernel, or MODIFY events
// against files that do not exist.
func (e *FileEvent) ignoreLinux() bool {
// Ignore anything the inotify API says to ignore
if e.mask&sys_IN_IGNORED == sys_IN_IGNORED {
return true
}
// If the event is not a DELETE or RENAME, the file must exist.
// Otherwise the event is ignored.
// *Note*: this was put in place because it was seen that a MODIFY
// event was sent after the DELETE. This ignores that MODIFY and
// assumes a DELETE will come or has come if the file doesn't exist.
if !(e.IsDelete() || e.IsRename()) {
_, statErr := os.Lstat(e.Name)
return os.IsNotExist(statErr)
}
return false
}

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vendor/github.com/howeyc/fsnotify/fsnotify_open_bsd.go generated vendored Normal file
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// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build freebsd openbsd netbsd dragonfly
package fsnotify
import "syscall"
const open_FLAGS = syscall.O_NONBLOCK | syscall.O_RDONLY

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vendor/github.com/howeyc/fsnotify/fsnotify_open_darwin.go generated vendored Normal file
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// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin
package fsnotify
import "syscall"
const open_FLAGS = syscall.O_EVTONLY

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vendor/github.com/howeyc/fsnotify/fsnotify_windows.go generated vendored Normal file
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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build windows
package fsnotify
import (
"errors"
"fmt"
"os"
"path/filepath"
"runtime"
"sync"
"syscall"
"unsafe"
)
const (
// Options for AddWatch
sys_FS_ONESHOT = 0x80000000
sys_FS_ONLYDIR = 0x1000000
// Events
sys_FS_ACCESS = 0x1
sys_FS_ALL_EVENTS = 0xfff
sys_FS_ATTRIB = 0x4
sys_FS_CLOSE = 0x18
sys_FS_CREATE = 0x100
sys_FS_DELETE = 0x200
sys_FS_DELETE_SELF = 0x400
sys_FS_MODIFY = 0x2
sys_FS_MOVE = 0xc0
sys_FS_MOVED_FROM = 0x40
sys_FS_MOVED_TO = 0x80
sys_FS_MOVE_SELF = 0x800
// Special events
sys_FS_IGNORED = 0x8000
sys_FS_Q_OVERFLOW = 0x4000
)
const (
// TODO(nj): Use syscall.ERROR_MORE_DATA from ztypes_windows in Go 1.3+
sys_ERROR_MORE_DATA syscall.Errno = 234
)
// Event is the type of the notification messages
// received on the watcher's Event channel.
type FileEvent struct {
mask uint32 // Mask of events
cookie uint32 // Unique cookie associating related events (for rename)
Name string // File name (optional)
}
// IsCreate reports whether the FileEvent was triggered by a creation
func (e *FileEvent) IsCreate() bool { return (e.mask & sys_FS_CREATE) == sys_FS_CREATE }
// IsDelete reports whether the FileEvent was triggered by a delete
func (e *FileEvent) IsDelete() bool {
return ((e.mask&sys_FS_DELETE) == sys_FS_DELETE || (e.mask&sys_FS_DELETE_SELF) == sys_FS_DELETE_SELF)
}
// IsModify reports whether the FileEvent was triggered by a file modification or attribute change
func (e *FileEvent) IsModify() bool {
return ((e.mask&sys_FS_MODIFY) == sys_FS_MODIFY || (e.mask&sys_FS_ATTRIB) == sys_FS_ATTRIB)
}
// IsRename reports whether the FileEvent was triggered by a change name
func (e *FileEvent) IsRename() bool {
return ((e.mask&sys_FS_MOVE) == sys_FS_MOVE || (e.mask&sys_FS_MOVE_SELF) == sys_FS_MOVE_SELF || (e.mask&sys_FS_MOVED_FROM) == sys_FS_MOVED_FROM || (e.mask&sys_FS_MOVED_TO) == sys_FS_MOVED_TO)
}
// IsAttrib reports whether the FileEvent was triggered by a change in the file metadata.
func (e *FileEvent) IsAttrib() bool {
return (e.mask & sys_FS_ATTRIB) == sys_FS_ATTRIB
}
const (
opAddWatch = iota
opRemoveWatch
)
const (
provisional uint64 = 1 << (32 + iota)
)
type input struct {
op int
path string
flags uint32
reply chan error
}
type inode struct {
handle syscall.Handle
volume uint32
index uint64
}
type watch struct {
ov syscall.Overlapped
ino *inode // i-number
path string // Directory path
mask uint64 // Directory itself is being watched with these notify flags
names map[string]uint64 // Map of names being watched and their notify flags
rename string // Remembers the old name while renaming a file
buf [4096]byte
}
type indexMap map[uint64]*watch
type watchMap map[uint32]indexMap
// A Watcher waits for and receives event notifications
// for a specific set of files and directories.
type Watcher struct {
mu sync.Mutex // Map access
port syscall.Handle // Handle to completion port
watches watchMap // Map of watches (key: i-number)
fsnFlags map[string]uint32 // Map of watched files to flags used for filter
fsnmut sync.Mutex // Protects access to fsnFlags.
input chan *input // Inputs to the reader are sent on this channel
internalEvent chan *FileEvent // Events are queued on this channel
Event chan *FileEvent // Events are returned on this channel
Error chan error // Errors are sent on this channel
isClosed bool // Set to true when Close() is first called
quit chan chan<- error
cookie uint32
}
// NewWatcher creates and returns a Watcher.
func NewWatcher() (*Watcher, error) {
port, e := syscall.CreateIoCompletionPort(syscall.InvalidHandle, 0, 0, 0)
if e != nil {
return nil, os.NewSyscallError("CreateIoCompletionPort", e)
}
w := &Watcher{
port: port,
watches: make(watchMap),
fsnFlags: make(map[string]uint32),
input: make(chan *input, 1),
Event: make(chan *FileEvent, 50),
internalEvent: make(chan *FileEvent),
Error: make(chan error),
quit: make(chan chan<- error, 1),
}
go w.readEvents()
go w.purgeEvents()
return w, nil
}
// Close closes a Watcher.
// It sends a message to the reader goroutine to quit and removes all watches
// associated with the watcher.
func (w *Watcher) Close() error {
if w.isClosed {
return nil
}
w.isClosed = true
// Send "quit" message to the reader goroutine
ch := make(chan error)
w.quit <- ch
if err := w.wakeupReader(); err != nil {
return err
}
return <-ch
}
// AddWatch adds path to the watched file set.
func (w *Watcher) AddWatch(path string, flags uint32) error {
if w.isClosed {
return errors.New("watcher already closed")
}
in := &input{
op: opAddWatch,
path: filepath.Clean(path),
flags: flags,
reply: make(chan error),
}
w.input <- in
if err := w.wakeupReader(); err != nil {
return err
}
return <-in.reply
}
// Watch adds path to the watched file set, watching all events.
func (w *Watcher) watch(path string) error {
return w.AddWatch(path, sys_FS_ALL_EVENTS)
}
// RemoveWatch removes path from the watched file set.
func (w *Watcher) removeWatch(path string) error {
in := &input{
op: opRemoveWatch,
path: filepath.Clean(path),
reply: make(chan error),
}
w.input <- in
if err := w.wakeupReader(); err != nil {
return err
}
return <-in.reply
}
func (w *Watcher) wakeupReader() error {
e := syscall.PostQueuedCompletionStatus(w.port, 0, 0, nil)
if e != nil {
return os.NewSyscallError("PostQueuedCompletionStatus", e)
}
return nil
}
func getDir(pathname string) (dir string, err error) {
attr, e := syscall.GetFileAttributes(syscall.StringToUTF16Ptr(pathname))
if e != nil {
return "", os.NewSyscallError("GetFileAttributes", e)
}
if attr&syscall.FILE_ATTRIBUTE_DIRECTORY != 0 {
dir = pathname
} else {
dir, _ = filepath.Split(pathname)
dir = filepath.Clean(dir)
}
return
}
func getIno(path string) (ino *inode, err error) {
h, e := syscall.CreateFile(syscall.StringToUTF16Ptr(path),
syscall.FILE_LIST_DIRECTORY,
syscall.FILE_SHARE_READ|syscall.FILE_SHARE_WRITE|syscall.FILE_SHARE_DELETE,
nil, syscall.OPEN_EXISTING,
syscall.FILE_FLAG_BACKUP_SEMANTICS|syscall.FILE_FLAG_OVERLAPPED, 0)
if e != nil {
return nil, os.NewSyscallError("CreateFile", e)
}
var fi syscall.ByHandleFileInformation
if e = syscall.GetFileInformationByHandle(h, &fi); e != nil {
syscall.CloseHandle(h)
return nil, os.NewSyscallError("GetFileInformationByHandle", e)
}
ino = &inode{
handle: h,
volume: fi.VolumeSerialNumber,
index: uint64(fi.FileIndexHigh)<<32 | uint64(fi.FileIndexLow),
}
return ino, nil
}
// Must run within the I/O thread.
func (m watchMap) get(ino *inode) *watch {
if i := m[ino.volume]; i != nil {
return i[ino.index]
}
return nil
}
// Must run within the I/O thread.
func (m watchMap) set(ino *inode, watch *watch) {
i := m[ino.volume]
if i == nil {
i = make(indexMap)
m[ino.volume] = i
}
i[ino.index] = watch
}
// Must run within the I/O thread.
func (w *Watcher) addWatch(pathname string, flags uint64) error {
dir, err := getDir(pathname)
if err != nil {
return err
}
if flags&sys_FS_ONLYDIR != 0 && pathname != dir {
return nil
}
ino, err := getIno(dir)
if err != nil {
return err
}
w.mu.Lock()
watchEntry := w.watches.get(ino)
w.mu.Unlock()
if watchEntry == nil {
if _, e := syscall.CreateIoCompletionPort(ino.handle, w.port, 0, 0); e != nil {
syscall.CloseHandle(ino.handle)
return os.NewSyscallError("CreateIoCompletionPort", e)
}
watchEntry = &watch{
ino: ino,
path: dir,
names: make(map[string]uint64),
}
w.mu.Lock()
w.watches.set(ino, watchEntry)
w.mu.Unlock()
flags |= provisional
} else {
syscall.CloseHandle(ino.handle)
}
if pathname == dir {
watchEntry.mask |= flags
} else {
watchEntry.names[filepath.Base(pathname)] |= flags
}
if err = w.startRead(watchEntry); err != nil {
return err
}
if pathname == dir {
watchEntry.mask &= ^provisional
} else {
watchEntry.names[filepath.Base(pathname)] &= ^provisional
}
return nil
}
// Must run within the I/O thread.
func (w *Watcher) remWatch(pathname string) error {
dir, err := getDir(pathname)
if err != nil {
return err
}
ino, err := getIno(dir)
if err != nil {
return err
}
w.mu.Lock()
watch := w.watches.get(ino)
w.mu.Unlock()
if watch == nil {
return fmt.Errorf("can't remove non-existent watch for: %s", pathname)
}
if pathname == dir {
w.sendEvent(watch.path, watch.mask&sys_FS_IGNORED)
watch.mask = 0
} else {
name := filepath.Base(pathname)
w.sendEvent(watch.path+"\\"+name, watch.names[name]&sys_FS_IGNORED)
delete(watch.names, name)
}
return w.startRead(watch)
}
// Must run within the I/O thread.
func (w *Watcher) deleteWatch(watch *watch) {
for name, mask := range watch.names {
if mask&provisional == 0 {
w.sendEvent(watch.path+"\\"+name, mask&sys_FS_IGNORED)
}
delete(watch.names, name)
}
if watch.mask != 0 {
if watch.mask&provisional == 0 {
w.sendEvent(watch.path, watch.mask&sys_FS_IGNORED)
}
watch.mask = 0
}
}
// Must run within the I/O thread.
func (w *Watcher) startRead(watch *watch) error {
if e := syscall.CancelIo(watch.ino.handle); e != nil {
w.Error <- os.NewSyscallError("CancelIo", e)
w.deleteWatch(watch)
}
mask := toWindowsFlags(watch.mask)
for _, m := range watch.names {
mask |= toWindowsFlags(m)
}
if mask == 0 {
if e := syscall.CloseHandle(watch.ino.handle); e != nil {
w.Error <- os.NewSyscallError("CloseHandle", e)
}
w.mu.Lock()
delete(w.watches[watch.ino.volume], watch.ino.index)
w.mu.Unlock()
return nil
}
e := syscall.ReadDirectoryChanges(watch.ino.handle, &watch.buf[0],
uint32(unsafe.Sizeof(watch.buf)), false, mask, nil, &watch.ov, 0)
if e != nil {
err := os.NewSyscallError("ReadDirectoryChanges", e)
if e == syscall.ERROR_ACCESS_DENIED && watch.mask&provisional == 0 {
// Watched directory was probably removed
if w.sendEvent(watch.path, watch.mask&sys_FS_DELETE_SELF) {
if watch.mask&sys_FS_ONESHOT != 0 {
watch.mask = 0
}
}
err = nil
}
w.deleteWatch(watch)
w.startRead(watch)
return err
}
return nil
}
// readEvents reads from the I/O completion port, converts the
// received events into Event objects and sends them via the Event channel.
// Entry point to the I/O thread.
func (w *Watcher) readEvents() {
var (
n, key uint32
ov *syscall.Overlapped
)
runtime.LockOSThread()
for {
e := syscall.GetQueuedCompletionStatus(w.port, &n, &key, &ov, syscall.INFINITE)
watch := (*watch)(unsafe.Pointer(ov))
if watch == nil {
select {
case ch := <-w.quit:
w.mu.Lock()
var indexes []indexMap
for _, index := range w.watches {
indexes = append(indexes, index)
}
w.mu.Unlock()
for _, index := range indexes {
for _, watch := range index {
w.deleteWatch(watch)
w.startRead(watch)
}
}
var err error
if e := syscall.CloseHandle(w.port); e != nil {
err = os.NewSyscallError("CloseHandle", e)
}
close(w.internalEvent)
close(w.Error)
ch <- err
return
case in := <-w.input:
switch in.op {
case opAddWatch:
in.reply <- w.addWatch(in.path, uint64(in.flags))
case opRemoveWatch:
in.reply <- w.remWatch(in.path)
}
default:
}
continue
}
switch e {
case sys_ERROR_MORE_DATA:
if watch == nil {
w.Error <- errors.New("ERROR_MORE_DATA has unexpectedly null lpOverlapped buffer")
} else {
// The i/o succeeded but the buffer is full.
// In theory we should be building up a full packet.
// In practice we can get away with just carrying on.
n = uint32(unsafe.Sizeof(watch.buf))
}
case syscall.ERROR_ACCESS_DENIED:
// Watched directory was probably removed
w.sendEvent(watch.path, watch.mask&sys_FS_DELETE_SELF)
w.deleteWatch(watch)
w.startRead(watch)
continue
case syscall.ERROR_OPERATION_ABORTED:
// CancelIo was called on this handle
continue
default:
w.Error <- os.NewSyscallError("GetQueuedCompletionPort", e)
continue
case nil:
}
var offset uint32
for {
if n == 0 {
w.internalEvent <- &FileEvent{mask: sys_FS_Q_OVERFLOW}
w.Error <- errors.New("short read in readEvents()")
break
}
// Point "raw" to the event in the buffer
raw := (*syscall.FileNotifyInformation)(unsafe.Pointer(&watch.buf[offset]))
buf := (*[syscall.MAX_PATH]uint16)(unsafe.Pointer(&raw.FileName))
name := syscall.UTF16ToString(buf[:raw.FileNameLength/2])
fullname := watch.path + "\\" + name
var mask uint64
switch raw.Action {
case syscall.FILE_ACTION_REMOVED:
mask = sys_FS_DELETE_SELF
case syscall.FILE_ACTION_MODIFIED:
mask = sys_FS_MODIFY
case syscall.FILE_ACTION_RENAMED_OLD_NAME:
watch.rename = name
case syscall.FILE_ACTION_RENAMED_NEW_NAME:
if watch.names[watch.rename] != 0 {
watch.names[name] |= watch.names[watch.rename]
delete(watch.names, watch.rename)
mask = sys_FS_MOVE_SELF
}
}
sendNameEvent := func() {
if w.sendEvent(fullname, watch.names[name]&mask) {
if watch.names[name]&sys_FS_ONESHOT != 0 {
delete(watch.names, name)
}
}
}
if raw.Action != syscall.FILE_ACTION_RENAMED_NEW_NAME {
sendNameEvent()
}
if raw.Action == syscall.FILE_ACTION_REMOVED {
w.sendEvent(fullname, watch.names[name]&sys_FS_IGNORED)
delete(watch.names, name)
}
if w.sendEvent(fullname, watch.mask&toFSnotifyFlags(raw.Action)) {
if watch.mask&sys_FS_ONESHOT != 0 {
watch.mask = 0
}
}
if raw.Action == syscall.FILE_ACTION_RENAMED_NEW_NAME {
fullname = watch.path + "\\" + watch.rename
sendNameEvent()
}
// Move to the next event in the buffer
if raw.NextEntryOffset == 0 {
break
}
offset += raw.NextEntryOffset
// Error!
if offset >= n {
w.Error <- errors.New("Windows system assumed buffer larger than it is, events have likely been missed.")
break
}
}
if err := w.startRead(watch); err != nil {
w.Error <- err
}
}
}
func (w *Watcher) sendEvent(name string, mask uint64) bool {
if mask == 0 {
return false
}
event := &FileEvent{mask: uint32(mask), Name: name}
if mask&sys_FS_MOVE != 0 {
if mask&sys_FS_MOVED_FROM != 0 {
w.cookie++
}
event.cookie = w.cookie
}
select {
case ch := <-w.quit:
w.quit <- ch
case w.Event <- event:
}
return true
}
func toWindowsFlags(mask uint64) uint32 {
var m uint32
if mask&sys_FS_ACCESS != 0 {
m |= syscall.FILE_NOTIFY_CHANGE_LAST_ACCESS
}
if mask&sys_FS_MODIFY != 0 {
m |= syscall.FILE_NOTIFY_CHANGE_LAST_WRITE
}
if mask&sys_FS_ATTRIB != 0 {
m |= syscall.FILE_NOTIFY_CHANGE_ATTRIBUTES
}
if mask&(sys_FS_MOVE|sys_FS_CREATE|sys_FS_DELETE) != 0 {
m |= syscall.FILE_NOTIFY_CHANGE_FILE_NAME | syscall.FILE_NOTIFY_CHANGE_DIR_NAME
}
return m
}
func toFSnotifyFlags(action uint32) uint64 {
switch action {
case syscall.FILE_ACTION_ADDED:
return sys_FS_CREATE
case syscall.FILE_ACTION_REMOVED:
return sys_FS_DELETE
case syscall.FILE_ACTION_MODIFIED:
return sys_FS_MODIFY
case syscall.FILE_ACTION_RENAMED_OLD_NAME:
return sys_FS_MOVED_FROM
case syscall.FILE_ACTION_RENAMED_NEW_NAME:
return sys_FS_MOVED_TO
}
return 0
}

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vendor/github.com/jtolds/gls/LICENSE generated vendored Normal file
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Copyright (c) 2013, Space Monkey, Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

89
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gls
===
Goroutine local storage
### IMPORTANT NOTE ###
It is my duty to point you to https://blog.golang.org/context, which is how
Google solves all of the problems you'd perhaps consider using this package
for at scale.
One downside to Google's approach is that *all* of your functions must have
a new first argument, but after clearing that hurdle everything else is much
better.
If you aren't interested in this warning, read on.
### Huhwaht? Why? ###
Every so often, a thread shows up on the
[golang-nuts](https://groups.google.com/d/forum/golang-nuts) asking for some
form of goroutine-local-storage, or some kind of goroutine id, or some kind of
context. There are a few valid use cases for goroutine-local-storage, one of
the most prominent being log line context. One poster was interested in being
able to log an HTTP request context id in every log line in the same goroutine
as the incoming HTTP request, without having to change every library and
function call he was interested in logging.
This would be pretty useful. Provided that you could get some kind of
goroutine-local-storage, you could call
[log.SetOutput](http://golang.org/pkg/log/#SetOutput) with your own logging
writer that checks goroutine-local-storage for some context information and
adds that context to your log lines.
But alas, Andrew Gerrand's typically diplomatic answer to the question of
goroutine-local variables was:
> We wouldn't even be having this discussion if thread local storage wasn't
> useful. But every feature comes at a cost, and in my opinion the cost of
> threadlocals far outweighs their benefits. They're just not a good fit for
> Go.
So, yeah, that makes sense. That's a pretty good reason for why the language
won't support a specific and (relatively) unuseful feature that requires some
runtime changes, just for the sake of a little bit of log improvement.
But does Go require runtime changes?
### How it works ###
Go has pretty fantastic introspective and reflective features, but one thing Go
doesn't give you is any kind of access to the stack pointer, or frame pointer,
or goroutine id, or anything contextual about your current stack. It gives you
access to your list of callers, but only along with program counters, which are
fixed at compile time.
But it does give you the stack.
So, we define 16 special functions and embed base-16 tags into the stack using
the call order of those 16 functions. Then, we can read our tags back out of
the stack looking at the callers list.
We then use these tags as an index into a traditional map for implementing
this library.
### What are people saying? ###
"Wow, that's horrifying."
"This is the most terrible thing I have seen in a very long time."
"Where is it getting a context from? Is this serializing all the requests?
What the heck is the client being bound to? What are these tags? Why does he
need callers? Oh god no. No no no."
### Docs ###
Please see the docs at http://godoc.org/github.com/jtolds/gls
### Related ###
If you're okay relying on the string format of the current runtime stacktrace
including a unique goroutine id (not guaranteed by the spec or anything, but
very unlikely to change within a Go release), you might be able to squeeze
out a bit more performance by using this similar library, inspired by some
code Brad Fitzpatrick wrote for debugging his HTTP/2 library:
https://github.com/tylerb/gls (in contrast, jtolds/gls doesn't require
any knowledge of the string format of the runtime stacktrace, which
probably adds unnecessary overhead).

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// Package gls implements goroutine-local storage.
package gls
import (
"sync"
)
const (
maxCallers = 64
)
var (
stackTagPool = &idPool{}
mgrRegistry = make(map[*ContextManager]bool)
mgrRegistryMtx sync.RWMutex
)
// Values is simply a map of key types to value types. Used by SetValues to
// set multiple values at once.
type Values map[interface{}]interface{}
// ContextManager is the main entrypoint for interacting with
// Goroutine-local-storage. You can have multiple independent ContextManagers
// at any given time. ContextManagers are usually declared globally for a given
// class of context variables. You should use NewContextManager for
// construction.
type ContextManager struct {
mtx sync.RWMutex
values map[uint]Values
}
// NewContextManager returns a brand new ContextManager. It also registers the
// new ContextManager in the ContextManager registry which is used by the Go
// method. ContextManagers are typically defined globally at package scope.
func NewContextManager() *ContextManager {
mgr := &ContextManager{values: make(map[uint]Values)}
mgrRegistryMtx.Lock()
defer mgrRegistryMtx.Unlock()
mgrRegistry[mgr] = true
return mgr
}
// Unregister removes a ContextManager from the global registry, used by the
// Go method. Only intended for use when you're completely done with a
// ContextManager. Use of Unregister at all is rare.
func (m *ContextManager) Unregister() {
mgrRegistryMtx.Lock()
defer mgrRegistryMtx.Unlock()
delete(mgrRegistry, m)
}
// SetValues takes a collection of values and a function to call for those
// values to be set in. Anything further down the stack will have the set
// values available through GetValue. SetValues will add new values or replace
// existing values of the same key and will not mutate or change values for
// previous stack frames.
// SetValues is slow (makes a copy of all current and new values for the new
// gls-context) in order to reduce the amount of lookups GetValue requires.
func (m *ContextManager) SetValues(new_values Values, context_call func()) {
if len(new_values) == 0 {
context_call()
return
}
tags := readStackTags(1)
m.mtx.Lock()
values := new_values
for _, tag := range tags {
if existing_values, ok := m.values[tag]; ok {
// oh, we found existing values, let's make a copy
values = make(Values, len(existing_values)+len(new_values))
for key, val := range existing_values {
values[key] = val
}
for key, val := range new_values {
values[key] = val
}
break
}
}
new_tag := stackTagPool.Acquire()
m.values[new_tag] = values
m.mtx.Unlock()
defer func() {
m.mtx.Lock()
delete(m.values, new_tag)
m.mtx.Unlock()
stackTagPool.Release(new_tag)
}()
addStackTag(new_tag, context_call)
}
// GetValue will return a previously set value, provided that the value was set
// by SetValues somewhere higher up the stack. If the value is not found, ok
// will be false.
func (m *ContextManager) GetValue(key interface{}) (value interface{}, ok bool) {
tags := readStackTags(1)
m.mtx.RLock()
defer m.mtx.RUnlock()
for _, tag := range tags {
if values, ok := m.values[tag]; ok {
value, ok := values[key]
return value, ok
}
}
return "", false
}
func (m *ContextManager) getValues() Values {
tags := readStackTags(2)
m.mtx.RLock()
defer m.mtx.RUnlock()
for _, tag := range tags {
if values, ok := m.values[tag]; ok {
return values
}
}
return nil
}
// Go preserves ContextManager values and Goroutine-local-storage across new
// goroutine invocations. The Go method makes a copy of all existing values on
// all registered context managers and makes sure they are still set after
// kicking off the provided function in a new goroutine. If you don't use this
// Go method instead of the standard 'go' keyword, you will lose values in
// ContextManagers, as goroutines have brand new stacks.
func Go(cb func()) {
mgrRegistryMtx.RLock()
defer mgrRegistryMtx.RUnlock()
for mgr, _ := range mgrRegistry {
values := mgr.getValues()
if len(values) > 0 {
mgr_copy := mgr
cb_copy := cb
cb = func() { mgr_copy.SetValues(values, cb_copy) }
}
}
go cb()
}

13
vendor/github.com/jtolds/gls/gen_sym.go generated vendored Normal file
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package gls
var (
symPool = &idPool{}
)
// ContextKey is a throwaway value you can use as a key to a ContextManager
type ContextKey struct{ id uint }
// GenSym will return a brand new, never-before-used ContextKey
func GenSym() ContextKey {
return ContextKey{id: symPool.Acquire()}
}

34
vendor/github.com/jtolds/gls/id_pool.go generated vendored Normal file
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package gls
// though this could probably be better at keeping ids smaller, the goal of
// this class is to keep a registry of the smallest unique integer ids
// per-process possible
import (
"sync"
)
type idPool struct {
mtx sync.Mutex
released []uint
max_id uint
}
func (p *idPool) Acquire() (id uint) {
p.mtx.Lock()
defer p.mtx.Unlock()
if len(p.released) > 0 {
id = p.released[len(p.released)-1]
p.released = p.released[:len(p.released)-1]
return id
}
id = p.max_id
p.max_id++
return id
}
func (p *idPool) Release(id uint) {
p.mtx.Lock()
defer p.mtx.Unlock()
p.released = append(p.released, id)
}

43
vendor/github.com/jtolds/gls/stack_tags.go generated vendored Normal file
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package gls
// so, basically, we're going to encode integer tags in base-16 on the stack
const (
bitWidth = 4
)
func addStackTag(tag uint, context_call func()) {
if context_call == nil {
return
}
markS(tag, context_call)
}
func markS(tag uint, cb func()) { _m(tag, cb) }
func mark0(tag uint, cb func()) { _m(tag, cb) }
func mark1(tag uint, cb func()) { _m(tag, cb) }
func mark2(tag uint, cb func()) { _m(tag, cb) }
func mark3(tag uint, cb func()) { _m(tag, cb) }
func mark4(tag uint, cb func()) { _m(tag, cb) }
func mark5(tag uint, cb func()) { _m(tag, cb) }
func mark6(tag uint, cb func()) { _m(tag, cb) }
func mark7(tag uint, cb func()) { _m(tag, cb) }
func mark8(tag uint, cb func()) { _m(tag, cb) }
func mark9(tag uint, cb func()) { _m(tag, cb) }
func markA(tag uint, cb func()) { _m(tag, cb) }
func markB(tag uint, cb func()) { _m(tag, cb) }
func markC(tag uint, cb func()) { _m(tag, cb) }
func markD(tag uint, cb func()) { _m(tag, cb) }
func markE(tag uint, cb func()) { _m(tag, cb) }
func markF(tag uint, cb func()) { _m(tag, cb) }
var pc_lookup = make(map[uintptr]int8, 17)
var mark_lookup [16]func(uint, func())
func _m(tag_remainder uint, cb func()) {
if tag_remainder == 0 {
cb()
} else {
mark_lookup[tag_remainder&0xf](tag_remainder>>bitWidth, cb)
}
}

101
vendor/github.com/jtolds/gls/stack_tags_js.go generated vendored Normal file
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// +build js
package gls
// This file is used for GopherJS builds, which don't have normal runtime support
import (
"regexp"
"strconv"
"strings"
"github.com/gopherjs/gopherjs/js"
)
var stackRE = regexp.MustCompile("\\s+at (\\S*) \\([^:]+:(\\d+):(\\d+)")
func findPtr() uintptr {
jsStack := js.Global.Get("Error").New().Get("stack").Call("split", "\n")
for i := 1; i < jsStack.Get("length").Int(); i++ {
item := jsStack.Index(i).String()
matches := stackRE.FindAllStringSubmatch(item, -1)
if matches == nil {
return 0
}
pkgPath := matches[0][1]
if strings.HasPrefix(pkgPath, "$packages.github.com/jtolds/gls.mark") {
line, _ := strconv.Atoi(matches[0][2])
char, _ := strconv.Atoi(matches[0][3])
x := (uintptr(line) << 16) | uintptr(char)
return x
}
}
return 0
}
func init() {
setEntries := func(f func(uint, func()), v int8) {
var ptr uintptr
f(0, func() {
ptr = findPtr()
})
pc_lookup[ptr] = v
if v >= 0 {
mark_lookup[v] = f
}
}
setEntries(markS, -0x1)
setEntries(mark0, 0x0)
setEntries(mark1, 0x1)
setEntries(mark2, 0x2)
setEntries(mark3, 0x3)
setEntries(mark4, 0x4)
setEntries(mark5, 0x5)
setEntries(mark6, 0x6)
setEntries(mark7, 0x7)
setEntries(mark8, 0x8)
setEntries(mark9, 0x9)
setEntries(markA, 0xa)
setEntries(markB, 0xb)
setEntries(markC, 0xc)
setEntries(markD, 0xd)
setEntries(markE, 0xe)
setEntries(markF, 0xf)
}
func currentStack(skip int) (stack []uintptr) {
jsStack := js.Global.Get("Error").New().Get("stack").Call("split", "\n")
for i := skip + 2; i < jsStack.Get("length").Int(); i++ {
item := jsStack.Index(i).String()
matches := stackRE.FindAllStringSubmatch(item, -1)
if matches == nil {
return stack
}
line, _ := strconv.Atoi(matches[0][2])
char, _ := strconv.Atoi(matches[0][3])
x := (uintptr(line) << 16) | uintptr(char)&0xffff
stack = append(stack, x)
}
return stack
}
func readStackTags(skip int) (tags []uint) {
stack := currentStack(skip)
var current_tag uint
for _, pc := range stack {
val, ok := pc_lookup[pc]
if !ok {
continue
}
if val < 0 {
tags = append(tags, current_tag)
current_tag = 0
continue
}
current_tag <<= bitWidth
current_tag += uint(val)
}
return
}

61
vendor/github.com/jtolds/gls/stack_tags_main.go generated vendored Normal file
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@ -0,0 +1,61 @@
// +build !js
package gls
// This file is used for standard Go builds, which have the expected runtime support
import (
"reflect"
"runtime"
)
func init() {
setEntries := func(f func(uint, func()), v int8) {
pc_lookup[reflect.ValueOf(f).Pointer()] = v
if v >= 0 {
mark_lookup[v] = f
}
}
setEntries(markS, -0x1)
setEntries(mark0, 0x0)
setEntries(mark1, 0x1)
setEntries(mark2, 0x2)
setEntries(mark3, 0x3)
setEntries(mark4, 0x4)
setEntries(mark5, 0x5)
setEntries(mark6, 0x6)
setEntries(mark7, 0x7)
setEntries(mark8, 0x8)
setEntries(mark9, 0x9)
setEntries(markA, 0xa)
setEntries(markB, 0xb)
setEntries(markC, 0xc)
setEntries(markD, 0xd)
setEntries(markE, 0xe)
setEntries(markF, 0xf)
}
func currentStack(skip int) []uintptr {
stack := make([]uintptr, maxCallers)
return stack[:runtime.Callers(3+skip, stack)]
}
func readStackTags(skip int) (tags []uint) {
stack := currentStack(skip)
var current_tag uint
for _, pc := range stack {
pc = runtime.FuncForPC(pc).Entry()
val, ok := pc_lookup[pc]
if !ok {
continue
}
if val < 0 {
tags = append(tags, current_tag)
current_tag = 0
continue
}
current_tag <<= bitWidth
current_tag += uint(val)
}
return
}

29
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## Contributing to pq
`pq` has a backlog of pull requests, but contributions are still very
much welcome. You can help with patch review, submitting bug reports,
or adding new functionality. There is no formal style guide, but
please conform to the style of existing code and general Go formatting
conventions when submitting patches.
### Patch review
Help review existing open pull requests by commenting on the code or
proposed functionality.
### Bug reports
We appreciate any bug reports, but especially ones with self-contained
(doesn't depend on code outside of pq), minimal (can't be simplified
further) test cases. It's especially helpful if you can submit a pull
request with just the failing test case (you'll probably want to
pattern it after the tests in
[conn_test.go](https://github.com/lib/pq/blob/master/conn_test.go).
### New functionality
There are a number of pending patches for new functionality, so
additional feature patches will take a while to merge. Still, patches
are generally reviewed based on usefulness and complexity in addition
to time-in-queue, so if you have a knockout idea, take a shot. Feel
free to open an issue discussion your proposed patch beforehand.

8
vendor/github.com/lib/pq/LICENSE.md generated vendored Normal file
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Copyright (c) 2011-2013, 'pq' Contributors
Portions Copyright (C) 2011 Blake Mizerany
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

105
vendor/github.com/lib/pq/README.md generated vendored Normal file
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# pq - A pure Go postgres driver for Go's database/sql package
[![Build Status](https://travis-ci.org/lib/pq.png?branch=master)](https://travis-ci.org/lib/pq)
## Install
go get github.com/lib/pq
## Docs
For detailed documentation and basic usage examples, please see the package
documentation at <http://godoc.org/github.com/lib/pq>.
## Tests
`go test` is used for testing. A running PostgreSQL server is
required, with the ability to log in. The default database to connect
to test with is "pqgotest," but it can be overridden using environment
variables.
Example:
PGHOST=/run/postgresql go test github.com/lib/pq
Optionally, a benchmark suite can be run as part of the tests:
PGHOST=/run/postgresql go test -bench .
## Features
* SSL
* Handles bad connections for `database/sql`
* Scan `time.Time` correctly (i.e. `timestamp[tz]`, `time[tz]`, `date`)
* Scan binary blobs correctly (i.e. `bytea`)
* Package for `hstore` support
* COPY FROM support
* pq.ParseURL for converting urls to connection strings for sql.Open.
* Many libpq compatible environment variables
* Unix socket support
* Notifications: `LISTEN`/`NOTIFY`
* pgpass support
## Future / Things you can help with
* Better COPY FROM / COPY TO (see discussion in #181)
## Thank you (alphabetical)
Some of these contributors are from the original library `bmizerany/pq.go` whose
code still exists in here.
* Andy Balholm (andybalholm)
* Ben Berkert (benburkert)
* Benjamin Heatwole (bheatwole)
* Bill Mill (llimllib)
* Bjørn Madsen (aeons)
* Blake Gentry (bgentry)
* Brad Fitzpatrick (bradfitz)
* Charlie Melbye (cmelbye)
* Chris Bandy (cbandy)
* Chris Gilling (cgilling)
* Chris Walsh (cwds)
* Dan Sosedoff (sosedoff)
* Daniel Farina (fdr)
* Eric Chlebek (echlebek)
* Eric Garrido (minusnine)
* Eric Urban (hydrogen18)
* Everyone at The Go Team
* Evan Shaw (edsrzf)
* Ewan Chou (coocood)
* Fazal Majid (fazalmajid)
* Federico Romero (federomero)
* Fumin (fumin)
* Gary Burd (garyburd)
* Heroku (heroku)
* James Pozdena (jpoz)
* Jason McVetta (jmcvetta)
* Jeremy Jay (pbnjay)
* Joakim Sernbrant (serbaut)
* John Gallagher (jgallagher)
* Jonathan Rudenberg (titanous)
* Joël Stemmer (jstemmer)
* Kamil Kisiel (kisielk)
* Kelly Dunn (kellydunn)
* Keith Rarick (kr)
* Kir Shatrov (kirs)
* Lann Martin (lann)
* Maciek Sakrejda (uhoh-itsmaciek)
* Marc Brinkmann (mbr)
* Marko Tiikkaja (johto)
* Matt Newberry (MattNewberry)
* Matt Robenolt (mattrobenolt)
* Martin Olsen (martinolsen)
* Mike Lewis (mikelikespie)
* Nicolas Patry (Narsil)
* Oliver Tonnhofer (olt)
* Patrick Hayes (phayes)
* Paul Hammond (paulhammond)
* Ryan Smith (ryandotsmith)
* Samuel Stauffer (samuel)
* Timothée Peignier (cyberdelia)
* Travis Cline (tmc)
* TruongSinh Tran-Nguyen (truongsinh)
* Yaismel Miranda (ympons)
* notedit (notedit)

727
vendor/github.com/lib/pq/array.go generated vendored Normal file
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package pq
import (
"bytes"
"database/sql"
"database/sql/driver"
"encoding/hex"
"fmt"
"reflect"
"strconv"
"strings"
)
var typeByteSlice = reflect.TypeOf([]byte{})
var typeDriverValuer = reflect.TypeOf((*driver.Valuer)(nil)).Elem()
var typeSqlScanner = reflect.TypeOf((*sql.Scanner)(nil)).Elem()
// Array returns the optimal driver.Valuer and sql.Scanner for an array or
// slice of any dimension.
//
// For example:
// db.Query(`SELECT * FROM t WHERE id = ANY($1)`, pq.Array([]int{235, 401}))
//
// var x []sql.NullInt64
// db.QueryRow('SELECT ARRAY[235, 401]').Scan(pq.Array(&x))
//
// Scanning multi-dimensional arrays is not supported. Arrays where the lower
// bound is not one (such as `[0:0]={1}') are not supported.
func Array(a interface{}) interface {
driver.Valuer
sql.Scanner
} {
switch a := a.(type) {
case []bool:
return (*BoolArray)(&a)
case []float64:
return (*Float64Array)(&a)
case []int64:
return (*Int64Array)(&a)
case []string:
return (*StringArray)(&a)
case *[]bool:
return (*BoolArray)(a)
case *[]float64:
return (*Float64Array)(a)
case *[]int64:
return (*Int64Array)(a)
case *[]string:
return (*StringArray)(a)
}
return GenericArray{a}
}
// ArrayDelimiter may be optionally implemented by driver.Valuer or sql.Scanner
// to override the array delimiter used by GenericArray.
type ArrayDelimiter interface {
// ArrayDelimiter returns the delimiter character(s) for this element's type.
ArrayDelimiter() string
}
// BoolArray represents a one-dimensional array of the PostgreSQL boolean type.
type BoolArray []bool
// Scan implements the sql.Scanner interface.
func (a *BoolArray) Scan(src interface{}) error {
switch src := src.(type) {
case []byte:
return a.scanBytes(src)
case string:
return a.scanBytes([]byte(src))
}
return fmt.Errorf("pq: cannot convert %T to BoolArray", src)
}
func (a *BoolArray) scanBytes(src []byte) error {
elems, err := scanLinearArray(src, []byte{','}, "BoolArray")
if err != nil {
return err
}
if len(elems) == 0 {
*a = (*a)[:0]
} else {
b := make(BoolArray, len(elems))
for i, v := range elems {
if len(v) != 1 {
return fmt.Errorf("pq: could not parse boolean array index %d: invalid boolean %q", i, v)
}
switch v[0] {
case 't':
b[i] = true
case 'f':
b[i] = false
default:
return fmt.Errorf("pq: could not parse boolean array index %d: invalid boolean %q", i, v)
}
}
*a = b
}
return nil
}
// Value implements the driver.Valuer interface.
func (a BoolArray) Value() (driver.Value, error) {
if a == nil {
return nil, nil
}
if n := len(a); n > 0 {
// There will be exactly two curly brackets, N bytes of values,
// and N-1 bytes of delimiters.
b := make([]byte, 1+2*n)
for i := 0; i < n; i++ {
b[2*i] = ','
if a[i] {
b[1+2*i] = 't'
} else {
b[1+2*i] = 'f'
}
}
b[0] = '{'
b[2*n] = '}'
return string(b), nil
}
return "{}", nil
}
// ByteaArray represents a one-dimensional array of the PostgreSQL bytea type.
type ByteaArray [][]byte
// Scan implements the sql.Scanner interface.
func (a *ByteaArray) Scan(src interface{}) error {
switch src := src.(type) {
case []byte:
return a.scanBytes(src)
case string:
return a.scanBytes([]byte(src))
}
return fmt.Errorf("pq: cannot convert %T to ByteaArray", src)
}
func (a *ByteaArray) scanBytes(src []byte) error {
elems, err := scanLinearArray(src, []byte{','}, "ByteaArray")
if err != nil {
return err
}
if len(elems) == 0 {
*a = (*a)[:0]
} else {
b := make(ByteaArray, len(elems))
for i, v := range elems {
b[i], err = parseBytea(v)
if err != nil {
return fmt.Errorf("could not parse bytea array index %d: %s", i, err.Error())
}
}
*a = b
}
return nil
}
// Value implements the driver.Valuer interface. It uses the "hex" format which
// is only supported on PostgreSQL 9.0 or newer.
func (a ByteaArray) Value() (driver.Value, error) {
if a == nil {
return nil, nil
}
if n := len(a); n > 0 {
// There will be at least two curly brackets, 2*N bytes of quotes,
// 3*N bytes of hex formatting, and N-1 bytes of delimiters.
size := 1 + 6*n
for _, x := range a {
size += hex.EncodedLen(len(x))
}
b := make([]byte, size)
for i, s := 0, b; i < n; i++ {
o := copy(s, `,"\\x`)
o += hex.Encode(s[o:], a[i])
s[o] = '"'
s = s[o+1:]
}
b[0] = '{'
b[size-1] = '}'
return string(b), nil
}
return "{}", nil
}
// Float64Array represents a one-dimensional array of the PostgreSQL double
// precision type.
type Float64Array []float64
// Scan implements the sql.Scanner interface.
func (a *Float64Array) Scan(src interface{}) error {
switch src := src.(type) {
case []byte:
return a.scanBytes(src)
case string:
return a.scanBytes([]byte(src))
}
return fmt.Errorf("pq: cannot convert %T to Float64Array", src)
}
func (a *Float64Array) scanBytes(src []byte) error {
elems, err := scanLinearArray(src, []byte{','}, "Float64Array")
if err != nil {
return err
}
if len(elems) == 0 {
*a = (*a)[:0]
} else {
b := make(Float64Array, len(elems))
for i, v := range elems {
if b[i], err = strconv.ParseFloat(string(v), 64); err != nil {
return fmt.Errorf("pq: parsing array element index %d: %v", i, err)
}
}
*a = b
}
return nil
}
// Value implements the driver.Valuer interface.
func (a Float64Array) Value() (driver.Value, error) {
if a == nil {
return nil, nil
}
if n := len(a); n > 0 {
// There will be at least two curly brackets, N bytes of values,
// and N-1 bytes of delimiters.
b := make([]byte, 1, 1+2*n)
b[0] = '{'
b = strconv.AppendFloat(b, a[0], 'f', -1, 64)
for i := 1; i < n; i++ {
b = append(b, ',')
b = strconv.AppendFloat(b, a[i], 'f', -1, 64)
}
return string(append(b, '}')), nil
}
return "{}", nil
}
// GenericArray implements the driver.Valuer and sql.Scanner interfaces for
// an array or slice of any dimension.
type GenericArray struct{ A interface{} }
func (GenericArray) evaluateDestination(rt reflect.Type) (reflect.Type, func([]byte, reflect.Value) error, string) {
var assign func([]byte, reflect.Value) error
var del = ","
// TODO calculate the assign function for other types
// TODO repeat this section on the element type of arrays or slices (multidimensional)
{
if reflect.PtrTo(rt).Implements(typeSqlScanner) {
// dest is always addressable because it is an element of a slice.
assign = func(src []byte, dest reflect.Value) (err error) {
ss := dest.Addr().Interface().(sql.Scanner)
if src == nil {
err = ss.Scan(nil)
} else {
err = ss.Scan(src)
}
return
}
goto FoundType
}
assign = func([]byte, reflect.Value) error {
return fmt.Errorf("pq: scanning to %s is not implemented; only sql.Scanner", rt)
}
}
FoundType:
if ad, ok := reflect.Zero(rt).Interface().(ArrayDelimiter); ok {
del = ad.ArrayDelimiter()
}
return rt, assign, del
}
// Scan implements the sql.Scanner interface.
func (a GenericArray) Scan(src interface{}) error {
dpv := reflect.ValueOf(a.A)
switch {
case dpv.Kind() != reflect.Ptr:
return fmt.Errorf("pq: destination %T is not a pointer to array or slice", a.A)
case dpv.IsNil():
return fmt.Errorf("pq: destination %T is nil", a.A)
}
dv := dpv.Elem()
switch dv.Kind() {
case reflect.Slice:
case reflect.Array:
default:
return fmt.Errorf("pq: destination %T is not a pointer to array or slice", a.A)
}
switch src := src.(type) {
case []byte:
return a.scanBytes(src, dv)
case string:
return a.scanBytes([]byte(src), dv)
}
return fmt.Errorf("pq: cannot convert %T to %s", src, dv.Type())
}
func (a GenericArray) scanBytes(src []byte, dv reflect.Value) error {
dtype, assign, del := a.evaluateDestination(dv.Type().Elem())
dims, elems, err := parseArray(src, []byte(del))
if err != nil {
return err
}
// TODO allow multidimensional
if len(dims) > 1 {
return fmt.Errorf("pq: scanning from multidimensional ARRAY%s is not implemented",
strings.Replace(fmt.Sprint(dims), " ", "][", -1))
}
// Treat a zero-dimensional array like an array with a single dimension of zero.
if len(dims) == 0 {
dims = append(dims, 0)
}
for i, rt := 0, dv.Type(); i < len(dims); i, rt = i+1, rt.Elem() {
switch rt.Kind() {
case reflect.Slice:
case reflect.Array:
if rt.Len() != dims[i] {
return fmt.Errorf("pq: cannot convert ARRAY%s to %s",
strings.Replace(fmt.Sprint(dims), " ", "][", -1), dv.Type())
}
default:
// TODO handle multidimensional
}
}
values := reflect.MakeSlice(reflect.SliceOf(dtype), len(elems), len(elems))
for i, e := range elems {
if err := assign(e, values.Index(i)); err != nil {
return fmt.Errorf("pq: parsing array element index %d: %v", i, err)
}
}
// TODO handle multidimensional
switch dv.Kind() {
case reflect.Slice:
dv.Set(values.Slice(0, dims[0]))
case reflect.Array:
for i := 0; i < dims[0]; i++ {
dv.Index(i).Set(values.Index(i))
}
}
return nil
}
// Value implements the driver.Valuer interface.
func (a GenericArray) Value() (driver.Value, error) {
if a.A == nil {
return nil, nil
}
rv := reflect.ValueOf(a.A)
if k := rv.Kind(); k != reflect.Array && k != reflect.Slice {
return nil, fmt.Errorf("pq: Unable to convert %T to array", a.A)
}
if n := rv.Len(); n > 0 {
// There will be at least two curly brackets, N bytes of values,
// and N-1 bytes of delimiters.
b := make([]byte, 0, 1+2*n)
b, _, err := appendArray(b, rv, n)
return string(b), err
}
return "{}", nil
}
// Int64Array represents a one-dimensional array of the PostgreSQL integer types.
type Int64Array []int64
// Scan implements the sql.Scanner interface.
func (a *Int64Array) Scan(src interface{}) error {
switch src := src.(type) {
case []byte:
return a.scanBytes(src)
case string:
return a.scanBytes([]byte(src))
}
return fmt.Errorf("pq: cannot convert %T to Int64Array", src)
}
func (a *Int64Array) scanBytes(src []byte) error {
elems, err := scanLinearArray(src, []byte{','}, "Int64Array")
if err != nil {
return err
}
if len(elems) == 0 {
*a = (*a)[:0]
} else {
b := make(Int64Array, len(elems))
for i, v := range elems {
if b[i], err = strconv.ParseInt(string(v), 10, 64); err != nil {
return fmt.Errorf("pq: parsing array element index %d: %v", i, err)
}
}
*a = b
}
return nil
}
// Value implements the driver.Valuer interface.
func (a Int64Array) Value() (driver.Value, error) {
if a == nil {
return nil, nil
}
if n := len(a); n > 0 {
// There will be at least two curly brackets, N bytes of values,
// and N-1 bytes of delimiters.
b := make([]byte, 1, 1+2*n)
b[0] = '{'
b = strconv.AppendInt(b, a[0], 10)
for i := 1; i < n; i++ {
b = append(b, ',')
b = strconv.AppendInt(b, a[i], 10)
}
return string(append(b, '}')), nil
}
return "{}", nil
}
// StringArray represents a one-dimensional array of the PostgreSQL character types.
type StringArray []string
// Scan implements the sql.Scanner interface.
func (a *StringArray) Scan(src interface{}) error {
switch src := src.(type) {
case []byte:
return a.scanBytes(src)
case string:
return a.scanBytes([]byte(src))
}
return fmt.Errorf("pq: cannot convert %T to StringArray", src)
}
func (a *StringArray) scanBytes(src []byte) error {
elems, err := scanLinearArray(src, []byte{','}, "StringArray")
if err != nil {
return err
}
if len(elems) == 0 {
*a = (*a)[:0]
} else {
b := make(StringArray, len(elems))
for i, v := range elems {
if b[i] = string(v); v == nil {
return fmt.Errorf("pq: parsing array element index %d: cannot convert nil to string", i)
}
}
*a = b
}
return nil
}
// Value implements the driver.Valuer interface.
func (a StringArray) Value() (driver.Value, error) {
if a == nil {
return nil, nil
}
if n := len(a); n > 0 {
// There will be at least two curly brackets, 2*N bytes of quotes,
// and N-1 bytes of delimiters.
b := make([]byte, 1, 1+3*n)
b[0] = '{'
b = appendArrayQuotedBytes(b, []byte(a[0]))
for i := 1; i < n; i++ {
b = append(b, ',')
b = appendArrayQuotedBytes(b, []byte(a[i]))
}
return string(append(b, '}')), nil
}
return "{}", nil
}
// appendArray appends rv to the buffer, returning the extended buffer and
// the delimiter used between elements.
//
// It panics when n <= 0 or rv's Kind is not reflect.Array nor reflect.Slice.
func appendArray(b []byte, rv reflect.Value, n int) ([]byte, string, error) {
var del string
var err error
b = append(b, '{')
if b, del, err = appendArrayElement(b, rv.Index(0)); err != nil {
return b, del, err
}
for i := 1; i < n; i++ {
b = append(b, del...)
if b, del, err = appendArrayElement(b, rv.Index(i)); err != nil {
return b, del, err
}
}
return append(b, '}'), del, nil
}
// appendArrayElement appends rv to the buffer, returning the extended buffer
// and the delimiter to use before the next element.
//
// When rv's Kind is neither reflect.Array nor reflect.Slice, it is converted
// using driver.DefaultParameterConverter and the resulting []byte or string
// is double-quoted.
//
// See http://www.postgresql.org/docs/current/static/arrays.html#ARRAYS-IO
func appendArrayElement(b []byte, rv reflect.Value) ([]byte, string, error) {
if k := rv.Kind(); k == reflect.Array || k == reflect.Slice {
if t := rv.Type(); t != typeByteSlice && !t.Implements(typeDriverValuer) {
if n := rv.Len(); n > 0 {
return appendArray(b, rv, n)
}
return b, "", nil
}
}
var del string = ","
var err error
var iv interface{} = rv.Interface()
if ad, ok := iv.(ArrayDelimiter); ok {
del = ad.ArrayDelimiter()
}
if iv, err = driver.DefaultParameterConverter.ConvertValue(iv); err != nil {
return b, del, err
}
switch v := iv.(type) {
case nil:
return append(b, "NULL"...), del, nil
case []byte:
return appendArrayQuotedBytes(b, v), del, nil
case string:
return appendArrayQuotedBytes(b, []byte(v)), del, nil
}
b, err = appendValue(b, iv)
return b, del, err
}
func appendArrayQuotedBytes(b, v []byte) []byte {
b = append(b, '"')
for {
i := bytes.IndexAny(v, `"\`)
if i < 0 {
b = append(b, v...)
break
}
if i > 0 {
b = append(b, v[:i]...)
}
b = append(b, '\\', v[i])
v = v[i+1:]
}
return append(b, '"')
}
func appendValue(b []byte, v driver.Value) ([]byte, error) {
return append(b, encode(nil, v, 0)...), nil
}
// parseArray extracts the dimensions and elements of an array represented in
// text format. Only representations emitted by the backend are supported.
// Notably, whitespace around brackets and delimiters is significant, and NULL
// is case-sensitive.
//
// See http://www.postgresql.org/docs/current/static/arrays.html#ARRAYS-IO
func parseArray(src, del []byte) (dims []int, elems [][]byte, err error) {
var depth, i int
if len(src) < 1 || src[0] != '{' {
return nil, nil, fmt.Errorf("pq: unable to parse array; expected %q at offset %d", '{', 0)
}
Open:
for i < len(src) {
switch src[i] {
case '{':
depth++
i++
case '}':
elems = make([][]byte, 0)
goto Close
default:
break Open
}
}
dims = make([]int, i)
Element:
for i < len(src) {
switch src[i] {
case '{':
depth++
dims[depth-1] = 0
i++
case '"':
var elem = []byte{}
var escape bool
for i++; i < len(src); i++ {
if escape {
elem = append(elem, src[i])
escape = false
} else {
switch src[i] {
default:
elem = append(elem, src[i])
case '\\':
escape = true
case '"':
elems = append(elems, elem)
i++
break Element
}
}
}
default:
for start := i; i < len(src); i++ {
if bytes.HasPrefix(src[i:], del) || src[i] == '}' {
elem := src[start:i]
if len(elem) == 0 {
return nil, nil, fmt.Errorf("pq: unable to parse array; unexpected %q at offset %d", src[i], i)
}
if bytes.Equal(elem, []byte("NULL")) {
elem = nil
}
elems = append(elems, elem)
break Element
}
}
}
}
for i < len(src) {
if bytes.HasPrefix(src[i:], del) {
dims[depth-1]++
i += len(del)
goto Element
} else if src[i] == '}' {
dims[depth-1]++
depth--
i++
} else {
return nil, nil, fmt.Errorf("pq: unable to parse array; unexpected %q at offset %d", src[i], i)
}
}
Close:
for i < len(src) {
if src[i] == '}' && depth > 0 {
depth--
i++
} else {
return nil, nil, fmt.Errorf("pq: unable to parse array; unexpected %q at offset %d", src[i], i)
}
}
if depth > 0 {
err = fmt.Errorf("pq: unable to parse array; expected %q at offset %d", '}', i)
}
if err == nil {
for _, d := range dims {
if (len(elems) % d) != 0 {
err = fmt.Errorf("pq: multidimensional arrays must have elements with matching dimensions")
}
}
}
return
}
func scanLinearArray(src, del []byte, typ string) (elems [][]byte, err error) {
dims, elems, err := parseArray(src, del)
if err != nil {
return nil, err
}
if len(dims) > 1 {
return nil, fmt.Errorf("pq: cannot convert ARRAY%s to %s", strings.Replace(fmt.Sprint(dims), " ", "][", -1), typ)
}
return elems, err
}

91
vendor/github.com/lib/pq/buf.go generated vendored Normal file
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package pq
import (
"bytes"
"encoding/binary"
"github.com/lib/pq/oid"
)
type readBuf []byte
func (b *readBuf) int32() (n int) {
n = int(int32(binary.BigEndian.Uint32(*b)))
*b = (*b)[4:]
return
}
func (b *readBuf) oid() (n oid.Oid) {
n = oid.Oid(binary.BigEndian.Uint32(*b))
*b = (*b)[4:]
return
}
// N.B: this is actually an unsigned 16-bit integer, unlike int32
func (b *readBuf) int16() (n int) {
n = int(binary.BigEndian.Uint16(*b))
*b = (*b)[2:]
return
}
func (b *readBuf) string() string {
i := bytes.IndexByte(*b, 0)
if i < 0 {
errorf("invalid message format; expected string terminator")
}
s := (*b)[:i]
*b = (*b)[i+1:]
return string(s)
}
func (b *readBuf) next(n int) (v []byte) {
v = (*b)[:n]
*b = (*b)[n:]
return
}
func (b *readBuf) byte() byte {
return b.next(1)[0]
}
type writeBuf struct {
buf []byte
pos int
}
func (b *writeBuf) int32(n int) {
x := make([]byte, 4)
binary.BigEndian.PutUint32(x, uint32(n))
b.buf = append(b.buf, x...)
}
func (b *writeBuf) int16(n int) {
x := make([]byte, 2)
binary.BigEndian.PutUint16(x, uint16(n))
b.buf = append(b.buf, x...)
}
func (b *writeBuf) string(s string) {
b.buf = append(b.buf, (s + "\000")...)
}
func (b *writeBuf) byte(c byte) {
b.buf = append(b.buf, c)
}
func (b *writeBuf) bytes(v []byte) {
b.buf = append(b.buf, v...)
}
func (b *writeBuf) wrap() []byte {
p := b.buf[b.pos:]
binary.BigEndian.PutUint32(p, uint32(len(p)))
return b.buf
}
func (b *writeBuf) next(c byte) {
p := b.buf[b.pos:]
binary.BigEndian.PutUint32(p, uint32(len(p)))
b.pos = len(b.buf) + 1
b.buf = append(b.buf, c, 0, 0, 0, 0)
}

1862
vendor/github.com/lib/pq/conn.go generated vendored Normal file
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267
vendor/github.com/lib/pq/copy.go generated vendored Normal file
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package pq
import (
"database/sql/driver"
"encoding/binary"
"errors"
"fmt"
"sync"
)
var (
errCopyInClosed = errors.New("pq: copyin statement has already been closed")
errBinaryCopyNotSupported = errors.New("pq: only text format supported for COPY")
errCopyToNotSupported = errors.New("pq: COPY TO is not supported")
errCopyNotSupportedOutsideTxn = errors.New("pq: COPY is only allowed inside a transaction")
)
// CopyIn creates a COPY FROM statement which can be prepared with
// Tx.Prepare(). The target table should be visible in search_path.
func CopyIn(table string, columns ...string) string {
stmt := "COPY " + QuoteIdentifier(table) + " ("
for i, col := range columns {
if i != 0 {
stmt += ", "
}
stmt += QuoteIdentifier(col)
}
stmt += ") FROM STDIN"
return stmt
}
// CopyInSchema creates a COPY FROM statement which can be prepared with
// Tx.Prepare().
func CopyInSchema(schema, table string, columns ...string) string {
stmt := "COPY " + QuoteIdentifier(schema) + "." + QuoteIdentifier(table) + " ("
for i, col := range columns {
if i != 0 {
stmt += ", "
}
stmt += QuoteIdentifier(col)
}
stmt += ") FROM STDIN"
return stmt
}
type copyin struct {
cn *conn
buffer []byte
rowData chan []byte
done chan bool
closed bool
sync.Mutex // guards err
err error
}
const ciBufferSize = 64 * 1024
// flush buffer before the buffer is filled up and needs reallocation
const ciBufferFlushSize = 63 * 1024
func (cn *conn) prepareCopyIn(q string) (_ driver.Stmt, err error) {
if !cn.isInTransaction() {
return nil, errCopyNotSupportedOutsideTxn
}
ci := &copyin{
cn: cn,
buffer: make([]byte, 0, ciBufferSize),
rowData: make(chan []byte),
done: make(chan bool, 1),
}
// add CopyData identifier + 4 bytes for message length
ci.buffer = append(ci.buffer, 'd', 0, 0, 0, 0)
b := cn.writeBuf('Q')
b.string(q)
cn.send(b)
awaitCopyInResponse:
for {
t, r := cn.recv1()
switch t {
case 'G':
if r.byte() != 0 {
err = errBinaryCopyNotSupported
break awaitCopyInResponse
}
go ci.resploop()
return ci, nil
case 'H':
err = errCopyToNotSupported
break awaitCopyInResponse
case 'E':
err = parseError(r)
case 'Z':
if err == nil {
cn.bad = true
errorf("unexpected ReadyForQuery in response to COPY")
}
cn.processReadyForQuery(r)
return nil, err
default:
cn.bad = true
errorf("unknown response for copy query: %q", t)
}
}
// something went wrong, abort COPY before we return
b = cn.writeBuf('f')
b.string(err.Error())
cn.send(b)
for {
t, r := cn.recv1()
switch t {
case 'c', 'C', 'E':
case 'Z':
// correctly aborted, we're done
cn.processReadyForQuery(r)
return nil, err
default:
cn.bad = true
errorf("unknown response for CopyFail: %q", t)
}
}
}
func (ci *copyin) flush(buf []byte) {
// set message length (without message identifier)
binary.BigEndian.PutUint32(buf[1:], uint32(len(buf)-1))
_, err := ci.cn.c.Write(buf)
if err != nil {
panic(err)
}
}
func (ci *copyin) resploop() {
for {
var r readBuf
t, err := ci.cn.recvMessage(&r)
if err != nil {
ci.cn.bad = true
ci.setError(err)
ci.done <- true
return
}
switch t {
case 'C':
// complete
case 'N':
// NoticeResponse
case 'Z':
ci.cn.processReadyForQuery(&r)
ci.done <- true
return
case 'E':
err := parseError(&r)
ci.setError(err)
default:
ci.cn.bad = true
ci.setError(fmt.Errorf("unknown response during CopyIn: %q", t))
ci.done <- true
return
}
}
}
func (ci *copyin) isErrorSet() bool {
ci.Lock()
isSet := (ci.err != nil)
ci.Unlock()
return isSet
}
// setError() sets ci.err if one has not been set already. Caller must not be
// holding ci.Mutex.
func (ci *copyin) setError(err error) {
ci.Lock()
if ci.err == nil {
ci.err = err
}
ci.Unlock()
}
func (ci *copyin) NumInput() int {
return -1
}
func (ci *copyin) Query(v []driver.Value) (r driver.Rows, err error) {
return nil, ErrNotSupported
}
// Exec inserts values into the COPY stream. The insert is asynchronous
// and Exec can return errors from previous Exec calls to the same
// COPY stmt.
//
// You need to call Exec(nil) to sync the COPY stream and to get any
// errors from pending data, since Stmt.Close() doesn't return errors
// to the user.
func (ci *copyin) Exec(v []driver.Value) (r driver.Result, err error) {
if ci.closed {
return nil, errCopyInClosed
}
if ci.cn.bad {
return nil, driver.ErrBadConn
}
defer ci.cn.errRecover(&err)
if ci.isErrorSet() {
return nil, ci.err
}
if len(v) == 0 {
return nil, ci.Close()
}
numValues := len(v)
for i, value := range v {
ci.buffer = appendEncodedText(&ci.cn.parameterStatus, ci.buffer, value)
if i < numValues-1 {
ci.buffer = append(ci.buffer, '\t')
}
}
ci.buffer = append(ci.buffer, '\n')
if len(ci.buffer) > ciBufferFlushSize {
ci.flush(ci.buffer)
// reset buffer, keep bytes for message identifier and length
ci.buffer = ci.buffer[:5]
}
return driver.RowsAffected(0), nil
}
func (ci *copyin) Close() (err error) {
if ci.closed { // Don't do anything, we're already closed
return nil
}
ci.closed = true
if ci.cn.bad {
return driver.ErrBadConn
}
defer ci.cn.errRecover(&err)
if len(ci.buffer) > 0 {
ci.flush(ci.buffer)
}
// Avoid touching the scratch buffer as resploop could be using it.
err = ci.cn.sendSimpleMessage('c')
if err != nil {
return err
}
<-ci.done
if ci.isErrorSet() {
err = ci.err
return err
}
return nil
}

212
vendor/github.com/lib/pq/doc.go generated vendored Normal file
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/*
Package pq is a pure Go Postgres driver for the database/sql package.
In most cases clients will use the database/sql package instead of
using this package directly. For example:
import (
"database/sql"
_ "github.com/lib/pq"
)
func main() {
db, err := sql.Open("postgres", "user=pqgotest dbname=pqgotest sslmode=verify-full")
if err != nil {
log.Fatal(err)
}
age := 21
rows, err := db.Query("SELECT name FROM users WHERE age = $1", age)
…
}
You can also connect to a database using a URL. For example:
db, err := sql.Open("postgres", "postgres://pqgotest:password@localhost/pqgotest?sslmode=verify-full")
Connection String Parameters
Similarly to libpq, when establishing a connection using pq you are expected to
supply a connection string containing zero or more parameters.
A subset of the connection parameters supported by libpq are also supported by pq.
Additionally, pq also lets you specify run-time parameters (such as search_path or work_mem)
directly in the connection string. This is different from libpq, which does not allow
run-time parameters in the connection string, instead requiring you to supply
them in the options parameter.
For compatibility with libpq, the following special connection parameters are
supported:
* dbname - The name of the database to connect to
* user - The user to sign in as
* password - The user's password
* host - The host to connect to. Values that start with / are for unix domain sockets. (default is localhost)
* port - The port to bind to. (default is 5432)
* sslmode - Whether or not to use SSL (default is require, this is not the default for libpq)
* fallback_application_name - An application_name to fall back to if one isn't provided.
* connect_timeout - Maximum wait for connection, in seconds. Zero or not specified means wait indefinitely.
* sslcert - Cert file location. The file must contain PEM encoded data.
* sslkey - Key file location. The file must contain PEM encoded data.
* sslrootcert - The location of the root certificate file. The file must contain PEM encoded data.
Valid values for sslmode are:
* disable - No SSL
* require - Always SSL (skip verification)
* verify-ca - Always SSL (verify that the certificate presented by the server was signed by a trusted CA)
* verify-full - Always SSL (verify that the certification presented by the server was signed by a trusted CA and the server host name matches the one in the certificate)
See http://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-CONNSTRING
for more information about connection string parameters.
Use single quotes for values that contain whitespace:
"user=pqgotest password='with spaces'"
A backslash will escape the next character in values:
"user=space\ man password='it\'s valid'
Note that the connection parameter client_encoding (which sets the
text encoding for the connection) may be set but must be "UTF8",
matching with the same rules as Postgres. It is an error to provide
any other value.
In addition to the parameters listed above, any run-time parameter that can be
set at backend start time can be set in the connection string. For more
information, see
http://www.postgresql.org/docs/current/static/runtime-config.html.
Most environment variables as specified at http://www.postgresql.org/docs/current/static/libpq-envars.html
supported by libpq are also supported by pq. If any of the environment
variables not supported by pq are set, pq will panic during connection
establishment. Environment variables have a lower precedence than explicitly
provided connection parameters.
The pgpass mechanism as described in http://www.postgresql.org/docs/current/static/libpq-pgpass.html
is supported, but on Windows PGPASSFILE must be specified explicitly.
Queries
database/sql does not dictate any specific format for parameter
markers in query strings, and pq uses the Postgres-native ordinal markers,
as shown above. The same marker can be reused for the same parameter:
rows, err := db.Query(`SELECT name FROM users WHERE favorite_fruit = $1
OR age BETWEEN $2 AND $2 + 3`, "orange", 64)
pq does not support the LastInsertId() method of the Result type in database/sql.
To return the identifier of an INSERT (or UPDATE or DELETE), use the Postgres
RETURNING clause with a standard Query or QueryRow call:
var userid int
err := db.QueryRow(`INSERT INTO users(name, favorite_fruit, age)
VALUES('beatrice', 'starfruit', 93) RETURNING id`).Scan(&userid)
For more details on RETURNING, see the Postgres documentation:
http://www.postgresql.org/docs/current/static/sql-insert.html
http://www.postgresql.org/docs/current/static/sql-update.html
http://www.postgresql.org/docs/current/static/sql-delete.html
For additional instructions on querying see the documentation for the database/sql package.
Errors
pq may return errors of type *pq.Error which can be interrogated for error details:
if err, ok := err.(*pq.Error); ok {
fmt.Println("pq error:", err.Code.Name())
}
See the pq.Error type for details.
Bulk imports
You can perform bulk imports by preparing a statement returned by pq.CopyIn (or
pq.CopyInSchema) in an explicit transaction (sql.Tx). The returned statement
handle can then be repeatedly "executed" to copy data into the target table.
After all data has been processed you should call Exec() once with no arguments
to flush all buffered data. Any call to Exec() might return an error which
should be handled appropriately, but because of the internal buffering an error
returned by Exec() might not be related to the data passed in the call that
failed.
CopyIn uses COPY FROM internally. It is not possible to COPY outside of an
explicit transaction in pq.
Usage example:
txn, err := db.Begin()
if err != nil {
log.Fatal(err)
}
stmt, err := txn.Prepare(pq.CopyIn("users", "name", "age"))
if err != nil {
log.Fatal(err)
}
for _, user := range users {
_, err = stmt.Exec(user.Name, int64(user.Age))
if err != nil {
log.Fatal(err)
}
}
_, err = stmt.Exec()
if err != nil {
log.Fatal(err)
}
err = stmt.Close()
if err != nil {
log.Fatal(err)
}
err = txn.Commit()
if err != nil {
log.Fatal(err)
}
Notifications
PostgreSQL supports a simple publish/subscribe model over database
connections. See http://www.postgresql.org/docs/current/static/sql-notify.html
for more information about the general mechanism.
To start listening for notifications, you first have to open a new connection
to the database by calling NewListener. This connection can not be used for
anything other than LISTEN / NOTIFY. Calling Listen will open a "notification
channel"; once a notification channel is open, a notification generated on that
channel will effect a send on the Listener.Notify channel. A notification
channel will remain open until Unlisten is called, though connection loss might
result in some notifications being lost. To solve this problem, Listener sends
a nil pointer over the Notify channel any time the connection is re-established
following a connection loss. The application can get information about the
state of the underlying connection by setting an event callback in the call to
NewListener.
A single Listener can safely be used from concurrent goroutines, which means
that there is often no need to create more than one Listener in your
application. However, a Listener is always connected to a single database, so
you will need to create a new Listener instance for every database you want to
receive notifications in.
The channel name in both Listen and Unlisten is case sensitive, and can contain
any characters legal in an identifier (see
http://www.postgresql.org/docs/current/static/sql-syntax-lexical.html#SQL-SYNTAX-IDENTIFIERS
for more information). Note that the channel name will be truncated to 63
bytes by the PostgreSQL server.
You can find a complete, working example of Listener usage at
http://godoc.org/github.com/lib/pq/listen_example.
*/
package pq

589
vendor/github.com/lib/pq/encode.go generated vendored Normal file
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package pq
import (
"bytes"
"database/sql/driver"
"encoding/binary"
"encoding/hex"
"errors"
"fmt"
"math"
"strconv"
"strings"
"sync"
"time"
"github.com/lib/pq/oid"
)
func binaryEncode(parameterStatus *parameterStatus, x interface{}) []byte {
switch v := x.(type) {
case []byte:
return v
default:
return encode(parameterStatus, x, oid.T_unknown)
}
}
func encode(parameterStatus *parameterStatus, x interface{}, pgtypOid oid.Oid) []byte {
switch v := x.(type) {
case int64:
return strconv.AppendInt(nil, v, 10)
case float64:
return strconv.AppendFloat(nil, v, 'f', -1, 64)
case []byte:
if pgtypOid == oid.T_bytea {
return encodeBytea(parameterStatus.serverVersion, v)
}
return v
case string:
if pgtypOid == oid.T_bytea {
return encodeBytea(parameterStatus.serverVersion, []byte(v))
}
return []byte(v)
case bool:
return strconv.AppendBool(nil, v)
case time.Time:
return formatTs(v)
default:
errorf("encode: unknown type for %T", v)
}
panic("not reached")
}
func decode(parameterStatus *parameterStatus, s []byte, typ oid.Oid, f format) interface{} {
switch f {
case formatBinary:
return binaryDecode(parameterStatus, s, typ)
case formatText:
return textDecode(parameterStatus, s, typ)
default:
panic("not reached")
}
}
func binaryDecode(parameterStatus *parameterStatus, s []byte, typ oid.Oid) interface{} {
switch typ {
case oid.T_bytea:
return s
case oid.T_int8:
return int64(binary.BigEndian.Uint64(s))
case oid.T_int4:
return int64(int32(binary.BigEndian.Uint32(s)))
case oid.T_int2:
return int64(int16(binary.BigEndian.Uint16(s)))
default:
errorf("don't know how to decode binary parameter of type %d", uint32(typ))
}
panic("not reached")
}
func textDecode(parameterStatus *parameterStatus, s []byte, typ oid.Oid) interface{} {
switch typ {
case oid.T_char, oid.T_varchar, oid.T_text:
return string(s)
case oid.T_bytea:
b, err := parseBytea(s)
if err != nil {
errorf("%s", err)
}
return b
case oid.T_timestamptz:
return parseTs(parameterStatus.currentLocation, string(s))
case oid.T_timestamp, oid.T_date:
return parseTs(nil, string(s))
case oid.T_time:
return mustParse("15:04:05", typ, s)
case oid.T_timetz:
return mustParse("15:04:05-07", typ, s)
case oid.T_bool:
return s[0] == 't'
case oid.T_int8, oid.T_int4, oid.T_int2:
i, err := strconv.ParseInt(string(s), 10, 64)
if err != nil {
errorf("%s", err)
}
return i
case oid.T_float4, oid.T_float8:
bits := 64
if typ == oid.T_float4 {
bits = 32
}
f, err := strconv.ParseFloat(string(s), bits)
if err != nil {
errorf("%s", err)
}
return f
}
return s
}
// appendEncodedText encodes item in text format as required by COPY
// and appends to buf
func appendEncodedText(parameterStatus *parameterStatus, buf []byte, x interface{}) []byte {
switch v := x.(type) {
case int64:
return strconv.AppendInt(buf, v, 10)
case float64:
return strconv.AppendFloat(buf, v, 'f', -1, 64)
case []byte:
encodedBytea := encodeBytea(parameterStatus.serverVersion, v)
return appendEscapedText(buf, string(encodedBytea))
case string:
return appendEscapedText(buf, v)
case bool:
return strconv.AppendBool(buf, v)
case time.Time:
return append(buf, formatTs(v)...)
case nil:
return append(buf, "\\N"...)
default:
errorf("encode: unknown type for %T", v)
}
panic("not reached")
}
func appendEscapedText(buf []byte, text string) []byte {
escapeNeeded := false
startPos := 0
var c byte
// check if we need to escape
for i := 0; i < len(text); i++ {
c = text[i]
if c == '\\' || c == '\n' || c == '\r' || c == '\t' {
escapeNeeded = true
startPos = i
break
}
}
if !escapeNeeded {
return append(buf, text...)
}
// copy till first char to escape, iterate the rest
result := append(buf, text[:startPos]...)
for i := startPos; i < len(text); i++ {
c = text[i]
switch c {
case '\\':
result = append(result, '\\', '\\')
case '\n':
result = append(result, '\\', 'n')
case '\r':
result = append(result, '\\', 'r')
case '\t':
result = append(result, '\\', 't')
default:
result = append(result, c)
}
}
return result
}
func mustParse(f string, typ oid.Oid, s []byte) time.Time {
str := string(s)
// check for a 30-minute-offset timezone
if (typ == oid.T_timestamptz || typ == oid.T_timetz) &&
str[len(str)-3] == ':' {
f += ":00"
}
t, err := time.Parse(f, str)
if err != nil {
errorf("decode: %s", err)
}
return t
}
var errInvalidTimestamp = errors.New("invalid timestamp")
type timestampParser struct {
err error
}
func (p *timestampParser) expect(str string, char byte, pos int) {
if p.err != nil {
return
}
if pos+1 > len(str) {
p.err = errInvalidTimestamp
return
}
if c := str[pos]; c != char && p.err == nil {
p.err = fmt.Errorf("expected '%v' at position %v; got '%v'", char, pos, c)
}
}
func (p *timestampParser) mustAtoi(str string, begin int, end int) int {
if p.err != nil {
return 0
}
if begin < 0 || end < 0 || begin > end || end > len(str) {
p.err = errInvalidTimestamp
return 0
}
result, err := strconv.Atoi(str[begin:end])
if err != nil {
if p.err == nil {
p.err = fmt.Errorf("expected number; got '%v'", str)
}
return 0
}
return result
}
// The location cache caches the time zones typically used by the client.
type locationCache struct {
cache map[int]*time.Location
lock sync.Mutex
}
// All connections share the same list of timezones. Benchmarking shows that
// about 5% speed could be gained by putting the cache in the connection and
// losing the mutex, at the cost of a small amount of memory and a somewhat
// significant increase in code complexity.
var globalLocationCache = newLocationCache()
func newLocationCache() *locationCache {
return &locationCache{cache: make(map[int]*time.Location)}
}
// Returns the cached timezone for the specified offset, creating and caching
// it if necessary.
func (c *locationCache) getLocation(offset int) *time.Location {
c.lock.Lock()
defer c.lock.Unlock()
location, ok := c.cache[offset]
if !ok {
location = time.FixedZone("", offset)
c.cache[offset] = location
}
return location
}
var infinityTsEnabled = false
var infinityTsNegative time.Time
var infinityTsPositive time.Time
const (
infinityTsEnabledAlready = "pq: infinity timestamp enabled already"
infinityTsNegativeMustBeSmaller = "pq: infinity timestamp: negative value must be smaller (before) than positive"
)
// EnableInfinityTs controls the handling of Postgres' "-infinity" and
// "infinity" "timestamp"s.
//
// If EnableInfinityTs is not called, "-infinity" and "infinity" will return
// []byte("-infinity") and []byte("infinity") respectively, and potentially
// cause error "sql: Scan error on column index 0: unsupported driver -> Scan
// pair: []uint8 -> *time.Time", when scanning into a time.Time value.
//
// Once EnableInfinityTs has been called, all connections created using this
// driver will decode Postgres' "-infinity" and "infinity" for "timestamp",
// "timestamp with time zone" and "date" types to the predefined minimum and
// maximum times, respectively. When encoding time.Time values, any time which
// equals or precedes the predefined minimum time will be encoded to
// "-infinity". Any values at or past the maximum time will similarly be
// encoded to "infinity".
//
// If EnableInfinityTs is called with negative >= positive, it will panic.
// Calling EnableInfinityTs after a connection has been established results in
// undefined behavior. If EnableInfinityTs is called more than once, it will
// panic.
func EnableInfinityTs(negative time.Time, positive time.Time) {
if infinityTsEnabled {
panic(infinityTsEnabledAlready)
}
if !negative.Before(positive) {
panic(infinityTsNegativeMustBeSmaller)
}
infinityTsEnabled = true
infinityTsNegative = negative
infinityTsPositive = positive
}
/*
* Testing might want to toggle infinityTsEnabled
*/
func disableInfinityTs() {
infinityTsEnabled = false
}
// This is a time function specific to the Postgres default DateStyle
// setting ("ISO, MDY"), the only one we currently support. This
// accounts for the discrepancies between the parsing available with
// time.Parse and the Postgres date formatting quirks.
func parseTs(currentLocation *time.Location, str string) interface{} {
switch str {
case "-infinity":
if infinityTsEnabled {
return infinityTsNegative
}
return []byte(str)
case "infinity":
if infinityTsEnabled {
return infinityTsPositive
}
return []byte(str)
}
t, err := ParseTimestamp(currentLocation, str)
if err != nil {
panic(err)
}
return t
}
// ParseTimestamp parses Postgres' text format. It returns a time.Time in
// currentLocation iff that time's offset agrees with the offset sent from the
// Postgres server. Otherwise, ParseTimestamp returns a time.Time with the
// fixed offset offset provided by the Postgres server.
func ParseTimestamp(currentLocation *time.Location, str string) (time.Time, error) {
p := timestampParser{}
monSep := strings.IndexRune(str, '-')
// this is Gregorian year, not ISO Year
// In Gregorian system, the year 1 BC is followed by AD 1
year := p.mustAtoi(str, 0, monSep)
daySep := monSep + 3
month := p.mustAtoi(str, monSep+1, daySep)
p.expect(str, '-', daySep)
timeSep := daySep + 3
day := p.mustAtoi(str, daySep+1, timeSep)
var hour, minute, second int
if len(str) > monSep+len("01-01")+1 {
p.expect(str, ' ', timeSep)
minSep := timeSep + 3
p.expect(str, ':', minSep)
hour = p.mustAtoi(str, timeSep+1, minSep)
secSep := minSep + 3
p.expect(str, ':', secSep)
minute = p.mustAtoi(str, minSep+1, secSep)
secEnd := secSep + 3
second = p.mustAtoi(str, secSep+1, secEnd)
}
remainderIdx := monSep + len("01-01 00:00:00") + 1
// Three optional (but ordered) sections follow: the
// fractional seconds, the time zone offset, and the BC
// designation. We set them up here and adjust the other
// offsets if the preceding sections exist.
nanoSec := 0
tzOff := 0
if remainderIdx < len(str) && str[remainderIdx] == '.' {
fracStart := remainderIdx + 1
fracOff := strings.IndexAny(str[fracStart:], "-+ ")
if fracOff < 0 {
fracOff = len(str) - fracStart
}
fracSec := p.mustAtoi(str, fracStart, fracStart+fracOff)
nanoSec = fracSec * (1000000000 / int(math.Pow(10, float64(fracOff))))
remainderIdx += fracOff + 1
}
if tzStart := remainderIdx; tzStart < len(str) && (str[tzStart] == '-' || str[tzStart] == '+') {
// time zone separator is always '-' or '+' (UTC is +00)
var tzSign int
switch c := str[tzStart]; c {
case '-':
tzSign = -1
case '+':
tzSign = +1
default:
return time.Time{}, fmt.Errorf("expected '-' or '+' at position %v; got %v", tzStart, c)
}
tzHours := p.mustAtoi(str, tzStart+1, tzStart+3)
remainderIdx += 3
var tzMin, tzSec int
if remainderIdx < len(str) && str[remainderIdx] == ':' {
tzMin = p.mustAtoi(str, remainderIdx+1, remainderIdx+3)
remainderIdx += 3
}
if remainderIdx < len(str) && str[remainderIdx] == ':' {
tzSec = p.mustAtoi(str, remainderIdx+1, remainderIdx+3)
remainderIdx += 3
}
tzOff = tzSign * ((tzHours * 60 * 60) + (tzMin * 60) + tzSec)
}
var isoYear int
if remainderIdx+3 <= len(str) && str[remainderIdx:remainderIdx+3] == " BC" {
isoYear = 1 - year
remainderIdx += 3
} else {
isoYear = year
}
if remainderIdx < len(str) {
return time.Time{}, fmt.Errorf("expected end of input, got %v", str[remainderIdx:])
}
t := time.Date(isoYear, time.Month(month), day,
hour, minute, second, nanoSec,
globalLocationCache.getLocation(tzOff))
if currentLocation != nil {
// Set the location of the returned Time based on the session's
// TimeZone value, but only if the local time zone database agrees with
// the remote database on the offset.
lt := t.In(currentLocation)
_, newOff := lt.Zone()
if newOff == tzOff {
t = lt
}
}
return t, p.err
}
// formatTs formats t into a format postgres understands.
func formatTs(t time.Time) []byte {
if infinityTsEnabled {
// t <= -infinity : ! (t > -infinity)
if !t.After(infinityTsNegative) {
return []byte("-infinity")
}
// t >= infinity : ! (!t < infinity)
if !t.Before(infinityTsPositive) {
return []byte("infinity")
}
}
return FormatTimestamp(t)
}
// FormatTimestamp formats t into Postgres' text format for timestamps.
func FormatTimestamp(t time.Time) []byte {
// Need to send dates before 0001 A.D. with " BC" suffix, instead of the
// minus sign preferred by Go.
// Beware, "0000" in ISO is "1 BC", "-0001" is "2 BC" and so on
bc := false
if t.Year() <= 0 {
// flip year sign, and add 1, e.g: "0" will be "1", and "-10" will be "11"
t = t.AddDate((-t.Year())*2+1, 0, 0)
bc = true
}
b := []byte(t.Format(time.RFC3339Nano))
_, offset := t.Zone()
offset = offset % 60
if offset != 0 {
// RFC3339Nano already printed the minus sign
if offset < 0 {
offset = -offset
}
b = append(b, ':')
if offset < 10 {
b = append(b, '0')
}
b = strconv.AppendInt(b, int64(offset), 10)
}
if bc {
b = append(b, " BC"...)
}
return b
}
// Parse a bytea value received from the server. Both "hex" and the legacy
// "escape" format are supported.
func parseBytea(s []byte) (result []byte, err error) {
if len(s) >= 2 && bytes.Equal(s[:2], []byte("\\x")) {
// bytea_output = hex
s = s[2:] // trim off leading "\\x"
result = make([]byte, hex.DecodedLen(len(s)))
_, err := hex.Decode(result, s)
if err != nil {
return nil, err
}
} else {
// bytea_output = escape
for len(s) > 0 {
if s[0] == '\\' {
// escaped '\\'
if len(s) >= 2 && s[1] == '\\' {
result = append(result, '\\')
s = s[2:]
continue
}
// '\\' followed by an octal number
if len(s) < 4 {
return nil, fmt.Errorf("invalid bytea sequence %v", s)
}
r, err := strconv.ParseInt(string(s[1:4]), 8, 9)
if err != nil {
return nil, fmt.Errorf("could not parse bytea value: %s", err.Error())
}
result = append(result, byte(r))
s = s[4:]
} else {
// We hit an unescaped, raw byte. Try to read in as many as
// possible in one go.
i := bytes.IndexByte(s, '\\')
if i == -1 {
result = append(result, s...)
break
}
result = append(result, s[:i]...)
s = s[i:]
}
}
}
return result, nil
}
func encodeBytea(serverVersion int, v []byte) (result []byte) {
if serverVersion >= 90000 {
// Use the hex format if we know that the server supports it
result = make([]byte, 2+hex.EncodedLen(len(v)))
result[0] = '\\'
result[1] = 'x'
hex.Encode(result[2:], v)
} else {
// .. or resort to "escape"
for _, b := range v {
if b == '\\' {
result = append(result, '\\', '\\')
} else if b < 0x20 || b > 0x7e {
result = append(result, []byte(fmt.Sprintf("\\%03o", b))...)
} else {
result = append(result, b)
}
}
}
return result
}
// NullTime represents a time.Time that may be null. NullTime implements the
// sql.Scanner interface so it can be used as a scan destination, similar to
// sql.NullString.
type NullTime struct {
Time time.Time
Valid bool // Valid is true if Time is not NULL
}
// Scan implements the Scanner interface.
func (nt *NullTime) Scan(value interface{}) error {
nt.Time, nt.Valid = value.(time.Time)
return nil
}
// Value implements the driver Valuer interface.
func (nt NullTime) Value() (driver.Value, error) {
if !nt.Valid {
return nil, nil
}
return nt.Time, nil
}

508
vendor/github.com/lib/pq/error.go generated vendored Normal file
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@ -0,0 +1,508 @@
package pq
import (
"database/sql/driver"
"fmt"
"io"
"net"
"runtime"
)
// Error severities
const (
Efatal = "FATAL"
Epanic = "PANIC"
Ewarning = "WARNING"
Enotice = "NOTICE"
Edebug = "DEBUG"
Einfo = "INFO"
Elog = "LOG"
)
// Error represents an error communicating with the server.
//
// See http://www.postgresql.org/docs/current/static/protocol-error-fields.html for details of the fields
type Error struct {
Severity string
Code ErrorCode
Message string
Detail string
Hint string
Position string
InternalPosition string
InternalQuery string
Where string
Schema string
Table string
Column string
DataTypeName string
Constraint string
File string
Line string
Routine string
}
// ErrorCode is a five-character error code.
type ErrorCode string
// Name returns a more human friendly rendering of the error code, namely the
// "condition name".
//
// See http://www.postgresql.org/docs/9.3/static/errcodes-appendix.html for
// details.
func (ec ErrorCode) Name() string {
return errorCodeNames[ec]
}
// ErrorClass is only the class part of an error code.
type ErrorClass string
// Name returns the condition name of an error class. It is equivalent to the
// condition name of the "standard" error code (i.e. the one having the last
// three characters "000").
func (ec ErrorClass) Name() string {
return errorCodeNames[ErrorCode(ec+"000")]
}
// Class returns the error class, e.g. "28".
//
// See http://www.postgresql.org/docs/9.3/static/errcodes-appendix.html for
// details.
func (ec ErrorCode) Class() ErrorClass {
return ErrorClass(ec[0:2])
}
// errorCodeNames is a mapping between the five-character error codes and the
// human readable "condition names". It is derived from the list at
// http://www.postgresql.org/docs/9.3/static/errcodes-appendix.html
var errorCodeNames = map[ErrorCode]string{
// Class 00 - Successful Completion
"00000": "successful_completion",
// Class 01 - Warning
"01000": "warning",
"0100C": "dynamic_result_sets_returned",
"01008": "implicit_zero_bit_padding",
"01003": "null_value_eliminated_in_set_function",
"01007": "privilege_not_granted",
"01006": "privilege_not_revoked",
"01004": "string_data_right_truncation",
"01P01": "deprecated_feature",
// Class 02 - No Data (this is also a warning class per the SQL standard)
"02000": "no_data",
"02001": "no_additional_dynamic_result_sets_returned",
// Class 03 - SQL Statement Not Yet Complete
"03000": "sql_statement_not_yet_complete",
// Class 08 - Connection Exception
"08000": "connection_exception",
"08003": "connection_does_not_exist",
"08006": "connection_failure",
"08001": "sqlclient_unable_to_establish_sqlconnection",
"08004": "sqlserver_rejected_establishment_of_sqlconnection",
"08007": "transaction_resolution_unknown",
"08P01": "protocol_violation",
// Class 09 - Triggered Action Exception
"09000": "triggered_action_exception",
// Class 0A - Feature Not Supported
"0A000": "feature_not_supported",
// Class 0B - Invalid Transaction Initiation
"0B000": "invalid_transaction_initiation",
// Class 0F - Locator Exception
"0F000": "locator_exception",
"0F001": "invalid_locator_specification",
// Class 0L - Invalid Grantor
"0L000": "invalid_grantor",
"0LP01": "invalid_grant_operation",
// Class 0P - Invalid Role Specification
"0P000": "invalid_role_specification",
// Class 0Z - Diagnostics Exception
"0Z000": "diagnostics_exception",
"0Z002": "stacked_diagnostics_accessed_without_active_handler",
// Class 20 - Case Not Found
"20000": "case_not_found",
// Class 21 - Cardinality Violation
"21000": "cardinality_violation",
// Class 22 - Data Exception
"22000": "data_exception",
"2202E": "array_subscript_error",
"22021": "character_not_in_repertoire",
"22008": "datetime_field_overflow",
"22012": "division_by_zero",
"22005": "error_in_assignment",
"2200B": "escape_character_conflict",
"22022": "indicator_overflow",
"22015": "interval_field_overflow",
"2201E": "invalid_argument_for_logarithm",
"22014": "invalid_argument_for_ntile_function",
"22016": "invalid_argument_for_nth_value_function",
"2201F": "invalid_argument_for_power_function",
"2201G": "invalid_argument_for_width_bucket_function",
"22018": "invalid_character_value_for_cast",
"22007": "invalid_datetime_format",
"22019": "invalid_escape_character",
"2200D": "invalid_escape_octet",
"22025": "invalid_escape_sequence",
"22P06": "nonstandard_use_of_escape_character",
"22010": "invalid_indicator_parameter_value",
"22023": "invalid_parameter_value",
"2201B": "invalid_regular_expression",
"2201W": "invalid_row_count_in_limit_clause",
"2201X": "invalid_row_count_in_result_offset_clause",
"22009": "invalid_time_zone_displacement_value",
"2200C": "invalid_use_of_escape_character",
"2200G": "most_specific_type_mismatch",
"22004": "null_value_not_allowed",
"22002": "null_value_no_indicator_parameter",
"22003": "numeric_value_out_of_range",
"22026": "string_data_length_mismatch",
"22001": "string_data_right_truncation",
"22011": "substring_error",
"22027": "trim_error",
"22024": "unterminated_c_string",
"2200F": "zero_length_character_string",
"22P01": "floating_point_exception",
"22P02": "invalid_text_representation",
"22P03": "invalid_binary_representation",
"22P04": "bad_copy_file_format",
"22P05": "untranslatable_character",
"2200L": "not_an_xml_document",
"2200M": "invalid_xml_document",
"2200N": "invalid_xml_content",
"2200S": "invalid_xml_comment",
"2200T": "invalid_xml_processing_instruction",
// Class 23 - Integrity Constraint Violation
"23000": "integrity_constraint_violation",
"23001": "restrict_violation",
"23502": "not_null_violation",
"23503": "foreign_key_violation",
"23505": "unique_violation",
"23514": "check_violation",
"23P01": "exclusion_violation",
// Class 24 - Invalid Cursor State
"24000": "invalid_cursor_state",
// Class 25 - Invalid Transaction State
"25000": "invalid_transaction_state",
"25001": "active_sql_transaction",
"25002": "branch_transaction_already_active",
"25008": "held_cursor_requires_same_isolation_level",
"25003": "inappropriate_access_mode_for_branch_transaction",
"25004": "inappropriate_isolation_level_for_branch_transaction",
"25005": "no_active_sql_transaction_for_branch_transaction",
"25006": "read_only_sql_transaction",
"25007": "schema_and_data_statement_mixing_not_supported",
"25P01": "no_active_sql_transaction",
"25P02": "in_failed_sql_transaction",
// Class 26 - Invalid SQL Statement Name
"26000": "invalid_sql_statement_name",
// Class 27 - Triggered Data Change Violation
"27000": "triggered_data_change_violation",
// Class 28 - Invalid Authorization Specification
"28000": "invalid_authorization_specification",
"28P01": "invalid_password",
// Class 2B - Dependent Privilege Descriptors Still Exist
"2B000": "dependent_privilege_descriptors_still_exist",
"2BP01": "dependent_objects_still_exist",
// Class 2D - Invalid Transaction Termination
"2D000": "invalid_transaction_termination",
// Class 2F - SQL Routine Exception
"2F000": "sql_routine_exception",
"2F005": "function_executed_no_return_statement",
"2F002": "modifying_sql_data_not_permitted",
"2F003": "prohibited_sql_statement_attempted",
"2F004": "reading_sql_data_not_permitted",
// Class 34 - Invalid Cursor Name
"34000": "invalid_cursor_name",
// Class 38 - External Routine Exception
"38000": "external_routine_exception",
"38001": "containing_sql_not_permitted",
"38002": "modifying_sql_data_not_permitted",
"38003": "prohibited_sql_statement_attempted",
"38004": "reading_sql_data_not_permitted",
// Class 39 - External Routine Invocation Exception
"39000": "external_routine_invocation_exception",
"39001": "invalid_sqlstate_returned",
"39004": "null_value_not_allowed",
"39P01": "trigger_protocol_violated",
"39P02": "srf_protocol_violated",
// Class 3B - Savepoint Exception
"3B000": "savepoint_exception",
"3B001": "invalid_savepoint_specification",
// Class 3D - Invalid Catalog Name
"3D000": "invalid_catalog_name",
// Class 3F - Invalid Schema Name
"3F000": "invalid_schema_name",
// Class 40 - Transaction Rollback
"40000": "transaction_rollback",
"40002": "transaction_integrity_constraint_violation",
"40001": "serialization_failure",
"40003": "statement_completion_unknown",
"40P01": "deadlock_detected",
// Class 42 - Syntax Error or Access Rule Violation
"42000": "syntax_error_or_access_rule_violation",
"42601": "syntax_error",
"42501": "insufficient_privilege",
"42846": "cannot_coerce",
"42803": "grouping_error",
"42P20": "windowing_error",
"42P19": "invalid_recursion",
"42830": "invalid_foreign_key",
"42602": "invalid_name",
"42622": "name_too_long",
"42939": "reserved_name",
"42804": "datatype_mismatch",
"42P18": "indeterminate_datatype",
"42P21": "collation_mismatch",
"42P22": "indeterminate_collation",
"42809": "wrong_object_type",
"42703": "undefined_column",
"42883": "undefined_function",
"42P01": "undefined_table",
"42P02": "undefined_parameter",
"42704": "undefined_object",
"42701": "duplicate_column",
"42P03": "duplicate_cursor",
"42P04": "duplicate_database",
"42723": "duplicate_function",
"42P05": "duplicate_prepared_statement",
"42P06": "duplicate_schema",
"42P07": "duplicate_table",
"42712": "duplicate_alias",
"42710": "duplicate_object",
"42702": "ambiguous_column",
"42725": "ambiguous_function",
"42P08": "ambiguous_parameter",
"42P09": "ambiguous_alias",
"42P10": "invalid_column_reference",
"42611": "invalid_column_definition",
"42P11": "invalid_cursor_definition",
"42P12": "invalid_database_definition",
"42P13": "invalid_function_definition",
"42P14": "invalid_prepared_statement_definition",
"42P15": "invalid_schema_definition",
"42P16": "invalid_table_definition",
"42P17": "invalid_object_definition",
// Class 44 - WITH CHECK OPTION Violation
"44000": "with_check_option_violation",
// Class 53 - Insufficient Resources
"53000": "insufficient_resources",
"53100": "disk_full",
"53200": "out_of_memory",
"53300": "too_many_connections",
"53400": "configuration_limit_exceeded",
// Class 54 - Program Limit Exceeded
"54000": "program_limit_exceeded",
"54001": "statement_too_complex",
"54011": "too_many_columns",
"54023": "too_many_arguments",
// Class 55 - Object Not In Prerequisite State
"55000": "object_not_in_prerequisite_state",
"55006": "object_in_use",
"55P02": "cant_change_runtime_param",
"55P03": "lock_not_available",
// Class 57 - Operator Intervention
"57000": "operator_intervention",
"57014": "query_canceled",
"57P01": "admin_shutdown",
"57P02": "crash_shutdown",
"57P03": "cannot_connect_now",
"57P04": "database_dropped",
// Class 58 - System Error (errors external to PostgreSQL itself)
"58000": "system_error",
"58030": "io_error",
"58P01": "undefined_file",
"58P02": "duplicate_file",
// Class F0 - Configuration File Error
"F0000": "config_file_error",
"F0001": "lock_file_exists",
// Class HV - Foreign Data Wrapper Error (SQL/MED)
"HV000": "fdw_error",
"HV005": "fdw_column_name_not_found",
"HV002": "fdw_dynamic_parameter_value_needed",
"HV010": "fdw_function_sequence_error",
"HV021": "fdw_inconsistent_descriptor_information",
"HV024": "fdw_invalid_attribute_value",
"HV007": "fdw_invalid_column_name",
"HV008": "fdw_invalid_column_number",
"HV004": "fdw_invalid_data_type",
"HV006": "fdw_invalid_data_type_descriptors",
"HV091": "fdw_invalid_descriptor_field_identifier",
"HV00B": "fdw_invalid_handle",
"HV00C": "fdw_invalid_option_index",
"HV00D": "fdw_invalid_option_name",
"HV090": "fdw_invalid_string_length_or_buffer_length",
"HV00A": "fdw_invalid_string_format",
"HV009": "fdw_invalid_use_of_null_pointer",
"HV014": "fdw_too_many_handles",
"HV001": "fdw_out_of_memory",
"HV00P": "fdw_no_schemas",
"HV00J": "fdw_option_name_not_found",
"HV00K": "fdw_reply_handle",
"HV00Q": "fdw_schema_not_found",
"HV00R": "fdw_table_not_found",
"HV00L": "fdw_unable_to_create_execution",
"HV00M": "fdw_unable_to_create_reply",
"HV00N": "fdw_unable_to_establish_connection",
// Class P0 - PL/pgSQL Error
"P0000": "plpgsql_error",
"P0001": "raise_exception",
"P0002": "no_data_found",
"P0003": "too_many_rows",
// Class XX - Internal Error
"XX000": "internal_error",
"XX001": "data_corrupted",
"XX002": "index_corrupted",
}
func parseError(r *readBuf) *Error {
err := new(Error)
for t := r.byte(); t != 0; t = r.byte() {
msg := r.string()
switch t {
case 'S':
err.Severity = msg
case 'C':
err.Code = ErrorCode(msg)
case 'M':
err.Message = msg
case 'D':
err.Detail = msg
case 'H':
err.Hint = msg
case 'P':
err.Position = msg
case 'p':
err.InternalPosition = msg
case 'q':
err.InternalQuery = msg
case 'W':
err.Where = msg
case 's':
err.Schema = msg
case 't':
err.Table = msg
case 'c':
err.Column = msg
case 'd':
err.DataTypeName = msg
case 'n':
err.Constraint = msg
case 'F':
err.File = msg
case 'L':
err.Line = msg
case 'R':
err.Routine = msg
}
}
return err
}
// Fatal returns true if the Error Severity is fatal.
func (err *Error) Fatal() bool {
return err.Severity == Efatal
}
// Get implements the legacy PGError interface. New code should use the fields
// of the Error struct directly.
func (err *Error) Get(k byte) (v string) {
switch k {
case 'S':
return err.Severity
case 'C':
return string(err.Code)
case 'M':
return err.Message
case 'D':
return err.Detail
case 'H':
return err.Hint
case 'P':
return err.Position
case 'p':
return err.InternalPosition
case 'q':
return err.InternalQuery
case 'W':
return err.Where
case 's':
return err.Schema
case 't':
return err.Table
case 'c':
return err.Column
case 'd':
return err.DataTypeName
case 'n':
return err.Constraint
case 'F':
return err.File
case 'L':
return err.Line
case 'R':
return err.Routine
}
return ""
}
func (err Error) Error() string {
return "pq: " + err.Message
}
// PGError is an interface used by previous versions of pq. It is provided
// only to support legacy code. New code should use the Error type.
type PGError interface {
Error() string
Fatal() bool
Get(k byte) (v string)
}
func errorf(s string, args ...interface{}) {
panic(fmt.Errorf("pq: %s", fmt.Sprintf(s, args...)))
}
func errRecoverNoErrBadConn(err *error) {
e := recover()
if e == nil {
// Do nothing
return
}
var ok bool
*err, ok = e.(error)
if !ok {
*err = fmt.Errorf("pq: unexpected error: %#v", e)
}
}
func (c *conn) errRecover(err *error) {
e := recover()
switch v := e.(type) {
case nil:
// Do nothing
case runtime.Error:
c.bad = true
panic(v)
case *Error:
if v.Fatal() {
*err = driver.ErrBadConn
} else {
*err = v
}
case *net.OpError:
*err = driver.ErrBadConn
case error:
if v == io.EOF || v.(error).Error() == "remote error: handshake failure" {
*err = driver.ErrBadConn
} else {
*err = v
}
default:
c.bad = true
panic(fmt.Sprintf("unknown error: %#v", e))
}
// Any time we return ErrBadConn, we need to remember it since *Tx doesn't
// mark the connection bad in database/sql.
if *err == driver.ErrBadConn {
c.bad = true
}
}

782
vendor/github.com/lib/pq/notify.go generated vendored Normal file
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@ -0,0 +1,782 @@
package pq
// Package pq is a pure Go Postgres driver for the database/sql package.
// This module contains support for Postgres LISTEN/NOTIFY.
import (
"errors"
"fmt"
"sync"
"sync/atomic"
"time"
)
// Notification represents a single notification from the database.
type Notification struct {
// Process ID (PID) of the notifying postgres backend.
BePid int
// Name of the channel the notification was sent on.
Channel string
// Payload, or the empty string if unspecified.
Extra string
}
func recvNotification(r *readBuf) *Notification {
bePid := r.int32()
channel := r.string()
extra := r.string()
return &Notification{bePid, channel, extra}
}
const (
connStateIdle int32 = iota
connStateExpectResponse
connStateExpectReadyForQuery
)
type message struct {
typ byte
err error
}
var errListenerConnClosed = errors.New("pq: ListenerConn has been closed")
// ListenerConn is a low-level interface for waiting for notifications. You
// should use Listener instead.
type ListenerConn struct {
// guards cn and err
connectionLock sync.Mutex
cn *conn
err error
connState int32
// the sending goroutine will be holding this lock
senderLock sync.Mutex
notificationChan chan<- *Notification
replyChan chan message
}
// Creates a new ListenerConn. Use NewListener instead.
func NewListenerConn(name string, notificationChan chan<- *Notification) (*ListenerConn, error) {
return newDialListenerConn(defaultDialer{}, name, notificationChan)
}
func newDialListenerConn(d Dialer, name string, c chan<- *Notification) (*ListenerConn, error) {
cn, err := DialOpen(d, name)
if err != nil {
return nil, err
}
l := &ListenerConn{
cn: cn.(*conn),
notificationChan: c,
connState: connStateIdle,
replyChan: make(chan message, 2),
}
go l.listenerConnMain()
return l, nil
}
// We can only allow one goroutine at a time to be running a query on the
// connection for various reasons, so the goroutine sending on the connection
// must be holding senderLock.
//
// Returns an error if an unrecoverable error has occurred and the ListenerConn
// should be abandoned.
func (l *ListenerConn) acquireSenderLock() error {
// we must acquire senderLock first to avoid deadlocks; see ExecSimpleQuery
l.senderLock.Lock()
l.connectionLock.Lock()
err := l.err
l.connectionLock.Unlock()
if err != nil {
l.senderLock.Unlock()
return err
}
return nil
}
func (l *ListenerConn) releaseSenderLock() {
l.senderLock.Unlock()
}
// setState advances the protocol state to newState. Returns false if moving
// to that state from the current state is not allowed.
func (l *ListenerConn) setState(newState int32) bool {
var expectedState int32
switch newState {
case connStateIdle:
expectedState = connStateExpectReadyForQuery
case connStateExpectResponse:
expectedState = connStateIdle
case connStateExpectReadyForQuery:
expectedState = connStateExpectResponse
default:
panic(fmt.Sprintf("unexpected listenerConnState %d", newState))
}
return atomic.CompareAndSwapInt32(&l.connState, expectedState, newState)
}
// Main logic is here: receive messages from the postgres backend, forward
// notifications and query replies and keep the internal state in sync with the
// protocol state. Returns when the connection has been lost, is about to go
// away or should be discarded because we couldn't agree on the state with the
// server backend.
func (l *ListenerConn) listenerConnLoop() (err error) {
defer errRecoverNoErrBadConn(&err)
r := &readBuf{}
for {
t, err := l.cn.recvMessage(r)
if err != nil {
return err
}
switch t {
case 'A':
// recvNotification copies all the data so we don't need to worry
// about the scratch buffer being overwritten.
l.notificationChan <- recvNotification(r)
case 'T', 'D':
// only used by tests; ignore
case 'E':
// We might receive an ErrorResponse even when not in a query; it
// is expected that the server will close the connection after
// that, but we should make sure that the error we display is the
// one from the stray ErrorResponse, not io.ErrUnexpectedEOF.
if !l.setState(connStateExpectReadyForQuery) {
return parseError(r)
}
l.replyChan <- message{t, parseError(r)}
case 'C', 'I':
if !l.setState(connStateExpectReadyForQuery) {
// protocol out of sync
return fmt.Errorf("unexpected CommandComplete")
}
// ExecSimpleQuery doesn't need to know about this message
case 'Z':
if !l.setState(connStateIdle) {
// protocol out of sync
return fmt.Errorf("unexpected ReadyForQuery")
}
l.replyChan <- message{t, nil}
case 'N', 'S':
// ignore
default:
return fmt.Errorf("unexpected message %q from server in listenerConnLoop", t)
}
}
}
// This is the main routine for the goroutine receiving on the database
// connection. Most of the main logic is in listenerConnLoop.
func (l *ListenerConn) listenerConnMain() {
err := l.listenerConnLoop()
// listenerConnLoop terminated; we're done, but we still have to clean up.
// Make sure nobody tries to start any new queries by making sure the err
// pointer is set. It is important that we do not overwrite its value; a
// connection could be closed by either this goroutine or one sending on
// the connection -- whoever closes the connection is assumed to have the
// more meaningful error message (as the other one will probably get
// net.errClosed), so that goroutine sets the error we expose while the
// other error is discarded. If the connection is lost while two
// goroutines are operating on the socket, it probably doesn't matter which
// error we expose so we don't try to do anything more complex.
l.connectionLock.Lock()
if l.err == nil {
l.err = err
}
l.cn.Close()
l.connectionLock.Unlock()
// There might be a query in-flight; make sure nobody's waiting for a
// response to it, since there's not going to be one.
close(l.replyChan)
// let the listener know we're done
close(l.notificationChan)
// this ListenerConn is done
}
// Send a LISTEN query to the server. See ExecSimpleQuery.
func (l *ListenerConn) Listen(channel string) (bool, error) {
return l.ExecSimpleQuery("LISTEN " + QuoteIdentifier(channel))
}
// Send an UNLISTEN query to the server. See ExecSimpleQuery.
func (l *ListenerConn) Unlisten(channel string) (bool, error) {
return l.ExecSimpleQuery("UNLISTEN " + QuoteIdentifier(channel))
}
// Send `UNLISTEN *` to the server. See ExecSimpleQuery.
func (l *ListenerConn) UnlistenAll() (bool, error) {
return l.ExecSimpleQuery("UNLISTEN *")
}
// Ping the remote server to make sure it's alive. Non-nil error means the
// connection has failed and should be abandoned.
func (l *ListenerConn) Ping() error {
sent, err := l.ExecSimpleQuery("")
if !sent {
return err
}
if err != nil {
// shouldn't happen
panic(err)
}
return nil
}
// Attempt to send a query on the connection. Returns an error if sending the
// query failed, and the caller should initiate closure of this connection.
// The caller must be holding senderLock (see acquireSenderLock and
// releaseSenderLock).
func (l *ListenerConn) sendSimpleQuery(q string) (err error) {
defer errRecoverNoErrBadConn(&err)
// must set connection state before sending the query
if !l.setState(connStateExpectResponse) {
panic("two queries running at the same time")
}
// Can't use l.cn.writeBuf here because it uses the scratch buffer which
// might get overwritten by listenerConnLoop.
b := &writeBuf{
buf: []byte("Q\x00\x00\x00\x00"),
pos: 1,
}
b.string(q)
l.cn.send(b)
return nil
}
// Execute a "simple query" (i.e. one with no bindable parameters) on the
// connection. The possible return values are:
// 1) "executed" is true; the query was executed to completion on the
// database server. If the query failed, err will be set to the error
// returned by the database, otherwise err will be nil.
// 2) If "executed" is false, the query could not be executed on the remote
// server. err will be non-nil.
//
// After a call to ExecSimpleQuery has returned an executed=false value, the
// connection has either been closed or will be closed shortly thereafter, and
// all subsequently executed queries will return an error.
func (l *ListenerConn) ExecSimpleQuery(q string) (executed bool, err error) {
if err = l.acquireSenderLock(); err != nil {
return false, err
}
defer l.releaseSenderLock()
err = l.sendSimpleQuery(q)
if err != nil {
// We can't know what state the protocol is in, so we need to abandon
// this connection.
l.connectionLock.Lock()
// Set the error pointer if it hasn't been set already; see
// listenerConnMain.
if l.err == nil {
l.err = err
}
l.connectionLock.Unlock()
l.cn.c.Close()
return false, err
}
// now we just wait for a reply..
for {
m, ok := <-l.replyChan
if !ok {
// We lost the connection to server, don't bother waiting for a
// a response. err should have been set already.
l.connectionLock.Lock()
err := l.err
l.connectionLock.Unlock()
return false, err
}
switch m.typ {
case 'Z':
// sanity check
if m.err != nil {
panic("m.err != nil")
}
// done; err might or might not be set
return true, err
case 'E':
// sanity check
if m.err == nil {
panic("m.err == nil")
}
// server responded with an error; ReadyForQuery to follow
err = m.err
default:
return false, fmt.Errorf("unknown response for simple query: %q", m.typ)
}
}
}
func (l *ListenerConn) Close() error {
l.connectionLock.Lock()
if l.err != nil {
l.connectionLock.Unlock()
return errListenerConnClosed
}
l.err = errListenerConnClosed
l.connectionLock.Unlock()
// We can't send anything on the connection without holding senderLock.
// Simply close the net.Conn to wake up everyone operating on it.
return l.cn.c.Close()
}
// Err() returns the reason the connection was closed. It is not safe to call
// this function until l.Notify has been closed.
func (l *ListenerConn) Err() error {
return l.err
}
var errListenerClosed = errors.New("pq: Listener has been closed")
var ErrChannelAlreadyOpen = errors.New("pq: channel is already open")
var ErrChannelNotOpen = errors.New("pq: channel is not open")
type ListenerEventType int
const (
// Emitted only when the database connection has been initially
// initialized. err will always be nil.
ListenerEventConnected ListenerEventType = iota
// Emitted after a database connection has been lost, either because of an
// error or because Close has been called. err will be set to the reason
// the database connection was lost.
ListenerEventDisconnected
// Emitted after a database connection has been re-established after
// connection loss. err will always be nil. After this event has been
// emitted, a nil pq.Notification is sent on the Listener.Notify channel.
ListenerEventReconnected
// Emitted after a connection to the database was attempted, but failed.
// err will be set to an error describing why the connection attempt did
// not succeed.
ListenerEventConnectionAttemptFailed
)
type EventCallbackType func(event ListenerEventType, err error)
// Listener provides an interface for listening to notifications from a
// PostgreSQL database. For general usage information, see section
// "Notifications".
//
// Listener can safely be used from concurrently running goroutines.
type Listener struct {
// Channel for receiving notifications from the database. In some cases a
// nil value will be sent. See section "Notifications" above.
Notify chan *Notification
name string
minReconnectInterval time.Duration
maxReconnectInterval time.Duration
dialer Dialer
eventCallback EventCallbackType
lock sync.Mutex
isClosed bool
reconnectCond *sync.Cond
cn *ListenerConn
connNotificationChan <-chan *Notification
channels map[string]struct{}
}
// NewListener creates a new database connection dedicated to LISTEN / NOTIFY.
//
// name should be set to a connection string to be used to establish the
// database connection (see section "Connection String Parameters" above).
//
// minReconnectInterval controls the duration to wait before trying to
// re-establish the database connection after connection loss. After each
// consecutive failure this interval is doubled, until maxReconnectInterval is
// reached. Successfully completing the connection establishment procedure
// resets the interval back to minReconnectInterval.
//
// The last parameter eventCallback can be set to a function which will be
// called by the Listener when the state of the underlying database connection
// changes. This callback will be called by the goroutine which dispatches the
// notifications over the Notify channel, so you should try to avoid doing
// potentially time-consuming operations from the callback.
func NewListener(name string,
minReconnectInterval time.Duration,
maxReconnectInterval time.Duration,
eventCallback EventCallbackType) *Listener {
return NewDialListener(defaultDialer{}, name, minReconnectInterval, maxReconnectInterval, eventCallback)
}
// NewDialListener is like NewListener but it takes a Dialer.
func NewDialListener(d Dialer,
name string,
minReconnectInterval time.Duration,
maxReconnectInterval time.Duration,
eventCallback EventCallbackType) *Listener {
l := &Listener{
name: name,
minReconnectInterval: minReconnectInterval,
maxReconnectInterval: maxReconnectInterval,
dialer: d,
eventCallback: eventCallback,
channels: make(map[string]struct{}),
Notify: make(chan *Notification, 32),
}
l.reconnectCond = sync.NewCond(&l.lock)
go l.listenerMain()
return l
}
// Returns the notification channel for this listener. This is the same
// channel as Notify, and will not be recreated during the life time of the
// Listener.
func (l *Listener) NotificationChannel() <-chan *Notification {
return l.Notify
}
// Listen starts listening for notifications on a channel. Calls to this
// function will block until an acknowledgement has been received from the
// server. Note that Listener automatically re-establishes the connection
// after connection loss, so this function may block indefinitely if the
// connection can not be re-established.
//
// Listen will only fail in three conditions:
// 1) The channel is already open. The returned error will be
// ErrChannelAlreadyOpen.
// 2) The query was executed on the remote server, but PostgreSQL returned an
// error message in response to the query. The returned error will be a
// pq.Error containing the information the server supplied.
// 3) Close is called on the Listener before the request could be completed.
//
// The channel name is case-sensitive.
func (l *Listener) Listen(channel string) error {
l.lock.Lock()
defer l.lock.Unlock()
if l.isClosed {
return errListenerClosed
}
// The server allows you to issue a LISTEN on a channel which is already
// open, but it seems useful to be able to detect this case to spot for
// mistakes in application logic. If the application genuinely does't
// care, it can check the exported error and ignore it.
_, exists := l.channels[channel]
if exists {
return ErrChannelAlreadyOpen
}
if l.cn != nil {
// If gotResponse is true but error is set, the query was executed on
// the remote server, but resulted in an error. This should be
// relatively rare, so it's fine if we just pass the error to our
// caller. However, if gotResponse is false, we could not complete the
// query on the remote server and our underlying connection is about
// to go away, so we only add relname to l.channels, and wait for
// resync() to take care of the rest.
gotResponse, err := l.cn.Listen(channel)
if gotResponse && err != nil {
return err
}
}
l.channels[channel] = struct{}{}
for l.cn == nil {
l.reconnectCond.Wait()
// we let go of the mutex for a while
if l.isClosed {
return errListenerClosed
}
}
return nil
}
// Unlisten removes a channel from the Listener's channel list. Returns
// ErrChannelNotOpen if the Listener is not listening on the specified channel.
// Returns immediately with no error if there is no connection. Note that you
// might still get notifications for this channel even after Unlisten has
// returned.
//
// The channel name is case-sensitive.
func (l *Listener) Unlisten(channel string) error {
l.lock.Lock()
defer l.lock.Unlock()
if l.isClosed {
return errListenerClosed
}
// Similarly to LISTEN, this is not an error in Postgres, but it seems
// useful to distinguish from the normal conditions.
_, exists := l.channels[channel]
if !exists {
return ErrChannelNotOpen
}
if l.cn != nil {
// Similarly to Listen (see comment in that function), the caller
// should only be bothered with an error if it came from the backend as
// a response to our query.
gotResponse, err := l.cn.Unlisten(channel)
if gotResponse && err != nil {
return err
}
}
// Don't bother waiting for resync if there's no connection.
delete(l.channels, channel)
return nil
}
// UnlistenAll removes all channels from the Listener's channel list. Returns
// immediately with no error if there is no connection. Note that you might
// still get notifications for any of the deleted channels even after
// UnlistenAll has returned.
func (l *Listener) UnlistenAll() error {
l.lock.Lock()
defer l.lock.Unlock()
if l.isClosed {
return errListenerClosed
}
if l.cn != nil {
// Similarly to Listen (see comment in that function), the caller
// should only be bothered with an error if it came from the backend as
// a response to our query.
gotResponse, err := l.cn.UnlistenAll()
if gotResponse && err != nil {
return err
}
}
// Don't bother waiting for resync if there's no connection.
l.channels = make(map[string]struct{})
return nil
}
// Ping the remote server to make sure it's alive. Non-nil return value means
// that there is no active connection.
func (l *Listener) Ping() error {
l.lock.Lock()
defer l.lock.Unlock()
if l.isClosed {
return errListenerClosed
}
if l.cn == nil {
return errors.New("no connection")
}
return l.cn.Ping()
}
// Clean up after losing the server connection. Returns l.cn.Err(), which
// should have the reason the connection was lost.
func (l *Listener) disconnectCleanup() error {
l.lock.Lock()
defer l.lock.Unlock()
// sanity check; can't look at Err() until the channel has been closed
select {
case _, ok := <-l.connNotificationChan:
if ok {
panic("connNotificationChan not closed")
}
default:
panic("connNotificationChan not closed")
}
err := l.cn.Err()
l.cn.Close()
l.cn = nil
return err
}
// Synchronize the list of channels we want to be listening on with the server
// after the connection has been established.
func (l *Listener) resync(cn *ListenerConn, notificationChan <-chan *Notification) error {
doneChan := make(chan error)
go func() {
for channel := range l.channels {
// If we got a response, return that error to our caller as it's
// going to be more descriptive than cn.Err().
gotResponse, err := cn.Listen(channel)
if gotResponse && err != nil {
doneChan <- err
return
}
// If we couldn't reach the server, wait for notificationChan to
// close and then return the error message from the connection, as
// per ListenerConn's interface.
if err != nil {
for _ = range notificationChan {
}
doneChan <- cn.Err()
return
}
}
doneChan <- nil
}()
// Ignore notifications while synchronization is going on to avoid
// deadlocks. We have to send a nil notification over Notify anyway as
// we can't possibly know which notifications (if any) were lost while
// the connection was down, so there's no reason to try and process
// these messages at all.
for {
select {
case _, ok := <-notificationChan:
if !ok {
notificationChan = nil
}
case err := <-doneChan:
return err
}
}
}
// caller should NOT be holding l.lock
func (l *Listener) closed() bool {
l.lock.Lock()
defer l.lock.Unlock()
return l.isClosed
}
func (l *Listener) connect() error {
notificationChan := make(chan *Notification, 32)
cn, err := newDialListenerConn(l.dialer, l.name, notificationChan)
if err != nil {
return err
}
l.lock.Lock()
defer l.lock.Unlock()
err = l.resync(cn, notificationChan)
if err != nil {
cn.Close()
return err
}
l.cn = cn
l.connNotificationChan = notificationChan
l.reconnectCond.Broadcast()
return nil
}
// Close disconnects the Listener from the database and shuts it down.
// Subsequent calls to its methods will return an error. Close returns an
// error if the connection has already been closed.
func (l *Listener) Close() error {
l.lock.Lock()
defer l.lock.Unlock()
if l.isClosed {
return errListenerClosed
}
if l.cn != nil {
l.cn.Close()
}
l.isClosed = true
return nil
}
func (l *Listener) emitEvent(event ListenerEventType, err error) {
if l.eventCallback != nil {
l.eventCallback(event, err)
}
}
// Main logic here: maintain a connection to the server when possible, wait
// for notifications and emit events.
func (l *Listener) listenerConnLoop() {
var nextReconnect time.Time
reconnectInterval := l.minReconnectInterval
for {
for {
err := l.connect()
if err == nil {
break
}
if l.closed() {
return
}
l.emitEvent(ListenerEventConnectionAttemptFailed, err)
time.Sleep(reconnectInterval)
reconnectInterval *= 2
if reconnectInterval > l.maxReconnectInterval {
reconnectInterval = l.maxReconnectInterval
}
}
if nextReconnect.IsZero() {
l.emitEvent(ListenerEventConnected, nil)
} else {
l.emitEvent(ListenerEventReconnected, nil)
l.Notify <- nil
}
reconnectInterval = l.minReconnectInterval
nextReconnect = time.Now().Add(reconnectInterval)
for {
notification, ok := <-l.connNotificationChan
if !ok {
// lost connection, loop again
break
}
l.Notify <- notification
}
err := l.disconnectCleanup()
if l.closed() {
return
}
l.emitEvent(ListenerEventDisconnected, err)
time.Sleep(nextReconnect.Sub(time.Now()))
}
}
func (l *Listener) listenerMain() {
l.listenerConnLoop()
close(l.Notify)
}

6
vendor/github.com/lib/pq/oid/doc.go generated vendored Normal file
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@ -0,0 +1,6 @@
// Package oid contains OID constants
// as defined by the Postgres server.
package oid
// Oid is a Postgres Object ID.
type Oid uint32

74
vendor/github.com/lib/pq/oid/gen.go generated vendored Normal file
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@ -0,0 +1,74 @@
// +build ignore
// Generate the table of OID values
// Run with 'go run gen.go'.
package main
import (
"database/sql"
"fmt"
"log"
"os"
"os/exec"
_ "github.com/lib/pq"
)
func main() {
datname := os.Getenv("PGDATABASE")
sslmode := os.Getenv("PGSSLMODE")
if datname == "" {
os.Setenv("PGDATABASE", "pqgotest")
}
if sslmode == "" {
os.Setenv("PGSSLMODE", "disable")
}
db, err := sql.Open("postgres", "")
if err != nil {
log.Fatal(err)
}
cmd := exec.Command("gofmt")
cmd.Stderr = os.Stderr
w, err := cmd.StdinPipe()
if err != nil {
log.Fatal(err)
}
f, err := os.Create("types.go")
if err != nil {
log.Fatal(err)
}
cmd.Stdout = f
err = cmd.Start()
if err != nil {
log.Fatal(err)
}
fmt.Fprintln(w, "// generated by 'go run gen.go'; do not edit")
fmt.Fprintln(w, "\npackage oid")
fmt.Fprintln(w, "const (")
rows, err := db.Query(`
SELECT typname, oid
FROM pg_type WHERE oid < 10000
ORDER BY oid;
`)
if err != nil {
log.Fatal(err)
}
var name string
var oid int
for rows.Next() {
err = rows.Scan(&name, &oid)
if err != nil {
log.Fatal(err)
}
fmt.Fprintf(w, "T_%s Oid = %d\n", name, oid)
}
if err = rows.Err(); err != nil {
log.Fatal(err)
}
fmt.Fprintln(w, ")")
w.Close()
cmd.Wait()
}

161
vendor/github.com/lib/pq/oid/types.go generated vendored Normal file
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@ -0,0 +1,161 @@
// generated by 'go run gen.go'; do not edit
package oid
const (
T_bool Oid = 16
T_bytea Oid = 17
T_char Oid = 18
T_name Oid = 19
T_int8 Oid = 20
T_int2 Oid = 21
T_int2vector Oid = 22
T_int4 Oid = 23
T_regproc Oid = 24
T_text Oid = 25
T_oid Oid = 26
T_tid Oid = 27
T_xid Oid = 28
T_cid Oid = 29
T_oidvector Oid = 30
T_pg_type Oid = 71
T_pg_attribute Oid = 75
T_pg_proc Oid = 81
T_pg_class Oid = 83
T_json Oid = 114
T_xml Oid = 142
T__xml Oid = 143
T_pg_node_tree Oid = 194
T__json Oid = 199
T_smgr Oid = 210
T_point Oid = 600
T_lseg Oid = 601
T_path Oid = 602
T_box Oid = 603
T_polygon Oid = 604
T_line Oid = 628
T__line Oid = 629
T_cidr Oid = 650
T__cidr Oid = 651
T_float4 Oid = 700
T_float8 Oid = 701
T_abstime Oid = 702
T_reltime Oid = 703
T_tinterval Oid = 704
T_unknown Oid = 705
T_circle Oid = 718
T__circle Oid = 719
T_money Oid = 790
T__money Oid = 791
T_macaddr Oid = 829
T_inet Oid = 869
T__bool Oid = 1000
T__bytea Oid = 1001
T__char Oid = 1002
T__name Oid = 1003
T__int2 Oid = 1005
T__int2vector Oid = 1006
T__int4 Oid = 1007
T__regproc Oid = 1008
T__text Oid = 1009
T__tid Oid = 1010
T__xid Oid = 1011
T__cid Oid = 1012
T__oidvector Oid = 1013
T__bpchar Oid = 1014
T__varchar Oid = 1015
T__int8 Oid = 1016
T__point Oid = 1017
T__lseg Oid = 1018
T__path Oid = 1019
T__box Oid = 1020
T__float4 Oid = 1021
T__float8 Oid = 1022
T__abstime Oid = 1023
T__reltime Oid = 1024
T__tinterval Oid = 1025
T__polygon Oid = 1027
T__oid Oid = 1028
T_aclitem Oid = 1033
T__aclitem Oid = 1034
T__macaddr Oid = 1040
T__inet Oid = 1041
T_bpchar Oid = 1042
T_varchar Oid = 1043
T_date Oid = 1082
T_time Oid = 1083
T_timestamp Oid = 1114
T__timestamp Oid = 1115
T__date Oid = 1182
T__time Oid = 1183
T_timestamptz Oid = 1184
T__timestamptz Oid = 1185
T_interval Oid = 1186
T__interval Oid = 1187
T__numeric Oid = 1231
T_pg_database Oid = 1248
T__cstring Oid = 1263
T_timetz Oid = 1266
T__timetz Oid = 1270
T_bit Oid = 1560
T__bit Oid = 1561
T_varbit Oid = 1562
T__varbit Oid = 1563
T_numeric Oid = 1700
T_refcursor Oid = 1790
T__refcursor Oid = 2201
T_regprocedure Oid = 2202
T_regoper Oid = 2203
T_regoperator Oid = 2204
T_regclass Oid = 2205
T_regtype Oid = 2206
T__regprocedure Oid = 2207
T__regoper Oid = 2208
T__regoperator Oid = 2209
T__regclass Oid = 2210
T__regtype Oid = 2211
T_record Oid = 2249
T_cstring Oid = 2275
T_any Oid = 2276
T_anyarray Oid = 2277
T_void Oid = 2278
T_trigger Oid = 2279
T_language_handler Oid = 2280
T_internal Oid = 2281
T_opaque Oid = 2282
T_anyelement Oid = 2283
T__record Oid = 2287
T_anynonarray Oid = 2776
T_pg_authid Oid = 2842
T_pg_auth_members Oid = 2843
T__txid_snapshot Oid = 2949
T_uuid Oid = 2950
T__uuid Oid = 2951
T_txid_snapshot Oid = 2970
T_fdw_handler Oid = 3115
T_anyenum Oid = 3500
T_tsvector Oid = 3614
T_tsquery Oid = 3615
T_gtsvector Oid = 3642
T__tsvector Oid = 3643
T__gtsvector Oid = 3644
T__tsquery Oid = 3645
T_regconfig Oid = 3734
T__regconfig Oid = 3735
T_regdictionary Oid = 3769
T__regdictionary Oid = 3770
T_anyrange Oid = 3831
T_event_trigger Oid = 3838
T_int4range Oid = 3904
T__int4range Oid = 3905
T_numrange Oid = 3906
T__numrange Oid = 3907
T_tsrange Oid = 3908
T__tsrange Oid = 3909
T_tstzrange Oid = 3910
T__tstzrange Oid = 3911
T_daterange Oid = 3912
T__daterange Oid = 3913
T_int8range Oid = 3926
T__int8range Oid = 3927
)

76
vendor/github.com/lib/pq/url.go generated vendored Normal file
View File

@ -0,0 +1,76 @@
package pq
import (
"fmt"
"net"
nurl "net/url"
"sort"
"strings"
)
// ParseURL no longer needs to be used by clients of this library since supplying a URL as a
// connection string to sql.Open() is now supported:
//
// sql.Open("postgres", "postgres://bob:secret@1.2.3.4:5432/mydb?sslmode=verify-full")
//
// It remains exported here for backwards-compatibility.
//
// ParseURL converts a url to a connection string for driver.Open.
// Example:
//
// "postgres://bob:secret@1.2.3.4:5432/mydb?sslmode=verify-full"
//
// converts to:
//
// "user=bob password=secret host=1.2.3.4 port=5432 dbname=mydb sslmode=verify-full"
//
// A minimal example:
//
// "postgres://"
//
// This will be blank, causing driver.Open to use all of the defaults
func ParseURL(url string) (string, error) {
u, err := nurl.Parse(url)
if err != nil {
return "", err
}
if u.Scheme != "postgres" && u.Scheme != "postgresql" {
return "", fmt.Errorf("invalid connection protocol: %s", u.Scheme)
}
var kvs []string
escaper := strings.NewReplacer(` `, `\ `, `'`, `\'`, `\`, `\\`)
accrue := func(k, v string) {
if v != "" {
kvs = append(kvs, k+"="+escaper.Replace(v))
}
}
if u.User != nil {
v := u.User.Username()
accrue("user", v)
v, _ = u.User.Password()
accrue("password", v)
}
if host, port, err := net.SplitHostPort(u.Host); err != nil {
accrue("host", u.Host)
} else {
accrue("host", host)
accrue("port", port)
}
if u.Path != "" {
accrue("dbname", u.Path[1:])
}
q := u.Query()
for k := range q {
accrue(k, q.Get(k))
}
sort.Strings(kvs) // Makes testing easier (not a performance concern)
return strings.Join(kvs, " "), nil
}

24
vendor/github.com/lib/pq/user_posix.go generated vendored Normal file
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@ -0,0 +1,24 @@
// Package pq is a pure Go Postgres driver for the database/sql package.
// +build darwin dragonfly freebsd linux nacl netbsd openbsd solaris rumprun
package pq
import (
"os"
"os/user"
)
func userCurrent() (string, error) {
u, err := user.Current()
if err == nil {
return u.Username, nil
}
name := os.Getenv("USER")
if name != "" {
return name, nil
}
return "", ErrCouldNotDetectUsername
}

27
vendor/github.com/lib/pq/user_windows.go generated vendored Normal file
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@ -0,0 +1,27 @@
// Package pq is a pure Go Postgres driver for the database/sql package.
package pq
import (
"path/filepath"
"syscall"
)
// Perform Windows user name lookup identically to libpq.
//
// The PostgreSQL code makes use of the legacy Win32 function
// GetUserName, and that function has not been imported into stock Go.
// GetUserNameEx is available though, the difference being that a
// wider range of names are available. To get the output to be the
// same as GetUserName, only the base (or last) component of the
// result is returned.
func userCurrent() (string, error) {
pw_name := make([]uint16, 128)
pwname_size := uint32(len(pw_name)) - 1
err := syscall.GetUserNameEx(syscall.NameSamCompatible, &pw_name[0], &pwname_size)
if err != nil {
return "", ErrCouldNotDetectUsername
}
s := syscall.UTF16ToString(pw_name)
u := filepath.Base(s)
return u, nil
}

23
vendor/github.com/smartystreets/assertions/LICENSE.md generated vendored Normal file
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@ -0,0 +1,23 @@
Copyright (c) 2015 SmartyStreets, LLC
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
NOTE: Various optional and subordinate components carry their own licensing
requirements and restrictions. Use of those components is subject to the terms
and conditions outlined the respective license of each component.

554
vendor/github.com/smartystreets/assertions/README.md generated vendored Normal file
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@ -0,0 +1,554 @@
# assertions
--
import "github.com/smartystreets/assertions"
Package assertions contains the implementations for all assertions which are
referenced in goconvey's `convey` package
(github.com/smartystreets/goconvey/convey) for use with the So(...) method. They
can also be used in traditional Go test functions and even in applicaitons.
## Usage
#### func GoConveyMode
```go
func GoConveyMode(yes bool)
```
GoConveyMode provides control over JSON serialization of failures. When using
the assertions in this package from the convey package JSON results are very
helpful and can be rendered in a DIFF view. In that case, this function will be
called with a true value to enable the JSON serialization. By default, the
assertions in this package will not serializer a JSON result, making standalone
ussage more convenient.
#### func ShouldAlmostEqual
```go
func ShouldAlmostEqual(actual interface{}, expected ...interface{}) string
```
ShouldAlmostEqual makes sure that two parameters are close enough to being
equal. The acceptable delta may be specified with a third argument, or a very
small default delta will be used.
#### func ShouldBeBetween
```go
func ShouldBeBetween(actual interface{}, expected ...interface{}) string
```
ShouldBeBetween receives exactly three parameters: an actual value, a lower
bound, and an upper bound. It ensures that the actual value is between both
bounds (but not equal to either of them).
#### func ShouldBeBetweenOrEqual
```go
func ShouldBeBetweenOrEqual(actual interface{}, expected ...interface{}) string
```
ShouldBeBetweenOrEqual receives exactly three parameters: an actual value, a
lower bound, and an upper bound. It ensures that the actual value is between
both bounds or equal to one of them.
#### func ShouldBeBlank
```go
func ShouldBeBlank(actual interface{}, expected ...interface{}) string
```
ShouldBeBlank receives exactly 1 string parameter and ensures that it is equal
to "".
#### func ShouldBeChronological
```go
func ShouldBeChronological(actual interface{}, expected ...interface{}) string
```
ShouldBeChronological receives a []time.Time slice and asserts that the are in
chronological order starting with the first time.Time as the earliest.
#### func ShouldBeEmpty
```go
func ShouldBeEmpty(actual interface{}, expected ...interface{}) string
```
ShouldBeEmpty receives a single parameter (actual) and determines whether or not
calling len(actual) would return `0`. It obeys the rules specified by the len
function for determining length: http://golang.org/pkg/builtin/#len
#### func ShouldBeFalse
```go
func ShouldBeFalse(actual interface{}, expected ...interface{}) string
```
ShouldBeFalse receives a single parameter and ensures that it is false.
#### func ShouldBeGreaterThan
```go
func ShouldBeGreaterThan(actual interface{}, expected ...interface{}) string
```
ShouldBeGreaterThan receives exactly two parameters and ensures that the first
is greater than the second.
#### func ShouldBeGreaterThanOrEqualTo
```go
func ShouldBeGreaterThanOrEqualTo(actual interface{}, expected ...interface{}) string
```
ShouldBeGreaterThanOrEqualTo receives exactly two parameters and ensures that
the first is greater than or equal to the second.
#### func ShouldBeIn
```go
func ShouldBeIn(actual interface{}, expected ...interface{}) string
```
ShouldBeIn receives at least 2 parameters. The first is a proposed member of the
collection that is passed in either as the second parameter, or of the
collection that is comprised of all the remaining parameters. This assertion
ensures that the proposed member is in the collection (using ShouldEqual).
#### func ShouldBeLessThan
```go
func ShouldBeLessThan(actual interface{}, expected ...interface{}) string
```
ShouldBeLessThan receives exactly two parameters and ensures that the first is
less than the second.
#### func ShouldBeLessThanOrEqualTo
```go
func ShouldBeLessThanOrEqualTo(actual interface{}, expected ...interface{}) string
```
ShouldBeLessThan receives exactly two parameters and ensures that the first is
less than or equal to the second.
#### func ShouldBeNil
```go
func ShouldBeNil(actual interface{}, expected ...interface{}) string
```
ShouldBeNil receives a single parameter and ensures that it is nil.
#### func ShouldBeTrue
```go
func ShouldBeTrue(actual interface{}, expected ...interface{}) string
```
ShouldBeTrue receives a single parameter and ensures that it is true.
#### func ShouldBeZeroValue
```go
func ShouldBeZeroValue(actual interface{}, expected ...interface{}) string
```
ShouldBeZeroValue receives a single parameter and ensures that it is the Go
equivalent of the default value, or "zero" value.
#### func ShouldContain
```go
func ShouldContain(actual interface{}, expected ...interface{}) string
```
ShouldContain receives exactly two parameters. The first is a slice and the
second is a proposed member. Membership is determined using ShouldEqual.
#### func ShouldContainKey
```go
func ShouldContainKey(actual interface{}, expected ...interface{}) string
```
ShouldContainKey receives exactly two parameters. The first is a map and the
second is a proposed key. Keys are compared with a simple '=='.
#### func ShouldContainSubstring
```go
func ShouldContainSubstring(actual interface{}, expected ...interface{}) string
```
ShouldContainSubstring receives exactly 2 string parameters and ensures that the
first contains the second as a substring.
#### func ShouldEndWith
```go
func ShouldEndWith(actual interface{}, expected ...interface{}) string
```
ShouldEndWith receives exactly 2 string parameters and ensures that the first
ends with the second.
#### func ShouldEqual
```go
func ShouldEqual(actual interface{}, expected ...interface{}) string
```
ShouldEqual receives exactly two parameters and does an equality check.
#### func ShouldEqualTrimSpace
```go
func ShouldEqualTrimSpace(actual interface{}, expected ...interface{}) string
```
ShouldEqualTrimSpace receives exactly 2 string parameters and ensures that the
first is equal to the second after removing all leading and trailing whitespace
using strings.TrimSpace(first).
#### func ShouldEqualWithout
```go
func ShouldEqualWithout(actual interface{}, expected ...interface{}) string
```
ShouldEqualWithout receives exactly 3 string parameters and ensures that the
first is equal to the second after removing all instances of the third from the
first using strings.Replace(first, third, "", -1).
#### func ShouldHappenAfter
```go
func ShouldHappenAfter(actual interface{}, expected ...interface{}) string
```
ShouldHappenAfter receives exactly 2 time.Time arguments and asserts that the
first happens after the second.
#### func ShouldHappenBefore
```go
func ShouldHappenBefore(actual interface{}, expected ...interface{}) string
```
ShouldHappenBefore receives exactly 2 time.Time arguments and asserts that the
first happens before the second.
#### func ShouldHappenBetween
```go
func ShouldHappenBetween(actual interface{}, expected ...interface{}) string
```
ShouldHappenBetween receives exactly 3 time.Time arguments and asserts that the
first happens between (not on) the second and third.
#### func ShouldHappenOnOrAfter
```go
func ShouldHappenOnOrAfter(actual interface{}, expected ...interface{}) string
```
ShouldHappenOnOrAfter receives exactly 2 time.Time arguments and asserts that
the first happens on or after the second.
#### func ShouldHappenOnOrBefore
```go
func ShouldHappenOnOrBefore(actual interface{}, expected ...interface{}) string
```
ShouldHappenOnOrBefore receives exactly 2 time.Time arguments and asserts that
the first happens on or before the second.
#### func ShouldHappenOnOrBetween
```go
func ShouldHappenOnOrBetween(actual interface{}, expected ...interface{}) string
```
ShouldHappenOnOrBetween receives exactly 3 time.Time arguments and asserts that
the first happens between or on the second and third.
#### func ShouldHappenWithin
```go
func ShouldHappenWithin(actual interface{}, expected ...interface{}) string
```
ShouldHappenWithin receives a time.Time, a time.Duration, and a time.Time (3
arguments) and asserts that the first time.Time happens within or on the
duration specified relative to the other time.Time.
#### func ShouldHaveLength
```go
func ShouldHaveLength(actual interface{}, expected ...interface{}) string
```
ShouldHaveLength receives a collection and a positive integer and asserts that
the length of the collection is equal to the integer provided.
#### func ShouldHaveSameTypeAs
```go
func ShouldHaveSameTypeAs(actual interface{}, expected ...interface{}) string
```
ShouldHaveSameTypeAs receives exactly two parameters and compares their
underlying types for equality.
#### func ShouldImplement
```go
func ShouldImplement(actual interface{}, expectedList ...interface{}) string
```
ShouldImplement receives exactly two parameters and ensures that the first
implements the interface type of the second.
#### func ShouldNotAlmostEqual
```go
func ShouldNotAlmostEqual(actual interface{}, expected ...interface{}) string
```
ShouldNotAlmostEqual is the inverse of ShouldAlmostEqual
#### func ShouldNotBeBetween
```go
func ShouldNotBeBetween(actual interface{}, expected ...interface{}) string
```
ShouldNotBeBetween receives exactly three parameters: an actual value, a lower
bound, and an upper bound. It ensures that the actual value is NOT between both
bounds.
#### func ShouldNotBeBetweenOrEqual
```go
func ShouldNotBeBetweenOrEqual(actual interface{}, expected ...interface{}) string
```
ShouldNotBeBetweenOrEqual receives exactly three parameters: an actual value, a
lower bound, and an upper bound. It ensures that the actual value is nopt
between the bounds nor equal to either of them.
#### func ShouldNotBeBlank
```go
func ShouldNotBeBlank(actual interface{}, expected ...interface{}) string
```
ShouldNotBeBlank receives exactly 1 string parameter and ensures that it is
equal to "".
#### func ShouldNotBeEmpty
```go
func ShouldNotBeEmpty(actual interface{}, expected ...interface{}) string
```
ShouldNotBeEmpty receives a single parameter (actual) and determines whether or
not calling len(actual) would return a value greater than zero. It obeys the
rules specified by the `len` function for determining length:
http://golang.org/pkg/builtin/#len
#### func ShouldNotBeIn
```go
func ShouldNotBeIn(actual interface{}, expected ...interface{}) string
```
ShouldNotBeIn receives at least 2 parameters. The first is a proposed member of
the collection that is passed in either as the second parameter, or of the
collection that is comprised of all the remaining parameters. This assertion
ensures that the proposed member is NOT in the collection (using ShouldEqual).
#### func ShouldNotBeNil
```go
func ShouldNotBeNil(actual interface{}, expected ...interface{}) string
```
ShouldNotBeNil receives a single parameter and ensures that it is not nil.
#### func ShouldNotContain
```go
func ShouldNotContain(actual interface{}, expected ...interface{}) string
```
ShouldNotContain receives exactly two parameters. The first is a slice and the
second is a proposed member. Membership is determinied using ShouldEqual.
#### func ShouldNotContainKey
```go
func ShouldNotContainKey(actual interface{}, expected ...interface{}) string
```
ShouldNotContainKey receives exactly two parameters. The first is a map and the
second is a proposed absent key. Keys are compared with a simple '=='.
#### func ShouldNotContainSubstring
```go
func ShouldNotContainSubstring(actual interface{}, expected ...interface{}) string
```
ShouldNotContainSubstring receives exactly 2 string parameters and ensures that
the first does NOT contain the second as a substring.
#### func ShouldNotEndWith
```go
func ShouldNotEndWith(actual interface{}, expected ...interface{}) string
```
ShouldEndWith receives exactly 2 string parameters and ensures that the first
does not end with the second.
#### func ShouldNotEqual
```go
func ShouldNotEqual(actual interface{}, expected ...interface{}) string
```
ShouldNotEqual receives exactly two parameters and does an inequality check.
#### func ShouldNotHappenOnOrBetween
```go
func ShouldNotHappenOnOrBetween(actual interface{}, expected ...interface{}) string
```
ShouldNotHappenOnOrBetween receives exactly 3 time.Time arguments and asserts
that the first does NOT happen between or on the second or third.
#### func ShouldNotHappenWithin
```go
func ShouldNotHappenWithin(actual interface{}, expected ...interface{}) string
```
ShouldNotHappenWithin receives a time.Time, a time.Duration, and a time.Time (3
arguments) and asserts that the first time.Time does NOT happen within or on the
duration specified relative to the other time.Time.
#### func ShouldNotHaveSameTypeAs
```go
func ShouldNotHaveSameTypeAs(actual interface{}, expected ...interface{}) string
```
ShouldNotHaveSameTypeAs receives exactly two parameters and compares their
underlying types for inequality.
#### func ShouldNotImplement
```go
func ShouldNotImplement(actual interface{}, expectedList ...interface{}) string
```
ShouldNotImplement receives exactly two parameters and ensures that the first
does NOT implement the interface type of the second.
#### func ShouldNotPanic
```go
func ShouldNotPanic(actual interface{}, expected ...interface{}) (message string)
```
ShouldNotPanic receives a void, niladic function and expects to execute the
function without any panic.
#### func ShouldNotPanicWith
```go
func ShouldNotPanicWith(actual interface{}, expected ...interface{}) (message string)
```
ShouldNotPanicWith receives a void, niladic function and expects to recover a
panic whose content differs from the second argument.
#### func ShouldNotPointTo
```go
func ShouldNotPointTo(actual interface{}, expected ...interface{}) string
```
ShouldNotPointTo receives exactly two parameters and checks to see that they
point to different addresess.
#### func ShouldNotResemble
```go
func ShouldNotResemble(actual interface{}, expected ...interface{}) string
```
ShouldNotResemble receives exactly two parameters and does an inverse deep equal
check (see reflect.DeepEqual)
#### func ShouldNotStartWith
```go
func ShouldNotStartWith(actual interface{}, expected ...interface{}) string
```
ShouldNotStartWith receives exactly 2 string parameters and ensures that the
first does not start with the second.
#### func ShouldPanic
```go
func ShouldPanic(actual interface{}, expected ...interface{}) (message string)
```
ShouldPanic receives a void, niladic function and expects to recover a panic.
#### func ShouldPanicWith
```go
func ShouldPanicWith(actual interface{}, expected ...interface{}) (message string)
```
ShouldPanicWith receives a void, niladic function and expects to recover a panic
with the second argument as the content.
#### func ShouldPointTo
```go
func ShouldPointTo(actual interface{}, expected ...interface{}) string
```
ShouldPointTo receives exactly two parameters and checks to see that they point
to the same address.
#### func ShouldResemble
```go
func ShouldResemble(actual interface{}, expected ...interface{}) string
```
ShouldResemble receives exactly two parameters and does a deep equal check (see
reflect.DeepEqual)
#### func ShouldStartWith
```go
func ShouldStartWith(actual interface{}, expected ...interface{}) string
```
ShouldStartWith receives exactly 2 string parameters and ensures that the first
starts with the second.
#### func So
```go
func So(actual interface{}, assert assertion, expected ...interface{}) (bool, string)
```
So is a convenience function (as opposed to an inconvenience function?) for
running assertions on arbitrary arguments in any context, be it for testing or
even application logging. It allows you to perform assertion-like behavior (and
get nicely formatted messages detailing discrepancies) but without the program
blowing up or panicking. All that is required is to import this package and call
`So` with one of the assertions exported by this package as the second
parameter. The first return parameter is a boolean indicating if the assertion
was true. The second return parameter is the well-formatted message showing why
an assertion was incorrect, or blank if the assertion was correct.
Example:
if ok, message := So(x, ShouldBeGreaterThan, y); !ok {
log.Println(message)
}
#### type Assertion
```go
type Assertion struct {
}
```
#### func New
```go
func New(t testingT) *Assertion
```
New swallows the *testing.T struct and prints failed assertions using t.Error.
Example: assertions.New(t).So(1, should.Equal, 1)
#### func (*Assertion) Failed
```go
func (this *Assertion) Failed() bool
```
Failed reports whether any calls to So (on this Assertion instance) have failed.
#### func (*Assertion) So
```go
func (this *Assertion) So(actual interface{}, assert assertion, expected ...interface{}) bool
```
So calls the standalone So function and additionally, calls t.Error in failure
scenarios.
#### type Serializer
```go
type Serializer interface {
// contains filtered or unexported methods
}
```

3
vendor/github.com/smartystreets/assertions/assertions.goconvey generated vendored Normal file
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@ -0,0 +1,3 @@
#ignore
-timeout=1s
-coverpkg=github.com/smartystreets/assertions,github.com/smartystreets/assertions/internal/oglematchers

250
vendor/github.com/smartystreets/assertions/collections.go generated vendored Normal file
View File

@ -0,0 +1,250 @@
package assertions
import (
"fmt"
"reflect"
"github.com/smartystreets/assertions/internal/oglematchers"
)
// ShouldContain receives exactly two parameters. The first is a slice and the
// second is a proposed member. Membership is determined using ShouldEqual.
func ShouldContain(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
if matchError := oglematchers.Contains(expected[0]).Matches(actual); matchError != nil {
typeName := reflect.TypeOf(actual)
if fmt.Sprintf("%v", matchError) == "which is not a slice or array" {
return fmt.Sprintf(shouldHaveBeenAValidCollection, typeName)
}
return fmt.Sprintf(shouldHaveContained, typeName, expected[0])
}
return success
}
// ShouldNotContain receives exactly two parameters. The first is a slice and the
// second is a proposed member. Membership is determinied using ShouldEqual.
func ShouldNotContain(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
typeName := reflect.TypeOf(actual)
if matchError := oglematchers.Contains(expected[0]).Matches(actual); matchError != nil {
if fmt.Sprintf("%v", matchError) == "which is not a slice or array" {
return fmt.Sprintf(shouldHaveBeenAValidCollection, typeName)
}
return success
}
return fmt.Sprintf(shouldNotHaveContained, typeName, expected[0])
}
// ShouldContainKey receives exactly two parameters. The first is a map and the
// second is a proposed key. Keys are compared with a simple '=='.
func ShouldContainKey(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
keys, isMap := mapKeys(actual)
if !isMap {
return fmt.Sprintf(shouldHaveBeenAValidMap, reflect.TypeOf(actual))
}
if !keyFound(keys, expected[0]) {
return fmt.Sprintf(shouldHaveContainedKey, reflect.TypeOf(actual), expected)
}
return ""
}
// ShouldNotContainKey receives exactly two parameters. The first is a map and the
// second is a proposed absent key. Keys are compared with a simple '=='.
func ShouldNotContainKey(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
keys, isMap := mapKeys(actual)
if !isMap {
return fmt.Sprintf(shouldHaveBeenAValidMap, reflect.TypeOf(actual))
}
if keyFound(keys, expected[0]) {
return fmt.Sprintf(shouldNotHaveContainedKey, reflect.TypeOf(actual), expected)
}
return ""
}
func mapKeys(m interface{}) ([]reflect.Value, bool) {
value := reflect.ValueOf(m)
if value.Kind() != reflect.Map {
return nil, false
}
return value.MapKeys(), true
}
func keyFound(keys []reflect.Value, expectedKey interface{}) bool {
found := false
for _, key := range keys {
if key.Interface() == expectedKey {
found = true
}
}
return found
}
// ShouldBeIn receives at least 2 parameters. The first is a proposed member of the collection
// that is passed in either as the second parameter, or of the collection that is comprised
// of all the remaining parameters. This assertion ensures that the proposed member is in
// the collection (using ShouldEqual).
func ShouldBeIn(actual interface{}, expected ...interface{}) string {
if fail := atLeast(1, expected); fail != success {
return fail
}
if len(expected) == 1 {
return shouldBeIn(actual, expected[0])
}
return shouldBeIn(actual, expected)
}
func shouldBeIn(actual interface{}, expected interface{}) string {
if matchError := oglematchers.Contains(actual).Matches(expected); matchError != nil {
return fmt.Sprintf(shouldHaveBeenIn, actual, reflect.TypeOf(expected))
}
return success
}
// ShouldNotBeIn receives at least 2 parameters. The first is a proposed member of the collection
// that is passed in either as the second parameter, or of the collection that is comprised
// of all the remaining parameters. This assertion ensures that the proposed member is NOT in
// the collection (using ShouldEqual).
func ShouldNotBeIn(actual interface{}, expected ...interface{}) string {
if fail := atLeast(1, expected); fail != success {
return fail
}
if len(expected) == 1 {
return shouldNotBeIn(actual, expected[0])
}
return shouldNotBeIn(actual, expected)
}
func shouldNotBeIn(actual interface{}, expected interface{}) string {
if matchError := oglematchers.Contains(actual).Matches(expected); matchError == nil {
return fmt.Sprintf(shouldNotHaveBeenIn, actual, reflect.TypeOf(expected))
}
return success
}
// ShouldBeEmpty receives a single parameter (actual) and determines whether or not
// calling len(actual) would return `0`. It obeys the rules specified by the len
// function for determining length: http://golang.org/pkg/builtin/#len
func ShouldBeEmpty(actual interface{}, expected ...interface{}) string {
if fail := need(0, expected); fail != success {
return fail
}
if actual == nil {
return success
}
value := reflect.ValueOf(actual)
switch value.Kind() {
case reflect.Slice:
if value.Len() == 0 {
return success
}
case reflect.Chan:
if value.Len() == 0 {
return success
}
case reflect.Map:
if value.Len() == 0 {
return success
}
case reflect.String:
if value.Len() == 0 {
return success
}
case reflect.Ptr:
elem := value.Elem()
kind := elem.Kind()
if (kind == reflect.Slice || kind == reflect.Array) && elem.Len() == 0 {
return success
}
}
return fmt.Sprintf(shouldHaveBeenEmpty, actual)
}
// ShouldNotBeEmpty receives a single parameter (actual) and determines whether or not
// calling len(actual) would return a value greater than zero. It obeys the rules
// specified by the `len` function for determining length: http://golang.org/pkg/builtin/#len
func ShouldNotBeEmpty(actual interface{}, expected ...interface{}) string {
if fail := need(0, expected); fail != success {
return fail
}
if empty := ShouldBeEmpty(actual, expected...); empty != success {
return success
}
return fmt.Sprintf(shouldNotHaveBeenEmpty, actual)
}
// ShouldHaveLength receives 2 parameters. The first is a collection to check
// the length of, the second being the expected length. It obeys the rules
// specified by the len function for determining length:
// http://golang.org/pkg/builtin/#len
func ShouldHaveLength(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
var expectedLen int64
lenValue := reflect.ValueOf(expected[0])
switch lenValue.Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
expectedLen = lenValue.Int()
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
expectedLen = int64(lenValue.Uint())
default:
return fmt.Sprintf(shouldHaveBeenAValidInteger, reflect.TypeOf(expected[0]))
}
if expectedLen < 0 {
return fmt.Sprintf(shouldHaveBeenAValidLength, expected[0])
}
value := reflect.ValueOf(actual)
switch value.Kind() {
case reflect.Slice:
if int64(value.Len()) == expectedLen {
return success
}
case reflect.Chan:
if int64(value.Len()) == expectedLen {
return success
}
case reflect.Map:
if int64(value.Len()) == expectedLen {
return success
}
case reflect.String:
if int64(value.Len()) == expectedLen {
return success
}
case reflect.Ptr:
elem := value.Elem()
kind := elem.Kind()
if (kind == reflect.Slice || kind == reflect.Array) && int64(elem.Len()) == expectedLen {
return success
}
default:
return fmt.Sprintf(shouldHaveBeenAValidCollection, reflect.TypeOf(actual))
}
return fmt.Sprintf(shouldHaveHadLength, actual, expectedLen)
}

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// Package assertions contains the implementations for all assertions which
// are referenced in goconvey's `convey` package
// (github.com/smartystreets/goconvey/convey) for use with the So(...) method.
// They can also be used in traditional Go test functions and even in
// applicaitons.
package assertions
import (
"fmt"
"runtime"
)
// By default we use a no-op serializer. The actual Serializer provides a JSON
// representation of failure results on selected assertions so the goconvey
// web UI can display a convenient diff.
var serializer Serializer = new(noopSerializer)
// GoConveyMode provides control over JSON serialization of failures. When
// using the assertions in this package from the convey package JSON results
// are very helpful and can be rendered in a DIFF view. In that case, this function
// will be called with a true value to enable the JSON serialization. By default,
// the assertions in this package will not serializer a JSON result, making
// standalone ussage more convenient.
func GoConveyMode(yes bool) {
if yes {
serializer = newSerializer()
} else {
serializer = new(noopSerializer)
}
}
type testingT interface {
Error(args ...interface{})
}
type Assertion struct {
t testingT
failed bool
}
// New swallows the *testing.T struct and prints failed assertions using t.Error.
// Example: assertions.New(t).So(1, should.Equal, 1)
func New(t testingT) *Assertion {
return &Assertion{t: t}
}
// Failed reports whether any calls to So (on this Assertion instance) have failed.
func (this *Assertion) Failed() bool {
return this.failed
}
// So calls the standalone So function and additionally, calls t.Error in failure scenarios.
func (this *Assertion) So(actual interface{}, assert assertion, expected ...interface{}) bool {
ok, result := So(actual, assert, expected...)
if !ok {
this.failed = true
_, file, line, _ := runtime.Caller(1)
this.t.Error(fmt.Sprintf("\n%s:%d\n%s", file, line, result))
}
return ok
}
// So is a convenience function (as opposed to an inconvenience function?)
// for running assertions on arbitrary arguments in any context, be it for testing or even
// application logging. It allows you to perform assertion-like behavior (and get nicely
// formatted messages detailing discrepancies) but without the program blowing up or panicking.
// All that is required is to import this package and call `So` with one of the assertions
// exported by this package as the second parameter.
// The first return parameter is a boolean indicating if the assertion was true. The second
// return parameter is the well-formatted message showing why an assertion was incorrect, or
// blank if the assertion was correct.
//
// Example:
//
// if ok, message := So(x, ShouldBeGreaterThan, y); !ok {
// log.Println(message)
// }
//
func So(actual interface{}, assert assertion, expected ...interface{}) (bool, string) {
if result := so(actual, assert, expected...); len(result) == 0 {
return true, result
} else {
return false, result
}
}
// so is like So, except that it only returns the string message, which is blank if the
// assertion passed. Used to facilitate testing.
func so(actual interface{}, assert func(interface{}, ...interface{}) string, expected ...interface{}) string {
return assert(actual, expected...)
}
// assertion is an alias for a function with a signature that the So()
// function can handle. Any future or custom assertions should conform to this
// method signature. The return value should be an empty string if the assertion
// passes and a well-formed failure message if not.
type assertion func(actual interface{}, expected ...interface{}) string
////////////////////////////////////////////////////////////////////////////

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package assertions
import (
"errors"
"fmt"
"math"
"reflect"
"strings"
"github.com/smartystreets/assertions/internal/oglematchers"
)
// default acceptable delta for ShouldAlmostEqual
const defaultDelta = 0.0000000001
// ShouldEqual receives exactly two parameters and does an equality check.
func ShouldEqual(actual interface{}, expected ...interface{}) string {
if message := need(1, expected); message != success {
return message
}
return shouldEqual(actual, expected[0])
}
func shouldEqual(actual, expected interface{}) (message string) {
defer func() {
if r := recover(); r != nil {
message = serializer.serialize(expected, actual, fmt.Sprintf(shouldHaveBeenEqual, expected, actual))
return
}
}()
if matchError := oglematchers.Equals(expected).Matches(actual); matchError != nil {
expectedSyntax := fmt.Sprintf("%v", expected)
actualSyntax := fmt.Sprintf("%v", actual)
if expectedSyntax == actualSyntax && reflect.TypeOf(expected) != reflect.TypeOf(actual) {
message = fmt.Sprintf(shouldHaveBeenEqualTypeMismatch, expected, expected, actual, actual)
} else {
message = fmt.Sprintf(shouldHaveBeenEqual, expected, actual)
}
message = serializer.serialize(expected, actual, message)
return
}
return success
}
// ShouldNotEqual receives exactly two parameters and does an inequality check.
func ShouldNotEqual(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
} else if ShouldEqual(actual, expected[0]) == success {
return fmt.Sprintf(shouldNotHaveBeenEqual, actual, expected[0])
}
return success
}
// ShouldAlmostEqual makes sure that two parameters are close enough to being equal.
// The acceptable delta may be specified with a third argument,
// or a very small default delta will be used.
func ShouldAlmostEqual(actual interface{}, expected ...interface{}) string {
actualFloat, expectedFloat, deltaFloat, err := cleanAlmostEqualInput(actual, expected...)
if err != "" {
return err
}
if math.Abs(actualFloat-expectedFloat) <= deltaFloat {
return success
} else {
return fmt.Sprintf(shouldHaveBeenAlmostEqual, actualFloat, expectedFloat)
}
}
// ShouldNotAlmostEqual is the inverse of ShouldAlmostEqual
func ShouldNotAlmostEqual(actual interface{}, expected ...interface{}) string {
actualFloat, expectedFloat, deltaFloat, err := cleanAlmostEqualInput(actual, expected...)
if err != "" {
return err
}
if math.Abs(actualFloat-expectedFloat) > deltaFloat {
return success
} else {
return fmt.Sprintf(shouldHaveNotBeenAlmostEqual, actualFloat, expectedFloat)
}
}
func cleanAlmostEqualInput(actual interface{}, expected ...interface{}) (float64, float64, float64, string) {
deltaFloat := 0.0000000001
if len(expected) == 0 {
return 0.0, 0.0, 0.0, "This assertion requires exactly one comparison value and an optional delta (you provided neither)"
} else if len(expected) == 2 {
delta, err := getFloat(expected[1])
if err != nil {
return 0.0, 0.0, 0.0, "delta must be a numerical type"
}
deltaFloat = delta
} else if len(expected) > 2 {
return 0.0, 0.0, 0.0, "This assertion requires exactly one comparison value and an optional delta (you provided more values)"
}
actualFloat, err := getFloat(actual)
if err != nil {
return 0.0, 0.0, 0.0, err.Error()
}
expectedFloat, err := getFloat(expected[0])
if err != nil {
return 0.0, 0.0, 0.0, err.Error()
}
return actualFloat, expectedFloat, deltaFloat, ""
}
// returns the float value of any real number, or error if it is not a numerical type
func getFloat(num interface{}) (float64, error) {
numValue := reflect.ValueOf(num)
numKind := numValue.Kind()
if numKind == reflect.Int ||
numKind == reflect.Int8 ||
numKind == reflect.Int16 ||
numKind == reflect.Int32 ||
numKind == reflect.Int64 {
return float64(numValue.Int()), nil
} else if numKind == reflect.Uint ||
numKind == reflect.Uint8 ||
numKind == reflect.Uint16 ||
numKind == reflect.Uint32 ||
numKind == reflect.Uint64 {
return float64(numValue.Uint()), nil
} else if numKind == reflect.Float32 ||
numKind == reflect.Float64 {
return numValue.Float(), nil
} else {
return 0.0, errors.New("must be a numerical type, but was " + numKind.String())
}
}
// ShouldResemble receives exactly two parameters and does a deep equal check (see reflect.DeepEqual)
func ShouldResemble(actual interface{}, expected ...interface{}) string {
if message := need(1, expected); message != success {
return message
}
if matchError := oglematchers.DeepEquals(expected[0]).Matches(actual); matchError != nil {
expectedSyntax := fmt.Sprintf("%#v", expected[0])
actualSyntax := fmt.Sprintf("%#v", actual)
var message string
if expectedSyntax == actualSyntax {
message = fmt.Sprintf(shouldHaveResembledTypeMismatch, expected[0], expected[0], actual, actual)
} else {
message = fmt.Sprintf(shouldHaveResembled, expected[0], actual)
}
return serializer.serializeDetailed(expected[0], actual, message)
}
return success
}
// ShouldNotResemble receives exactly two parameters and does an inverse deep equal check (see reflect.DeepEqual)
func ShouldNotResemble(actual interface{}, expected ...interface{}) string {
if message := need(1, expected); message != success {
return message
} else if ShouldResemble(actual, expected[0]) == success {
return fmt.Sprintf(shouldNotHaveResembled, actual, expected[0])
}
return success
}
// ShouldPointTo receives exactly two parameters and checks to see that they point to the same address.
func ShouldPointTo(actual interface{}, expected ...interface{}) string {
if message := need(1, expected); message != success {
return message
}
return shouldPointTo(actual, expected[0])
}
func shouldPointTo(actual, expected interface{}) string {
actualValue := reflect.ValueOf(actual)
expectedValue := reflect.ValueOf(expected)
if ShouldNotBeNil(actual) != success {
return fmt.Sprintf(shouldHaveBeenNonNilPointer, "first", "nil")
} else if ShouldNotBeNil(expected) != success {
return fmt.Sprintf(shouldHaveBeenNonNilPointer, "second", "nil")
} else if actualValue.Kind() != reflect.Ptr {
return fmt.Sprintf(shouldHaveBeenNonNilPointer, "first", "not")
} else if expectedValue.Kind() != reflect.Ptr {
return fmt.Sprintf(shouldHaveBeenNonNilPointer, "second", "not")
} else if ShouldEqual(actualValue.Pointer(), expectedValue.Pointer()) != success {
actualAddress := reflect.ValueOf(actual).Pointer()
expectedAddress := reflect.ValueOf(expected).Pointer()
return serializer.serialize(expectedAddress, actualAddress, fmt.Sprintf(shouldHavePointedTo,
actual, actualAddress,
expected, expectedAddress))
}
return success
}
// ShouldNotPointTo receives exactly two parameters and checks to see that they point to different addresess.
func ShouldNotPointTo(actual interface{}, expected ...interface{}) string {
if message := need(1, expected); message != success {
return message
}
compare := ShouldPointTo(actual, expected[0])
if strings.HasPrefix(compare, shouldBePointers) {
return compare
} else if compare == success {
return fmt.Sprintf(shouldNotHavePointedTo, actual, expected[0], reflect.ValueOf(actual).Pointer())
}
return success
}
// ShouldBeNil receives a single parameter and ensures that it is nil.
func ShouldBeNil(actual interface{}, expected ...interface{}) string {
if fail := need(0, expected); fail != success {
return fail
} else if actual == nil {
return success
} else if interfaceHasNilValue(actual) {
return success
}
return fmt.Sprintf(shouldHaveBeenNil, actual)
}
func interfaceHasNilValue(actual interface{}) bool {
value := reflect.ValueOf(actual)
kind := value.Kind()
nilable := kind == reflect.Slice ||
kind == reflect.Chan ||
kind == reflect.Func ||
kind == reflect.Ptr ||
kind == reflect.Map
// Careful: reflect.Value.IsNil() will panic unless it's an interface, chan, map, func, slice, or ptr
// Reference: http://golang.org/pkg/reflect/#Value.IsNil
return nilable && value.IsNil()
}
// ShouldNotBeNil receives a single parameter and ensures that it is not nil.
func ShouldNotBeNil(actual interface{}, expected ...interface{}) string {
if fail := need(0, expected); fail != success {
return fail
} else if ShouldBeNil(actual) == success {
return fmt.Sprintf(shouldNotHaveBeenNil, actual)
}
return success
}
// ShouldBeTrue receives a single parameter and ensures that it is true.
func ShouldBeTrue(actual interface{}, expected ...interface{}) string {
if fail := need(0, expected); fail != success {
return fail
} else if actual != true {
return fmt.Sprintf(shouldHaveBeenTrue, actual)
}
return success
}
// ShouldBeFalse receives a single parameter and ensures that it is false.
func ShouldBeFalse(actual interface{}, expected ...interface{}) string {
if fail := need(0, expected); fail != success {
return fail
} else if actual != false {
return fmt.Sprintf(shouldHaveBeenFalse, actual)
}
return success
}
// ShouldBeZeroValue receives a single parameter and ensures that it is
// the Go equivalent of the default value, or "zero" value.
func ShouldBeZeroValue(actual interface{}, expected ...interface{}) string {
if fail := need(0, expected); fail != success {
return fail
}
zeroVal := reflect.Zero(reflect.TypeOf(actual)).Interface()
if !reflect.DeepEqual(zeroVal, actual) {
return serializer.serialize(zeroVal, actual, fmt.Sprintf(shouldHaveBeenZeroValue, actual))
}
return success
}

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vendor/github.com/smartystreets/assertions/filter.go generated vendored Normal file
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package assertions
import "fmt"
const (
success = ""
needExactValues = "This assertion requires exactly %d comparison values (you provided %d)."
needNonEmptyCollection = "This assertion requires at least 1 comparison value (you provided 0)."
)
func need(needed int, expected []interface{}) string {
if len(expected) != needed {
return fmt.Sprintf(needExactValues, needed, len(expected))
}
return success
}
func atLeast(minimum int, expected []interface{}) string {
if len(expected) < 1 {
return needNonEmptyCollection
}
return success
}

202
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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
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"License" shall mean the terms and conditions for use, reproduction,
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"You" (or "Your") shall mean an individual or Legal Entity
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"Work" shall mean the work of authorship, whether in Source or
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58
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[![GoDoc](https://godoc.org/github.com/smartystreets/assertions/internal/oglematchers?status.svg)](https://godoc.org/github.com/smartystreets/assertions/internal/oglematchers)
`oglematchers` is a package for the Go programming language containing a set of
matchers, useful in a testing or mocking framework, inspired by and mostly
compatible with [Google Test][googletest] for C++ and
[Google JS Test][google-js-test]. The package is used by the
[ogletest][ogletest] testing framework and [oglemock][oglemock] mocking
framework, which may be more directly useful to you, but can be generically used
elsewhere as well.
A "matcher" is simply an object with a `Matches` method defining a set of golang
values matched by the matcher, and a `Description` method describing that set.
For example, here are some matchers:
```go
// Numbers
Equals(17.13)
LessThan(19)
// Strings
Equals("taco")
HasSubstr("burrito")
MatchesRegex("t.*o")
// Combining matchers
AnyOf(LessThan(17), GreaterThan(19))
```
There are lots more; see [here][reference] for a reference. You can also add
your own simply by implementing the `oglematchers.Matcher` interface.
Installation
------------
First, make sure you have installed Go 1.0.2 or newer. See
[here][golang-install] for instructions.
Use the following command to install `oglematchers` and keep it up to date:
go get -u github.com/smartystreets/assertions/internal/oglematchers
Documentation
-------------
See [here][reference] for documentation. Alternatively, you can install the
package and then use `godoc`:
godoc github.com/smartystreets/assertions/internal/oglematchers
[reference]: http://godoc.org/github.com/smartystreets/assertions/internal/oglematchers
[golang-install]: http://golang.org/doc/install.html
[googletest]: http://code.google.com/p/googletest/
[google-js-test]: http://code.google.com/p/google-js-test/
[ogletest]: http://github.com/smartystreets/assertions/internal/ogletest
[oglemock]: http://github.com/smartystreets/assertions/internal/oglemock

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// Copyright 2011 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
import (
"strings"
)
// AllOf accepts a set of matchers S and returns a matcher that follows the
// algorithm below when considering a candidate c:
//
// 1. Return true if for every Matcher m in S, m matches c.
//
// 2. Otherwise, if there is a matcher m in S such that m returns a fatal
// error for c, return that matcher's error message.
//
// 3. Otherwise, return false with the error from some wrapped matcher.
//
// This is akin to a logical AND operation for matchers.
func AllOf(matchers ...Matcher) Matcher {
return &allOfMatcher{matchers}
}
type allOfMatcher struct {
wrappedMatchers []Matcher
}
func (m *allOfMatcher) Description() string {
// Special case: the empty set.
if len(m.wrappedMatchers) == 0 {
return "is anything"
}
// Join the descriptions for the wrapped matchers.
wrappedDescs := make([]string, len(m.wrappedMatchers))
for i, wrappedMatcher := range m.wrappedMatchers {
wrappedDescs[i] = wrappedMatcher.Description()
}
return strings.Join(wrappedDescs, ", and ")
}
func (m *allOfMatcher) Matches(c interface{}) (err error) {
for _, wrappedMatcher := range m.wrappedMatchers {
if wrappedErr := wrappedMatcher.Matches(c); wrappedErr != nil {
err = wrappedErr
// If the error is fatal, return immediately with this error.
_, ok := wrappedErr.(*FatalError)
if ok {
return
}
}
}
return
}

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// Copyright 2011 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
// Any returns a matcher that matches any value.
func Any() Matcher {
return &anyMatcher{}
}
type anyMatcher struct {
}
func (m *anyMatcher) Description() string {
return "is anything"
}
func (m *anyMatcher) Matches(c interface{}) error {
return nil
}

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// Copyright 2011 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
import (
"errors"
"fmt"
"reflect"
"strings"
)
// AnyOf accepts a set of values S and returns a matcher that follows the
// algorithm below when considering a candidate c:
//
// 1. If there exists a value m in S such that m implements the Matcher
// interface and m matches c, return true.
//
// 2. Otherwise, if there exists a value v in S such that v does not implement
// the Matcher interface and the matcher Equals(v) matches c, return true.
//
// 3. Otherwise, if there is a value m in S such that m implements the Matcher
// interface and m returns a fatal error for c, return that fatal error.
//
// 4. Otherwise, return false.
//
// This is akin to a logical OR operation for matchers, with non-matchers x
// being treated as Equals(x).
func AnyOf(vals ...interface{}) Matcher {
// Get ahold of a type variable for the Matcher interface.
var dummy *Matcher
matcherType := reflect.TypeOf(dummy).Elem()
// Create a matcher for each value, or use the value itself if it's already a
// matcher.
wrapped := make([]Matcher, len(vals))
for i, v := range vals {
t := reflect.TypeOf(v)
if t != nil && t.Implements(matcherType) {
wrapped[i] = v.(Matcher)
} else {
wrapped[i] = Equals(v)
}
}
return &anyOfMatcher{wrapped}
}
type anyOfMatcher struct {
wrapped []Matcher
}
func (m *anyOfMatcher) Description() string {
wrappedDescs := make([]string, len(m.wrapped))
for i, matcher := range m.wrapped {
wrappedDescs[i] = matcher.Description()
}
return fmt.Sprintf("or(%s)", strings.Join(wrappedDescs, ", "))
}
func (m *anyOfMatcher) Matches(c interface{}) (err error) {
err = errors.New("")
// Try each matcher in turn.
for _, matcher := range m.wrapped {
wrappedErr := matcher.Matches(c)
// Return immediately if there's a match.
if wrappedErr == nil {
err = nil
return
}
// Note the fatal error, if any.
if _, isFatal := wrappedErr.(*FatalError); isFatal {
err = wrappedErr
}
}
return
}

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// Copyright 2012 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
import (
"fmt"
"reflect"
)
// Return a matcher that matches arrays slices with at least one element that
// matches the supplied argument. If the argument x is not itself a Matcher,
// this is equivalent to Contains(Equals(x)).
func Contains(x interface{}) Matcher {
var result containsMatcher
var ok bool
if result.elementMatcher, ok = x.(Matcher); !ok {
result.elementMatcher = Equals(x)
}
return &result
}
type containsMatcher struct {
elementMatcher Matcher
}
func (m *containsMatcher) Description() string {
return fmt.Sprintf("contains: %s", m.elementMatcher.Description())
}
func (m *containsMatcher) Matches(candidate interface{}) error {
// The candidate must be a slice or an array.
v := reflect.ValueOf(candidate)
if v.Kind() != reflect.Slice && v.Kind() != reflect.Array {
return NewFatalError("which is not a slice or array")
}
// Check each element.
for i := 0; i < v.Len(); i++ {
elem := v.Index(i)
if matchErr := m.elementMatcher.Matches(elem.Interface()); matchErr == nil {
return nil
}
}
return fmt.Errorf("")
}

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// Copyright 2012 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
import (
"bytes"
"errors"
"fmt"
"reflect"
)
var byteSliceType reflect.Type = reflect.TypeOf([]byte{})
// DeepEquals returns a matcher that matches based on 'deep equality', as
// defined by the reflect package. This matcher requires that values have
// identical types to x.
func DeepEquals(x interface{}) Matcher {
return &deepEqualsMatcher{x}
}
type deepEqualsMatcher struct {
x interface{}
}
func (m *deepEqualsMatcher) Description() string {
xDesc := fmt.Sprintf("%v", m.x)
xValue := reflect.ValueOf(m.x)
// Special case: fmt.Sprintf presents nil slices as "[]", but
// reflect.DeepEqual makes a distinction between nil and empty slices. Make
// this less confusing.
if xValue.Kind() == reflect.Slice && xValue.IsNil() {
xDesc = "<nil slice>"
}
return fmt.Sprintf("deep equals: %s", xDesc)
}
func (m *deepEqualsMatcher) Matches(c interface{}) error {
// Make sure the types match.
ct := reflect.TypeOf(c)
xt := reflect.TypeOf(m.x)
if ct != xt {
return NewFatalError(fmt.Sprintf("which is of type %v", ct))
}
// Special case: handle byte slices more efficiently.
cValue := reflect.ValueOf(c)
xValue := reflect.ValueOf(m.x)
if ct == byteSliceType && !cValue.IsNil() && !xValue.IsNil() {
xBytes := m.x.([]byte)
cBytes := c.([]byte)
if bytes.Equal(cBytes, xBytes) {
return nil
}
return errors.New("")
}
// Defer to the reflect package.
if reflect.DeepEqual(m.x, c) {
return nil
}
// Special case: if the comparison failed because c is the nil slice, given
// an indication of this (since its value is printed as "[]").
if cValue.Kind() == reflect.Slice && cValue.IsNil() {
return errors.New("which is nil")
}
return errors.New("")
}

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// Copyright 2012 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
import (
"errors"
"fmt"
"reflect"
"strings"
)
// Given a list of arguments M, ElementsAre returns a matcher that matches
// arrays and slices A where all of the following hold:
//
// * A is the same length as M.
//
// * For each i < len(A) where M[i] is a matcher, A[i] matches M[i].
//
// * For each i < len(A) where M[i] is not a matcher, A[i] matches
// Equals(M[i]).
//
func ElementsAre(M ...interface{}) Matcher {
// Copy over matchers, or convert to Equals(x) for non-matcher x.
subMatchers := make([]Matcher, len(M))
for i, x := range M {
if matcher, ok := x.(Matcher); ok {
subMatchers[i] = matcher
continue
}
subMatchers[i] = Equals(x)
}
return &elementsAreMatcher{subMatchers}
}
type elementsAreMatcher struct {
subMatchers []Matcher
}
func (m *elementsAreMatcher) Description() string {
subDescs := make([]string, len(m.subMatchers))
for i, sm := range m.subMatchers {
subDescs[i] = sm.Description()
}
return fmt.Sprintf("elements are: [%s]", strings.Join(subDescs, ", "))
}
func (m *elementsAreMatcher) Matches(candidates interface{}) error {
// The candidate must be a slice or an array.
v := reflect.ValueOf(candidates)
if v.Kind() != reflect.Slice && v.Kind() != reflect.Array {
return NewFatalError("which is not a slice or array")
}
// The length must be correct.
if v.Len() != len(m.subMatchers) {
return errors.New(fmt.Sprintf("which is of length %d", v.Len()))
}
// Check each element.
for i, subMatcher := range m.subMatchers {
c := v.Index(i)
if matchErr := subMatcher.Matches(c.Interface()); matchErr != nil {
// Return an errors indicating which element doesn't match. If the
// matcher error was fatal, make this one fatal too.
err := errors.New(fmt.Sprintf("whose element %d doesn't match", i))
if _, isFatal := matchErr.(*FatalError); isFatal {
err = NewFatalError(err.Error())
}
return err
}
}
return nil
}

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// Copyright 2011 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
import (
"errors"
"fmt"
"math"
"reflect"
)
// Equals(x) returns a matcher that matches values v such that v and x are
// equivalent. This includes the case when the comparison v == x using Go's
// built-in comparison operator is legal (except for structs, which this
// matcher does not support), but for convenience the following rules also
// apply:
//
// * Type checking is done based on underlying types rather than actual
// types, so that e.g. two aliases for string can be compared:
//
// type stringAlias1 string
// type stringAlias2 string
//
// a := "taco"
// b := stringAlias1("taco")
// c := stringAlias2("taco")
//
// ExpectTrue(a == b) // Legal, passes
// ExpectTrue(b == c) // Illegal, doesn't compile
//
// ExpectThat(a, Equals(b)) // Passes
// ExpectThat(b, Equals(c)) // Passes
//
// * Values of numeric type are treated as if they were abstract numbers, and
// compared accordingly. Therefore Equals(17) will match int(17),
// int16(17), uint(17), float32(17), complex64(17), and so on.
//
// If you want a stricter matcher that contains no such cleverness, see
// IdenticalTo instead.
//
// Arrays are supported by this matcher, but do not participate in the
// exceptions above. Two arrays compared with this matcher must have identical
// types, and their element type must itself be comparable according to Go's ==
// operator.
func Equals(x interface{}) Matcher {
v := reflect.ValueOf(x)
// This matcher doesn't support structs.
if v.Kind() == reflect.Struct {
panic(fmt.Sprintf("oglematchers.Equals: unsupported kind %v", v.Kind()))
}
// The == operator is not defined for non-nil slices.
if v.Kind() == reflect.Slice && v.Pointer() != uintptr(0) {
panic(fmt.Sprintf("oglematchers.Equals: non-nil slice"))
}
return &equalsMatcher{v}
}
type equalsMatcher struct {
expectedValue reflect.Value
}
////////////////////////////////////////////////////////////////////////
// Numeric types
////////////////////////////////////////////////////////////////////////
func isSignedInteger(v reflect.Value) bool {
k := v.Kind()
return k >= reflect.Int && k <= reflect.Int64
}
func isUnsignedInteger(v reflect.Value) bool {
k := v.Kind()
return k >= reflect.Uint && k <= reflect.Uintptr
}
func isInteger(v reflect.Value) bool {
return isSignedInteger(v) || isUnsignedInteger(v)
}
func isFloat(v reflect.Value) bool {
k := v.Kind()
return k == reflect.Float32 || k == reflect.Float64
}
func isComplex(v reflect.Value) bool {
k := v.Kind()
return k == reflect.Complex64 || k == reflect.Complex128
}
func checkAgainstInt64(e int64, c reflect.Value) (err error) {
err = errors.New("")
switch {
case isSignedInteger(c):
if c.Int() == e {
err = nil
}
case isUnsignedInteger(c):
u := c.Uint()
if u <= math.MaxInt64 && int64(u) == e {
err = nil
}
// Turn around the various floating point types so that the checkAgainst*
// functions for them can deal with precision issues.
case isFloat(c), isComplex(c):
return Equals(c.Interface()).Matches(e)
default:
err = NewFatalError("which is not numeric")
}
return
}
func checkAgainstUint64(e uint64, c reflect.Value) (err error) {
err = errors.New("")
switch {
case isSignedInteger(c):
i := c.Int()
if i >= 0 && uint64(i) == e {
err = nil
}
case isUnsignedInteger(c):
if c.Uint() == e {
err = nil
}
// Turn around the various floating point types so that the checkAgainst*
// functions for them can deal with precision issues.
case isFloat(c), isComplex(c):
return Equals(c.Interface()).Matches(e)
default:
err = NewFatalError("which is not numeric")
}
return
}
func checkAgainstFloat32(e float32, c reflect.Value) (err error) {
err = errors.New("")
switch {
case isSignedInteger(c):
if float32(c.Int()) == e {
err = nil
}
case isUnsignedInteger(c):
if float32(c.Uint()) == e {
err = nil
}
case isFloat(c):
// Compare using float32 to avoid a false sense of precision; otherwise
// e.g. Equals(float32(0.1)) won't match float32(0.1).
if float32(c.Float()) == e {
err = nil
}
case isComplex(c):
comp := c.Complex()
rl := real(comp)
im := imag(comp)
// Compare using float32 to avoid a false sense of precision; otherwise
// e.g. Equals(float32(0.1)) won't match (0.1 + 0i).
if im == 0 && float32(rl) == e {
err = nil
}
default:
err = NewFatalError("which is not numeric")
}
return
}
func checkAgainstFloat64(e float64, c reflect.Value) (err error) {
err = errors.New("")
ck := c.Kind()
switch {
case isSignedInteger(c):
if float64(c.Int()) == e {
err = nil
}
case isUnsignedInteger(c):
if float64(c.Uint()) == e {
err = nil
}
// If the actual value is lower precision, turn the comparison around so we
// apply the low-precision rules. Otherwise, e.g. Equals(0.1) may not match
// float32(0.1).
case ck == reflect.Float32 || ck == reflect.Complex64:
return Equals(c.Interface()).Matches(e)
// Otherwise, compare with double precision.
case isFloat(c):
if c.Float() == e {
err = nil
}
case isComplex(c):
comp := c.Complex()
rl := real(comp)
im := imag(comp)
if im == 0 && rl == e {
err = nil
}
default:
err = NewFatalError("which is not numeric")
}
return
}
func checkAgainstComplex64(e complex64, c reflect.Value) (err error) {
err = errors.New("")
realPart := real(e)
imaginaryPart := imag(e)
switch {
case isInteger(c) || isFloat(c):
// If we have no imaginary part, then we should just compare against the
// real part. Otherwise, we can't be equal.
if imaginaryPart != 0 {
return
}
return checkAgainstFloat32(realPart, c)
case isComplex(c):
// Compare using complex64 to avoid a false sense of precision; otherwise
// e.g. Equals(0.1 + 0i) won't match float32(0.1).
if complex64(c.Complex()) == e {
err = nil
}
default:
err = NewFatalError("which is not numeric")
}
return
}
func checkAgainstComplex128(e complex128, c reflect.Value) (err error) {
err = errors.New("")
realPart := real(e)
imaginaryPart := imag(e)
switch {
case isInteger(c) || isFloat(c):
// If we have no imaginary part, then we should just compare against the
// real part. Otherwise, we can't be equal.
if imaginaryPart != 0 {
return
}
return checkAgainstFloat64(realPart, c)
case isComplex(c):
if c.Complex() == e {
err = nil
}
default:
err = NewFatalError("which is not numeric")
}
return
}
////////////////////////////////////////////////////////////////////////
// Other types
////////////////////////////////////////////////////////////////////////
func checkAgainstBool(e bool, c reflect.Value) (err error) {
if c.Kind() != reflect.Bool {
err = NewFatalError("which is not a bool")
return
}
err = errors.New("")
if c.Bool() == e {
err = nil
}
return
}
func checkAgainstChan(e reflect.Value, c reflect.Value) (err error) {
// Create a description of e's type, e.g. "chan int".
typeStr := fmt.Sprintf("%s %s", e.Type().ChanDir(), e.Type().Elem())
// Make sure c is a chan of the correct type.
if c.Kind() != reflect.Chan ||
c.Type().ChanDir() != e.Type().ChanDir() ||
c.Type().Elem() != e.Type().Elem() {
err = NewFatalError(fmt.Sprintf("which is not a %s", typeStr))
return
}
err = errors.New("")
if c.Pointer() == e.Pointer() {
err = nil
}
return
}
func checkAgainstFunc(e reflect.Value, c reflect.Value) (err error) {
// Make sure c is a function.
if c.Kind() != reflect.Func {
err = NewFatalError("which is not a function")
return
}
err = errors.New("")
if c.Pointer() == e.Pointer() {
err = nil
}
return
}
func checkAgainstMap(e reflect.Value, c reflect.Value) (err error) {
// Make sure c is a map.
if c.Kind() != reflect.Map {
err = NewFatalError("which is not a map")
return
}
err = errors.New("")
if c.Pointer() == e.Pointer() {
err = nil
}
return
}
func checkAgainstPtr(e reflect.Value, c reflect.Value) (err error) {
// Create a description of e's type, e.g. "*int".
typeStr := fmt.Sprintf("*%v", e.Type().Elem())
// Make sure c is a pointer of the correct type.
if c.Kind() != reflect.Ptr ||
c.Type().Elem() != e.Type().Elem() {
err = NewFatalError(fmt.Sprintf("which is not a %s", typeStr))
return
}
err = errors.New("")
if c.Pointer() == e.Pointer() {
err = nil
}
return
}
func checkAgainstSlice(e reflect.Value, c reflect.Value) (err error) {
// Create a description of e's type, e.g. "[]int".
typeStr := fmt.Sprintf("[]%v", e.Type().Elem())
// Make sure c is a slice of the correct type.
if c.Kind() != reflect.Slice ||
c.Type().Elem() != e.Type().Elem() {
err = NewFatalError(fmt.Sprintf("which is not a %s", typeStr))
return
}
err = errors.New("")
if c.Pointer() == e.Pointer() {
err = nil
}
return
}
func checkAgainstString(e reflect.Value, c reflect.Value) (err error) {
// Make sure c is a string.
if c.Kind() != reflect.String {
err = NewFatalError("which is not a string")
return
}
err = errors.New("")
if c.String() == e.String() {
err = nil
}
return
}
func checkAgainstArray(e reflect.Value, c reflect.Value) (err error) {
// Create a description of e's type, e.g. "[2]int".
typeStr := fmt.Sprintf("%v", e.Type())
// Make sure c is the correct type.
if c.Type() != e.Type() {
err = NewFatalError(fmt.Sprintf("which is not %s", typeStr))
return
}
// Check for equality.
if e.Interface() != c.Interface() {
err = errors.New("")
return
}
return
}
func checkAgainstUnsafePointer(e reflect.Value, c reflect.Value) (err error) {
// Make sure c is a pointer.
if c.Kind() != reflect.UnsafePointer {
err = NewFatalError("which is not a unsafe.Pointer")
return
}
err = errors.New("")
if c.Pointer() == e.Pointer() {
err = nil
}
return
}
func checkForNil(c reflect.Value) (err error) {
err = errors.New("")
// Make sure it is legal to call IsNil.
switch c.Kind() {
case reflect.Invalid:
case reflect.Chan:
case reflect.Func:
case reflect.Interface:
case reflect.Map:
case reflect.Ptr:
case reflect.Slice:
default:
err = NewFatalError("which cannot be compared to nil")
return
}
// Ask whether the value is nil. Handle a nil literal (kind Invalid)
// specially, since it's not legal to call IsNil there.
if c.Kind() == reflect.Invalid || c.IsNil() {
err = nil
}
return
}
////////////////////////////////////////////////////////////////////////
// Public implementation
////////////////////////////////////////////////////////////////////////
func (m *equalsMatcher) Matches(candidate interface{}) error {
e := m.expectedValue
c := reflect.ValueOf(candidate)
ek := e.Kind()
switch {
case ek == reflect.Bool:
return checkAgainstBool(e.Bool(), c)
case isSignedInteger(e):
return checkAgainstInt64(e.Int(), c)
case isUnsignedInteger(e):
return checkAgainstUint64(e.Uint(), c)
case ek == reflect.Float32:
return checkAgainstFloat32(float32(e.Float()), c)
case ek == reflect.Float64:
return checkAgainstFloat64(e.Float(), c)
case ek == reflect.Complex64:
return checkAgainstComplex64(complex64(e.Complex()), c)
case ek == reflect.Complex128:
return checkAgainstComplex128(complex128(e.Complex()), c)
case ek == reflect.Chan:
return checkAgainstChan(e, c)
case ek == reflect.Func:
return checkAgainstFunc(e, c)
case ek == reflect.Map:
return checkAgainstMap(e, c)
case ek == reflect.Ptr:
return checkAgainstPtr(e, c)
case ek == reflect.Slice:
return checkAgainstSlice(e, c)
case ek == reflect.String:
return checkAgainstString(e, c)
case ek == reflect.Array:
return checkAgainstArray(e, c)
case ek == reflect.UnsafePointer:
return checkAgainstUnsafePointer(e, c)
case ek == reflect.Invalid:
return checkForNil(c)
}
panic(fmt.Sprintf("equalsMatcher.Matches: unexpected kind: %v", ek))
}
func (m *equalsMatcher) Description() string {
// Special case: handle nil.
if !m.expectedValue.IsValid() {
return "is nil"
}
return fmt.Sprintf("%v", m.expectedValue.Interface())
}

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// Copyright 2011 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
// Error returns a matcher that matches non-nil values implementing the
// built-in error interface for whom the return value of Error() matches the
// supplied matcher.
//
// For example:
//
// err := errors.New("taco burrito")
//
// Error(Equals("taco burrito")) // matches err
// Error(HasSubstr("taco")) // matches err
// Error(HasSubstr("enchilada")) // doesn't match err
//
func Error(m Matcher) Matcher {
return &errorMatcher{m}
}
type errorMatcher struct {
wrappedMatcher Matcher
}
func (m *errorMatcher) Description() string {
return "error " + m.wrappedMatcher.Description()
}
func (m *errorMatcher) Matches(c interface{}) error {
// Make sure that c is an error.
e, ok := c.(error)
if !ok {
return NewFatalError("which is not an error")
}
// Pass on the error text to the wrapped matcher.
return m.wrappedMatcher.Matches(e.Error())
}

39
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// Copyright 2011 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
import (
"fmt"
"reflect"
)
// GreaterOrEqual returns a matcher that matches integer, floating point, or
// strings values v such that v >= x. Comparison is not defined between numeric
// and string types, but is defined between all integer and floating point
// types.
//
// x must itself be an integer, floating point, or string type; otherwise,
// GreaterOrEqual will panic.
func GreaterOrEqual(x interface{}) Matcher {
desc := fmt.Sprintf("greater than or equal to %v", x)
// Special case: make it clear that strings are strings.
if reflect.TypeOf(x).Kind() == reflect.String {
desc = fmt.Sprintf("greater than or equal to \"%s\"", x)
}
return transformDescription(Not(LessThan(x)), desc)
}

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// Copyright 2011 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
import (
"fmt"
"reflect"
)
// GreaterThan returns a matcher that matches integer, floating point, or
// strings values v such that v > x. Comparison is not defined between numeric
// and string types, but is defined between all integer and floating point
// types.
//
// x must itself be an integer, floating point, or string type; otherwise,
// GreaterThan will panic.
func GreaterThan(x interface{}) Matcher {
desc := fmt.Sprintf("greater than %v", x)
// Special case: make it clear that strings are strings.
if reflect.TypeOf(x).Kind() == reflect.String {
desc = fmt.Sprintf("greater than \"%s\"", x)
}
return transformDescription(Not(LessOrEqual(x)), desc)
}

37
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// Copyright 2015 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
import (
"fmt"
"reflect"
)
// HasSameTypeAs returns a matcher that matches values with exactly the same
// type as the supplied prototype.
func HasSameTypeAs(p interface{}) Matcher {
expected := reflect.TypeOf(p)
pred := func(c interface{}) error {
actual := reflect.TypeOf(c)
if actual != expected {
return fmt.Errorf("which has type %v", actual)
}
return nil
}
return NewMatcher(pred, fmt.Sprintf("has type %v", expected))
}

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vendor/github.com/smartystreets/assertions/internal/oglematchers/has_substr.go generated vendored Normal file
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// Copyright 2011 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
import (
"errors"
"fmt"
"reflect"
"strings"
)
// HasSubstr returns a matcher that matches strings containing s as a
// substring.
func HasSubstr(s string) Matcher {
return NewMatcher(
func(c interface{}) error { return hasSubstr(s, c) },
fmt.Sprintf("has substring \"%s\"", s))
}
func hasSubstr(needle string, c interface{}) error {
v := reflect.ValueOf(c)
if v.Kind() != reflect.String {
return NewFatalError("which is not a string")
}
// Perform the substring search.
haystack := v.String()
if strings.Contains(haystack, needle) {
return nil
}
return errors.New("")
}

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// Copyright 2012 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
import (
"errors"
"fmt"
"reflect"
)
// Is the type comparable according to the definition here?
//
// http://weekly.golang.org/doc/go_spec.html#Comparison_operators
//
func isComparable(t reflect.Type) bool {
switch t.Kind() {
case reflect.Array:
return isComparable(t.Elem())
case reflect.Struct:
for i := 0; i < t.NumField(); i++ {
if !isComparable(t.Field(i).Type) {
return false
}
}
return true
case reflect.Slice, reflect.Map, reflect.Func:
return false
}
return true
}
// Should the supplied type be allowed as an argument to IdenticalTo?
func isLegalForIdenticalTo(t reflect.Type) (bool, error) {
// Allow the zero type.
if t == nil {
return true, nil
}
// Reference types are always okay; we compare pointers.
switch t.Kind() {
case reflect.Slice, reflect.Map, reflect.Func, reflect.Chan:
return true, nil
}
// Reject other non-comparable types.
if !isComparable(t) {
return false, errors.New(fmt.Sprintf("%v is not comparable", t))
}
return true, nil
}
// IdenticalTo(x) returns a matcher that matches values v with type identical
// to x such that:
//
// 1. If v and x are of a reference type (slice, map, function, channel), then
// they are either both nil or are references to the same object.
//
// 2. Otherwise, if v and x are not of a reference type but have a valid type,
// then v == x.
//
// If v and x are both the invalid type (which results from the predeclared nil
// value, or from nil interface variables), then the matcher is satisfied.
//
// This function will panic if x is of a value type that is not comparable. For
// example, x cannot be an array of functions.
func IdenticalTo(x interface{}) Matcher {
t := reflect.TypeOf(x)
// Reject illegal arguments.
if ok, err := isLegalForIdenticalTo(t); !ok {
panic("IdenticalTo: " + err.Error())
}
return &identicalToMatcher{x}
}
type identicalToMatcher struct {
x interface{}
}
func (m *identicalToMatcher) Description() string {
t := reflect.TypeOf(m.x)
return fmt.Sprintf("identical to <%v> %v", t, m.x)
}
func (m *identicalToMatcher) Matches(c interface{}) error {
// Make sure the candidate's type is correct.
t := reflect.TypeOf(m.x)
if ct := reflect.TypeOf(c); t != ct {
return NewFatalError(fmt.Sprintf("which is of type %v", ct))
}
// Special case: two values of the invalid type are always identical.
if t == nil {
return nil
}
// Handle reference types.
switch t.Kind() {
case reflect.Slice, reflect.Map, reflect.Func, reflect.Chan:
xv := reflect.ValueOf(m.x)
cv := reflect.ValueOf(c)
if xv.Pointer() == cv.Pointer() {
return nil
}
return errors.New("which is not an identical reference")
}
// Are the values equal?
if m.x == c {
return nil
}
return errors.New("")
}

41
vendor/github.com/smartystreets/assertions/internal/oglematchers/less_or_equal.go generated vendored Normal file
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// Copyright 2011 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
import (
"fmt"
"reflect"
)
// LessOrEqual returns a matcher that matches integer, floating point, or
// strings values v such that v <= x. Comparison is not defined between numeric
// and string types, but is defined between all integer and floating point
// types.
//
// x must itself be an integer, floating point, or string type; otherwise,
// LessOrEqual will panic.
func LessOrEqual(x interface{}) Matcher {
desc := fmt.Sprintf("less than or equal to %v", x)
// Special case: make it clear that strings are strings.
if reflect.TypeOf(x).Kind() == reflect.String {
desc = fmt.Sprintf("less than or equal to \"%s\"", x)
}
// Put LessThan last so that its error messages will be used in the event of
// failure.
return transformDescription(AnyOf(Equals(x), LessThan(x)), desc)
}

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// Copyright 2011 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
import (
"errors"
"fmt"
"math"
"reflect"
)
// LessThan returns a matcher that matches integer, floating point, or strings
// values v such that v < x. Comparison is not defined between numeric and
// string types, but is defined between all integer and floating point types.
//
// x must itself be an integer, floating point, or string type; otherwise,
// LessThan will panic.
func LessThan(x interface{}) Matcher {
v := reflect.ValueOf(x)
kind := v.Kind()
switch {
case isInteger(v):
case isFloat(v):
case kind == reflect.String:
default:
panic(fmt.Sprintf("LessThan: unexpected kind %v", kind))
}
return &lessThanMatcher{v}
}
type lessThanMatcher struct {
limit reflect.Value
}
func (m *lessThanMatcher) Description() string {
// Special case: make it clear that strings are strings.
if m.limit.Kind() == reflect.String {
return fmt.Sprintf("less than \"%s\"", m.limit.String())
}
return fmt.Sprintf("less than %v", m.limit.Interface())
}
func compareIntegers(v1, v2 reflect.Value) (err error) {
err = errors.New("")
switch {
case isSignedInteger(v1) && isSignedInteger(v2):
if v1.Int() < v2.Int() {
err = nil
}
return
case isSignedInteger(v1) && isUnsignedInteger(v2):
if v1.Int() < 0 || uint64(v1.Int()) < v2.Uint() {
err = nil
}
return
case isUnsignedInteger(v1) && isSignedInteger(v2):
if v1.Uint() <= math.MaxInt64 && int64(v1.Uint()) < v2.Int() {
err = nil
}
return
case isUnsignedInteger(v1) && isUnsignedInteger(v2):
if v1.Uint() < v2.Uint() {
err = nil
}
return
}
panic(fmt.Sprintf("compareIntegers: %v %v", v1, v2))
}
func getFloat(v reflect.Value) float64 {
switch {
case isSignedInteger(v):
return float64(v.Int())
case isUnsignedInteger(v):
return float64(v.Uint())
case isFloat(v):
return v.Float()
}
panic(fmt.Sprintf("getFloat: %v", v))
}
func (m *lessThanMatcher) Matches(c interface{}) (err error) {
v1 := reflect.ValueOf(c)
v2 := m.limit
err = errors.New("")
// Handle strings as a special case.
if v1.Kind() == reflect.String && v2.Kind() == reflect.String {
if v1.String() < v2.String() {
err = nil
}
return
}
// If we get here, we require that we are dealing with integers or floats.
v1Legal := isInteger(v1) || isFloat(v1)
v2Legal := isInteger(v2) || isFloat(v2)
if !v1Legal || !v2Legal {
err = NewFatalError("which is not comparable")
return
}
// Handle the various comparison cases.
switch {
// Both integers
case isInteger(v1) && isInteger(v2):
return compareIntegers(v1, v2)
// At least one float32
case v1.Kind() == reflect.Float32 || v2.Kind() == reflect.Float32:
if float32(getFloat(v1)) < float32(getFloat(v2)) {
err = nil
}
return
// At least one float64
case v1.Kind() == reflect.Float64 || v2.Kind() == reflect.Float64:
if getFloat(v1) < getFloat(v2) {
err = nil
}
return
}
// We shouldn't get here.
panic(fmt.Sprintf("lessThanMatcher.Matches: Shouldn't get here: %v %v", v1, v2))
}

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// Copyright 2011 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package oglematchers provides a set of matchers useful in a testing or
// mocking framework. These matchers are inspired by and mostly compatible with
// Google Test for C++ and Google JS Test.
//
// This package is used by github.com/smartystreets/assertions/internal/ogletest and
// github.com/smartystreets/assertions/internal/oglemock, which may be more directly useful if you're not
// writing your own testing package or defining your own matchers.
package oglematchers
// A Matcher is some predicate implicitly defining a set of values that it
// matches. For example, GreaterThan(17) matches all numeric values greater
// than 17, and HasSubstr("taco") matches all strings with the substring
// "taco".
//
// Matchers are typically exposed to tests via constructor functions like
// HasSubstr. In order to implement such a function you can either define your
// own matcher type or use NewMatcher.
type Matcher interface {
// Check whether the supplied value belongs to the the set defined by the
// matcher. Return a non-nil error if and only if it does not.
//
// The error describes why the value doesn't match. The error text is a
// relative clause that is suitable for being placed after the value. For
// example, a predicate that matches strings with a particular substring may,
// when presented with a numerical value, return the following error text:
//
// "which is not a string"
//
// Then the failure message may look like:
//
// Expected: has substring "taco"
// Actual: 17, which is not a string
//
// If the error is self-apparent based on the description of the matcher, the
// error text may be empty (but the error still non-nil). For example:
//
// Expected: 17
// Actual: 19
//
// If you are implementing a new matcher, see also the documentation on
// FatalError.
Matches(candidate interface{}) error
// Description returns a string describing the property that values matching
// this matcher have, as a verb phrase where the subject is the value. For
// example, "is greather than 17" or "has substring "taco"".
Description() string
}
// FatalError is an implementation of the error interface that may be returned
// from matchers, indicating the error should be propagated. Returning a
// *FatalError indicates that the matcher doesn't process values of the
// supplied type, or otherwise doesn't know how to handle the value.
//
// For example, if GreaterThan(17) returned false for the value "taco" without
// a fatal error, then Not(GreaterThan(17)) would return true. This is
// technically correct, but is surprising and may mask failures where the wrong
// sort of matcher is accidentally used. Instead, GreaterThan(17) can return a
// fatal error, which will be propagated by Not().
type FatalError struct {
errorText string
}
// NewFatalError creates a FatalError struct with the supplied error text.
func NewFatalError(s string) *FatalError {
return &FatalError{s}
}
func (e *FatalError) Error() string {
return e.errorText
}

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// Copyright 2011 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
import (
"errors"
"fmt"
"reflect"
"regexp"
)
// MatchesRegexp returns a matcher that matches strings and byte slices whose
// contents match the supplied regular expression. The semantics are those of
// regexp.Match. In particular, that means the match is not implicitly anchored
// to the ends of the string: MatchesRegexp("bar") will match "foo bar baz".
func MatchesRegexp(pattern string) Matcher {
re, err := regexp.Compile(pattern)
if err != nil {
panic("MatchesRegexp: " + err.Error())
}
return &matchesRegexpMatcher{re}
}
type matchesRegexpMatcher struct {
re *regexp.Regexp
}
func (m *matchesRegexpMatcher) Description() string {
return fmt.Sprintf("matches regexp \"%s\"", m.re.String())
}
func (m *matchesRegexpMatcher) Matches(c interface{}) (err error) {
v := reflect.ValueOf(c)
isString := v.Kind() == reflect.String
isByteSlice := v.Kind() == reflect.Slice && v.Elem().Kind() == reflect.Uint8
err = errors.New("")
switch {
case isString:
if m.re.MatchString(v.String()) {
err = nil
}
case isByteSlice:
if m.re.Match(v.Bytes()) {
err = nil
}
default:
err = NewFatalError("which is not a string or []byte")
}
return
}

43
vendor/github.com/smartystreets/assertions/internal/oglematchers/new_matcher.go generated vendored Normal file
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// Copyright 2015 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
// Create a matcher with the given description and predicate function, which
// will be invoked to handle calls to Matchers.
//
// Using this constructor may be a convenience over defining your own type that
// implements Matcher if you do not need any logic in your Description method.
func NewMatcher(
predicate func(interface{}) error,
description string) Matcher {
return &predicateMatcher{
predicate: predicate,
description: description,
}
}
type predicateMatcher struct {
predicate func(interface{}) error
description string
}
func (pm *predicateMatcher) Matches(c interface{}) error {
return pm.predicate(c)
}
func (pm *predicateMatcher) Description() string {
return pm.description
}

53
vendor/github.com/smartystreets/assertions/internal/oglematchers/not.go generated vendored Normal file
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// Copyright 2011 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
import (
"errors"
"fmt"
)
// Not returns a matcher that inverts the set of values matched by the wrapped
// matcher. It does not transform the result for values for which the wrapped
// matcher returns a fatal error.
func Not(m Matcher) Matcher {
return &notMatcher{m}
}
type notMatcher struct {
wrapped Matcher
}
func (m *notMatcher) Matches(c interface{}) (err error) {
err = m.wrapped.Matches(c)
// Did the wrapped matcher say yes?
if err == nil {
return errors.New("")
}
// Did the wrapped matcher return a fatal error?
if _, isFatal := err.(*FatalError); isFatal {
return err
}
// The wrapped matcher returned a non-fatal error.
return nil
}
func (m *notMatcher) Description() string {
return fmt.Sprintf("not(%s)", m.wrapped.Description())
}

74
vendor/github.com/smartystreets/assertions/internal/oglematchers/panics.go generated vendored Normal file
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// Copyright 2011 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
import (
"errors"
"fmt"
"reflect"
)
// Panics matches zero-arg functions which, when invoked, panic with an error
// that matches the supplied matcher.
//
// NOTE(jacobsa): This matcher cannot detect the case where the function panics
// using panic(nil), by design of the language. See here for more info:
//
// http://goo.gl/9aIQL
//
func Panics(m Matcher) Matcher {
return &panicsMatcher{m}
}
type panicsMatcher struct {
wrappedMatcher Matcher
}
func (m *panicsMatcher) Description() string {
return "panics with: " + m.wrappedMatcher.Description()
}
func (m *panicsMatcher) Matches(c interface{}) (err error) {
// Make sure c is a zero-arg function.
v := reflect.ValueOf(c)
if v.Kind() != reflect.Func || v.Type().NumIn() != 0 {
err = NewFatalError("which is not a zero-arg function")
return
}
// Call the function and check its panic error.
defer func() {
if e := recover(); e != nil {
err = m.wrappedMatcher.Matches(e)
// Set a clearer error message if the matcher said no.
if err != nil {
wrappedClause := ""
if err.Error() != "" {
wrappedClause = ", " + err.Error()
}
err = errors.New(fmt.Sprintf("which panicked with: %v%s", e, wrappedClause))
}
}
}()
v.Call([]reflect.Value{})
// If we get here, the function didn't panic.
err = errors.New("which didn't panic")
return
}

65
vendor/github.com/smartystreets/assertions/internal/oglematchers/pointee.go generated vendored Normal file
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// Copyright 2012 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
import (
"errors"
"fmt"
"reflect"
)
// Return a matcher that matches non-nil pointers whose pointee matches the
// wrapped matcher.
func Pointee(m Matcher) Matcher {
return &pointeeMatcher{m}
}
type pointeeMatcher struct {
wrapped Matcher
}
func (m *pointeeMatcher) Matches(c interface{}) (err error) {
// Make sure the candidate is of the appropriate type.
cv := reflect.ValueOf(c)
if !cv.IsValid() || cv.Kind() != reflect.Ptr {
return NewFatalError("which is not a pointer")
}
// Make sure the candidate is non-nil.
if cv.IsNil() {
return NewFatalError("")
}
// Defer to the wrapped matcher. Fix up empty errors so that failure messages
// are more helpful than just printing a pointer for "Actual".
pointee := cv.Elem().Interface()
err = m.wrapped.Matches(pointee)
if err != nil && err.Error() == "" {
s := fmt.Sprintf("whose pointee is %v", pointee)
if _, ok := err.(*FatalError); ok {
err = NewFatalError(s)
} else {
err = errors.New(s)
}
}
return err
}
func (m *pointeeMatcher) Description() string {
return fmt.Sprintf("pointee(%s)", m.wrapped.Description())
}

36
vendor/github.com/smartystreets/assertions/internal/oglematchers/transform_description.go generated vendored Normal file
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// Copyright 2011 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oglematchers
// transformDescription returns a matcher that is equivalent to the supplied
// one, except that it has the supplied description instead of the one attached
// to the existing matcher.
func transformDescription(m Matcher, newDesc string) Matcher {
return &transformDescriptionMatcher{newDesc, m}
}
type transformDescriptionMatcher struct {
desc string
wrappedMatcher Matcher
}
func (m *transformDescriptionMatcher) Description() string {
return m.desc
}
func (m *transformDescriptionMatcher) Matches(c interface{}) error {
return m.wrappedMatcher.Matches(c)
}

94
vendor/github.com/smartystreets/assertions/messages.go generated vendored Normal file
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package assertions
const ( // equality
shouldHaveBeenEqual = "Expected: '%v'\nActual: '%v'\n(Should be equal)"
shouldNotHaveBeenEqual = "Expected '%v'\nto NOT equal '%v'\n(but it did)!"
shouldHaveBeenEqualTypeMismatch = "Expected: '%v' (%T)\nActual: '%v' (%T)\n(Should be equal, type mismatch)"
shouldHaveBeenAlmostEqual = "Expected '%v' to almost equal '%v' (but it didn't)!"
shouldHaveNotBeenAlmostEqual = "Expected '%v' to NOT almost equal '%v' (but it did)!"
shouldHaveResembled = "Expected: '%#v'\nActual: '%#v'\n(Should resemble)!"
shouldHaveResembledTypeMismatch = "Expected: '%#v' (%T)\nActual: '%#v' (%T)\n(Should resemble, type mismatch)"
shouldNotHaveResembled = "Expected '%#v'\nto NOT resemble '%#v'\n(but it did)!"
shouldBePointers = "Both arguments should be pointers "
shouldHaveBeenNonNilPointer = shouldBePointers + "(the %s was %s)!"
shouldHavePointedTo = "Expected '%+v' (address: '%v') and '%+v' (address: '%v') to be the same address (but their weren't)!"
shouldNotHavePointedTo = "Expected '%+v' and '%+v' to be different references (but they matched: '%v')!"
shouldHaveBeenNil = "Expected: nil\nActual: '%v'"
shouldNotHaveBeenNil = "Expected '%+v' to NOT be nil (but it was)!"
shouldHaveBeenTrue = "Expected: true\nActual: %v"
shouldHaveBeenFalse = "Expected: false\nActual: %v"
shouldHaveBeenZeroValue = "'%+v' should have been the zero value" //"Expected: (zero value)\nActual: %v"
)
const ( // quantity comparisons
shouldHaveBeenGreater = "Expected '%v' to be greater than '%v' (but it wasn't)!"
shouldHaveBeenGreaterOrEqual = "Expected '%v' to be greater than or equal to '%v' (but it wasn't)!"
shouldHaveBeenLess = "Expected '%v' to be less than '%v' (but it wasn't)!"
shouldHaveBeenLessOrEqual = "Expected '%v' to be less than or equal to '%v' (but it wasn't)!"
shouldHaveBeenBetween = "Expected '%v' to be between '%v' and '%v' (but it wasn't)!"
shouldNotHaveBeenBetween = "Expected '%v' NOT to be between '%v' and '%v' (but it was)!"
shouldHaveDifferentUpperAndLower = "The lower and upper bounds must be different values (they were both '%v')."
shouldHaveBeenBetweenOrEqual = "Expected '%v' to be between '%v' and '%v' or equal to one of them (but it wasn't)!"
shouldNotHaveBeenBetweenOrEqual = "Expected '%v' NOT to be between '%v' and '%v' or equal to one of them (but it was)!"
)
const ( // collections
shouldHaveContained = "Expected the container (%v) to contain: '%v' (but it didn't)!"
shouldNotHaveContained = "Expected the container (%v) NOT to contain: '%v' (but it did)!"
shouldHaveContainedKey = "Expected the %v to contain the key: %v (but it didn't)!"
shouldNotHaveContainedKey = "Expected the %v NOT to contain the key: %v (but it did)!"
shouldHaveBeenIn = "Expected '%v' to be in the container (%v), but it wasn't!"
shouldNotHaveBeenIn = "Expected '%v' NOT to be in the container (%v), but it was!"
shouldHaveBeenAValidCollection = "You must provide a valid container (was %v)!"
shouldHaveBeenAValidMap = "You must provide a valid map type (was %v)!"
shouldHaveBeenEmpty = "Expected %+v to be empty (but it wasn't)!"
shouldNotHaveBeenEmpty = "Expected %+v to NOT be empty (but it was)!"
shouldHaveBeenAValidInteger = "You must provide a valid integer (was %v)!"
shouldHaveBeenAValidLength = "You must provide a valid positive integer (was %v)!"
shouldHaveHadLength = "Expected %+v to have length equal to '%v', but it wasn't!"
)
const ( // strings
shouldHaveStartedWith = "Expected '%v'\nto start with '%v'\n(but it didn't)!"
shouldNotHaveStartedWith = "Expected '%v'\nNOT to start with '%v'\n(but it did)!"
shouldHaveEndedWith = "Expected '%v'\nto end with '%v'\n(but it didn't)!"
shouldNotHaveEndedWith = "Expected '%v'\nNOT to end with '%v'\n(but it did)!"
shouldAllBeStrings = "All arguments to this assertion must be strings (you provided: %v)."
shouldBothBeStrings = "Both arguments to this assertion must be strings (you provided %v and %v)."
shouldBeString = "The argument to this assertion must be a string (you provided %v)."
shouldHaveContainedSubstring = "Expected '%s' to contain substring '%s' (but it didn't)!"
shouldNotHaveContainedSubstring = "Expected '%s' NOT to contain substring '%s' (but it did)!"
shouldHaveBeenBlank = "Expected '%s' to be blank (but it wasn't)!"
shouldNotHaveBeenBlank = "Expected value to NOT be blank (but it was)!"
)
const ( // panics
shouldUseVoidNiladicFunction = "You must provide a void, niladic function as the first argument!"
shouldHavePanickedWith = "Expected func() to panic with '%v' (but it panicked with '%v')!"
shouldHavePanicked = "Expected func() to panic (but it didn't)!"
shouldNotHavePanicked = "Expected func() NOT to panic (error: '%+v')!"
shouldNotHavePanickedWith = "Expected func() NOT to panic with '%v' (but it did)!"
)
const ( // type checking
shouldHaveBeenA = "Expected '%v' to be: '%v' (but was: '%v')!"
shouldNotHaveBeenA = "Expected '%v' to NOT be: '%v' (but it was)!"
shouldHaveImplemented = "Expected: '%v interface support'\nActual: '%v' does not implement the interface!"
shouldNotHaveImplemented = "Expected '%v'\nto NOT implement '%v'\n(but it did)!"
shouldCompareWithInterfacePointer = "The expected value must be a pointer to an interface type (eg. *fmt.Stringer)"
shouldNotBeNilActual = "The actual value was 'nil' and should be a value or a pointer to a value!"
)
const ( // time comparisons
shouldUseTimes = "You must provide time instances as arguments to this assertion."
shouldUseTimeSlice = "You must provide a slice of time instances as the first argument to this assertion."
shouldUseDurationAndTime = "You must provide a duration and a time as arguments to this assertion."
shouldHaveHappenedBefore = "Expected '%v' to happen before '%v' (it happened '%v' after)!"
shouldHaveHappenedAfter = "Expected '%v' to happen after '%v' (it happened '%v' before)!"
shouldHaveHappenedBetween = "Expected '%v' to happen between '%v' and '%v' (it happened '%v' outside threshold)!"
shouldNotHaveHappenedOnOrBetween = "Expected '%v' to NOT happen on or between '%v' and '%v' (but it did)!"
// format params: incorrect-index, previous-index, previous-time, incorrect-index, incorrect-time
shouldHaveBeenChronological = "The 'Time' at index [%d] should have happened after the previous one (but it didn't!):\n [%d]: %s\n [%d]: %s (see, it happened before!)"
)

115
vendor/github.com/smartystreets/assertions/panic.go generated vendored Normal file
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package assertions
import "fmt"
// ShouldPanic receives a void, niladic function and expects to recover a panic.
func ShouldPanic(actual interface{}, expected ...interface{}) (message string) {
if fail := need(0, expected); fail != success {
return fail
}
action, _ := actual.(func())
if action == nil {
message = shouldUseVoidNiladicFunction
return
}
defer func() {
recovered := recover()
if recovered == nil {
message = shouldHavePanicked
} else {
message = success
}
}()
action()
return
}
// ShouldNotPanic receives a void, niladic function and expects to execute the function without any panic.
func ShouldNotPanic(actual interface{}, expected ...interface{}) (message string) {
if fail := need(0, expected); fail != success {
return fail
}
action, _ := actual.(func())
if action == nil {
message = shouldUseVoidNiladicFunction
return
}
defer func() {
recovered := recover()
if recovered != nil {
message = fmt.Sprintf(shouldNotHavePanicked, recovered)
} else {
message = success
}
}()
action()
return
}
// ShouldPanicWith receives a void, niladic function and expects to recover a panic with the second argument as the content.
func ShouldPanicWith(actual interface{}, expected ...interface{}) (message string) {
if fail := need(1, expected); fail != success {
return fail
}
action, _ := actual.(func())
if action == nil {
message = shouldUseVoidNiladicFunction
return
}
defer func() {
recovered := recover()
if recovered == nil {
message = shouldHavePanicked
} else {
if equal := ShouldEqual(recovered, expected[0]); equal != success {
message = serializer.serialize(expected[0], recovered, fmt.Sprintf(shouldHavePanickedWith, expected[0], recovered))
} else {
message = success
}
}
}()
action()
return
}
// ShouldNotPanicWith receives a void, niladic function and expects to recover a panic whose content differs from the second argument.
func ShouldNotPanicWith(actual interface{}, expected ...interface{}) (message string) {
if fail := need(1, expected); fail != success {
return fail
}
action, _ := actual.(func())
if action == nil {
message = shouldUseVoidNiladicFunction
return
}
defer func() {
recovered := recover()
if recovered == nil {
message = success
} else {
if equal := ShouldEqual(recovered, expected[0]); equal == success {
message = fmt.Sprintf(shouldNotHavePanickedWith, expected[0])
} else {
message = success
}
}
}()
action()
return
}

141
vendor/github.com/smartystreets/assertions/quantity.go generated vendored Normal file
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package assertions
import (
"fmt"
"github.com/smartystreets/assertions/internal/oglematchers"
)
// ShouldBeGreaterThan receives exactly two parameters and ensures that the first is greater than the second.
func ShouldBeGreaterThan(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
if matchError := oglematchers.GreaterThan(expected[0]).Matches(actual); matchError != nil {
return fmt.Sprintf(shouldHaveBeenGreater, actual, expected[0])
}
return success
}
// ShouldBeGreaterThanOrEqualTo receives exactly two parameters and ensures that the first is greater than or equal to the second.
func ShouldBeGreaterThanOrEqualTo(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
} else if matchError := oglematchers.GreaterOrEqual(expected[0]).Matches(actual); matchError != nil {
return fmt.Sprintf(shouldHaveBeenGreaterOrEqual, actual, expected[0])
}
return success
}
// ShouldBeLessThan receives exactly two parameters and ensures that the first is less than the second.
func ShouldBeLessThan(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
} else if matchError := oglematchers.LessThan(expected[0]).Matches(actual); matchError != nil {
return fmt.Sprintf(shouldHaveBeenLess, actual, expected[0])
}
return success
}
// ShouldBeLessThan receives exactly two parameters and ensures that the first is less than or equal to the second.
func ShouldBeLessThanOrEqualTo(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
} else if matchError := oglematchers.LessOrEqual(expected[0]).Matches(actual); matchError != nil {
return fmt.Sprintf(shouldHaveBeenLess, actual, expected[0])
}
return success
}
// ShouldBeBetween receives exactly three parameters: an actual value, a lower bound, and an upper bound.
// It ensures that the actual value is between both bounds (but not equal to either of them).
func ShouldBeBetween(actual interface{}, expected ...interface{}) string {
if fail := need(2, expected); fail != success {
return fail
}
lower, upper, fail := deriveBounds(expected)
if fail != success {
return fail
} else if !isBetween(actual, lower, upper) {
return fmt.Sprintf(shouldHaveBeenBetween, actual, lower, upper)
}
return success
}
// ShouldNotBeBetween receives exactly three parameters: an actual value, a lower bound, and an upper bound.
// It ensures that the actual value is NOT between both bounds.
func ShouldNotBeBetween(actual interface{}, expected ...interface{}) string {
if fail := need(2, expected); fail != success {
return fail
}
lower, upper, fail := deriveBounds(expected)
if fail != success {
return fail
} else if isBetween(actual, lower, upper) {
return fmt.Sprintf(shouldNotHaveBeenBetween, actual, lower, upper)
}
return success
}
func deriveBounds(values []interface{}) (lower interface{}, upper interface{}, fail string) {
lower = values[0]
upper = values[1]
if ShouldNotEqual(lower, upper) != success {
return nil, nil, fmt.Sprintf(shouldHaveDifferentUpperAndLower, lower)
} else if ShouldBeLessThan(lower, upper) != success {
lower, upper = upper, lower
}
return lower, upper, success
}
func isBetween(value, lower, upper interface{}) bool {
if ShouldBeGreaterThan(value, lower) != success {
return false
} else if ShouldBeLessThan(value, upper) != success {
return false
}
return true
}
// ShouldBeBetweenOrEqual receives exactly three parameters: an actual value, a lower bound, and an upper bound.
// It ensures that the actual value is between both bounds or equal to one of them.
func ShouldBeBetweenOrEqual(actual interface{}, expected ...interface{}) string {
if fail := need(2, expected); fail != success {
return fail
}
lower, upper, fail := deriveBounds(expected)
if fail != success {
return fail
} else if !isBetweenOrEqual(actual, lower, upper) {
return fmt.Sprintf(shouldHaveBeenBetweenOrEqual, actual, lower, upper)
}
return success
}
// ShouldNotBeBetweenOrEqual receives exactly three parameters: an actual value, a lower bound, and an upper bound.
// It ensures that the actual value is nopt between the bounds nor equal to either of them.
func ShouldNotBeBetweenOrEqual(actual interface{}, expected ...interface{}) string {
if fail := need(2, expected); fail != success {
return fail
}
lower, upper, fail := deriveBounds(expected)
if fail != success {
return fail
} else if isBetweenOrEqual(actual, lower, upper) {
return fmt.Sprintf(shouldNotHaveBeenBetweenOrEqual, actual, lower, upper)
}
return success
}
func isBetweenOrEqual(value, lower, upper interface{}) bool {
if ShouldBeGreaterThanOrEqualTo(value, lower) != success {
return false
} else if ShouldBeLessThanOrEqualTo(value, upper) != success {
return false
}
return true
}

59
vendor/github.com/smartystreets/assertions/serializer.go generated vendored Normal file
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package assertions
import (
"encoding/json"
"fmt"
"github.com/smartystreets/goconvey/convey/reporting"
)
type Serializer interface {
serialize(expected, actual interface{}, message string) string
serializeDetailed(expected, actual interface{}, message string) string
}
type failureSerializer struct{}
func (self *failureSerializer) serializeDetailed(expected, actual interface{}, message string) string {
view := self.format(expected, actual, message, "%#v")
serialized, err := json.Marshal(view)
if err != nil {
return message
}
return string(serialized)
}
func (self *failureSerializer) serialize(expected, actual interface{}, message string) string {
view := self.format(expected, actual, message, "%+v")
serialized, err := json.Marshal(view)
if err != nil {
return message
}
return string(serialized)
}
func (self *failureSerializer) format(expected, actual interface{}, message string, format string) reporting.FailureView {
return reporting.FailureView{
Message: message,
Expected: fmt.Sprintf(format, expected),
Actual: fmt.Sprintf(format, actual),
}
}
func newSerializer() *failureSerializer {
return &failureSerializer{}
}
///////////////////////////////////////////////////////
// noopSerializer just gives back the original message. This is useful when we are using
// the assertions from a context other than the web UI, that requires the JSON structure
// provided by the failureSerializer.
type noopSerializer struct{}
func (self *noopSerializer) serialize(expected, actual interface{}, message string) string {
return message
}
func (self *noopSerializer) serializeDetailed(expected, actual interface{}, message string) string {
return message
}

227
vendor/github.com/smartystreets/assertions/strings.go generated vendored Normal file
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@ -0,0 +1,227 @@
package assertions
import (
"fmt"
"reflect"
"strings"
)
// ShouldStartWith receives exactly 2 string parameters and ensures that the first starts with the second.
func ShouldStartWith(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
value, valueIsString := actual.(string)
prefix, prefixIsString := expected[0].(string)
if !valueIsString || !prefixIsString {
return fmt.Sprintf(shouldBothBeStrings, reflect.TypeOf(actual), reflect.TypeOf(expected[0]))
}
return shouldStartWith(value, prefix)
}
func shouldStartWith(value, prefix string) string {
if !strings.HasPrefix(value, prefix) {
shortval := value
if len(shortval) > len(prefix) {
shortval = shortval[:len(prefix)] + "..."
}
return serializer.serialize(prefix, shortval, fmt.Sprintf(shouldHaveStartedWith, value, prefix))
}
return success
}
// ShouldNotStartWith receives exactly 2 string parameters and ensures that the first does not start with the second.
func ShouldNotStartWith(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
value, valueIsString := actual.(string)
prefix, prefixIsString := expected[0].(string)
if !valueIsString || !prefixIsString {
return fmt.Sprintf(shouldBothBeStrings, reflect.TypeOf(actual), reflect.TypeOf(expected[0]))
}
return shouldNotStartWith(value, prefix)
}
func shouldNotStartWith(value, prefix string) string {
if strings.HasPrefix(value, prefix) {
if value == "" {
value = "<empty>"
}
if prefix == "" {
prefix = "<empty>"
}
return fmt.Sprintf(shouldNotHaveStartedWith, value, prefix)
}
return success
}
// ShouldEndWith receives exactly 2 string parameters and ensures that the first ends with the second.
func ShouldEndWith(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
value, valueIsString := actual.(string)
suffix, suffixIsString := expected[0].(string)
if !valueIsString || !suffixIsString {
return fmt.Sprintf(shouldBothBeStrings, reflect.TypeOf(actual), reflect.TypeOf(expected[0]))
}
return shouldEndWith(value, suffix)
}
func shouldEndWith(value, suffix string) string {
if !strings.HasSuffix(value, suffix) {
shortval := value
if len(shortval) > len(suffix) {
shortval = "..." + shortval[len(shortval)-len(suffix):]
}
return serializer.serialize(suffix, shortval, fmt.Sprintf(shouldHaveEndedWith, value, suffix))
}
return success
}
// ShouldEndWith receives exactly 2 string parameters and ensures that the first does not end with the second.
func ShouldNotEndWith(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
value, valueIsString := actual.(string)
suffix, suffixIsString := expected[0].(string)
if !valueIsString || !suffixIsString {
return fmt.Sprintf(shouldBothBeStrings, reflect.TypeOf(actual), reflect.TypeOf(expected[0]))
}
return shouldNotEndWith(value, suffix)
}
func shouldNotEndWith(value, suffix string) string {
if strings.HasSuffix(value, suffix) {
if value == "" {
value = "<empty>"
}
if suffix == "" {
suffix = "<empty>"
}
return fmt.Sprintf(shouldNotHaveEndedWith, value, suffix)
}
return success
}
// ShouldContainSubstring receives exactly 2 string parameters and ensures that the first contains the second as a substring.
func ShouldContainSubstring(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
long, longOk := actual.(string)
short, shortOk := expected[0].(string)
if !longOk || !shortOk {
return fmt.Sprintf(shouldBothBeStrings, reflect.TypeOf(actual), reflect.TypeOf(expected[0]))
}
if !strings.Contains(long, short) {
return serializer.serialize(expected[0], actual, fmt.Sprintf(shouldHaveContainedSubstring, long, short))
}
return success
}
// ShouldNotContainSubstring receives exactly 2 string parameters and ensures that the first does NOT contain the second as a substring.
func ShouldNotContainSubstring(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
long, longOk := actual.(string)
short, shortOk := expected[0].(string)
if !longOk || !shortOk {
return fmt.Sprintf(shouldBothBeStrings, reflect.TypeOf(actual), reflect.TypeOf(expected[0]))
}
if strings.Contains(long, short) {
return fmt.Sprintf(shouldNotHaveContainedSubstring, long, short)
}
return success
}
// ShouldBeBlank receives exactly 1 string parameter and ensures that it is equal to "".
func ShouldBeBlank(actual interface{}, expected ...interface{}) string {
if fail := need(0, expected); fail != success {
return fail
}
value, ok := actual.(string)
if !ok {
return fmt.Sprintf(shouldBeString, reflect.TypeOf(actual))
}
if value != "" {
return serializer.serialize("", value, fmt.Sprintf(shouldHaveBeenBlank, value))
}
return success
}
// ShouldNotBeBlank receives exactly 1 string parameter and ensures that it is equal to "".
func ShouldNotBeBlank(actual interface{}, expected ...interface{}) string {
if fail := need(0, expected); fail != success {
return fail
}
value, ok := actual.(string)
if !ok {
return fmt.Sprintf(shouldBeString, reflect.TypeOf(actual))
}
if value == "" {
return shouldNotHaveBeenBlank
}
return success
}
// ShouldEqualWithout receives exactly 3 string parameters and ensures that the first is equal to the second
// after removing all instances of the third from the first using strings.Replace(first, third, "", -1).
func ShouldEqualWithout(actual interface{}, expected ...interface{}) string {
if fail := need(2, expected); fail != success {
return fail
}
actualString, ok1 := actual.(string)
expectedString, ok2 := expected[0].(string)
replace, ok3 := expected[1].(string)
if !ok1 || !ok2 || !ok3 {
return fmt.Sprintf(shouldAllBeStrings, []reflect.Type{
reflect.TypeOf(actual),
reflect.TypeOf(expected[0]),
reflect.TypeOf(expected[1]),
})
}
replaced := strings.Replace(actualString, replace, "", -1)
if replaced == expectedString {
return ""
}
return fmt.Sprintf("Expected '%s' to equal '%s' but without any '%s' (but it didn't).", actualString, expectedString, replace)
}
// ShouldEqualTrimSpace receives exactly 2 string parameters and ensures that the first is equal to the second
// after removing all leading and trailing whitespace using strings.TrimSpace(first).
func ShouldEqualTrimSpace(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
actualString, valueIsString := actual.(string)
_, value2IsString := expected[0].(string)
if !valueIsString || !value2IsString {
return fmt.Sprintf(shouldBothBeStrings, reflect.TypeOf(actual), reflect.TypeOf(expected[0]))
}
actualString = strings.TrimSpace(actualString)
return ShouldEqual(actualString, expected[0])
}

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