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This commit is contained in:
MZI
2018-10-13 21:45:53 +08:00
parent bf5480b2df
commit db6c162b03
451 changed files with 139580 additions and 42578 deletions
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100
vendor/github.com/peterh/liner/README.md generated vendored
View File

@ -1,100 +0,0 @@
Liner
=====
Liner is a command line editor with history. It was inspired by linenoise;
everything Unix-like is a VT100 (or is trying very hard to be). If your
terminal is not pretending to be a VT100, change it. Liner also support
Windows.
Liner is released under the X11 license (which is similar to the new BSD
license).
Line Editing
------------
The following line editing commands are supported on platforms and terminals
that Liner supports:
Keystroke | Action
--------- | ------
Ctrl-A, Home | Move cursor to beginning of line
Ctrl-E, End | Move cursor to end of line
Ctrl-B, Left | Move cursor one character left
Ctrl-F, Right| Move cursor one character right
Ctrl-Left, Alt-B | Move cursor to previous word
Ctrl-Right, Alt-F | Move cursor to next word
Ctrl-D, Del | (if line is *not* empty) Delete character under cursor
Ctrl-D | (if line *is* empty) End of File - usually quits application
Ctrl-C | Reset input (create new empty prompt)
Ctrl-L | Clear screen (line is unmodified)
Ctrl-T | Transpose previous character with current character
Ctrl-H, BackSpace | Delete character before cursor
Ctrl-W | Delete word leading up to cursor
Ctrl-K | Delete from cursor to end of line
Ctrl-U | Delete from start of line to cursor
Ctrl-P, Up | Previous match from history
Ctrl-N, Down | Next match from history
Ctrl-R | Reverse Search history (Ctrl-S forward, Ctrl-G cancel)
Ctrl-Y | Paste from Yank buffer (Alt-Y to paste next yank instead)
Tab | Next completion
Shift-Tab | (after Tab) Previous completion
Getting started
-----------------
```go
package main
import (
"log"
"os"
"path/filepath"
"strings"
"github.com/peterh/liner"
)
var (
history_fn = filepath.Join(os.TempDir(), ".liner_example_history")
names = []string{"john", "james", "mary", "nancy"}
)
func main() {
line := liner.NewLiner()
defer line.Close()
line.SetCtrlCAborts(true)
line.SetCompleter(func(line string) (c []string) {
for _, n := range names {
if strings.HasPrefix(n, strings.ToLower(line)) {
c = append(c, n)
}
}
return
})
if f, err := os.Open(history_fn); err == nil {
line.ReadHistory(f)
f.Close()
}
if name, err := line.Prompt("What is your name? "); err == nil {
log.Print("Got: ", name)
line.AppendHistory(name)
} else if err == liner.ErrPromptAborted {
log.Print("Aborted")
} else {
log.Print("Error reading line: ", err)
}
if f, err := os.Create(history_fn); err != nil {
log.Print("Error writing history file: ", err)
} else {
line.WriteHistory(f)
f.Close()
}
}
```
For documentation, see http://godoc.org/github.com/peterh/liner

20
vendor/github.com/peterh/liner/common.go generated vendored
View File

@ -32,6 +32,7 @@ type commonState struct {
cursorRows int
maxRows int
shouldRestart ShouldRestart
needRefresh bool
}
// TabStyle is used to select how tab completions are displayed.
@ -58,7 +59,17 @@ var ErrPromptAborted = errors.New("prompt aborted")
// platform is normally supported, but stdout has been redirected
var ErrNotTerminalOutput = errors.New("standard output is not a terminal")
// Max elements to save on the killring
// ErrInvalidPrompt is returned from Prompt or PasswordPrompt if the
// prompt contains any unprintable runes (including substrings that could
// be colour codes on some platforms).
var ErrInvalidPrompt = errors.New("invalid prompt")
// ErrInternal is returned when liner experiences an error that it cannot
// handle. For example, if the number of colums becomes zero during an
// active call to Prompt
var ErrInternal = errors.New("liner: internal error")
// KillRingMax is the max number of elements to save on the killring.
const KillRingMax = 60
// HistoryLimit is the maximum number of entries saved in the scrollback history.
@ -133,6 +144,13 @@ func (s *State) AppendHistory(item string) {
}
}
// ClearHistory clears the scroollback history.
func (s *State) ClearHistory() {
s.historyMutex.Lock()
defer s.historyMutex.Unlock()
s.history = nil
}
// Returns the history lines starting with prefix
func (s *State) getHistoryByPrefix(prefix string) (ph []string) {
for _, h := range s.history {

19
vendor/github.com/peterh/liner/input.go generated vendored
View File

@ -31,11 +31,6 @@ type State struct {
// NewLiner initializes a new *State, and sets the terminal into raw mode. To
// restore the terminal to its previous state, call State.Close().
//
// Note if you are still using Go 1.0: NewLiner handles SIGWINCH, so it will
// leak a channel every time you call it. Therefore, it is recommened that you
// upgrade to a newer release of Go, or ensure that NewLiner is only called
// once.
func NewLiner() *State {
var s State
s.r = bufio.NewReader(os.Stdin)
@ -87,8 +82,12 @@ func (s *State) startPrompt() {
s.restartPrompt()
}
func (s *State) inputWaiting() bool {
return len(s.next) > 0
}
func (s *State) restartPrompt() {
next := make(chan nexter)
next := make(chan nexter, 200)
go func() {
for {
var n nexter
@ -114,7 +113,7 @@ func (s *State) nextPending(timeout <-chan time.Time) (rune, error) {
select {
case thing, ok := <-s.next:
if !ok {
return 0, errors.New("liner: internal error")
return 0, ErrInternal
}
if thing.err != nil {
return 0, thing.err
@ -126,8 +125,6 @@ func (s *State) nextPending(timeout <-chan time.Time) (rune, error) {
s.pending = s.pending[1:]
return rv, errTimedOut
}
// not reached
return 0, nil
}
func (s *State) readNext() (interface{}, error) {
@ -140,7 +137,7 @@ func (s *State) readNext() (interface{}, error) {
select {
case thing, ok := <-s.next:
if !ok {
return 0, errors.New("liner: internal error")
return 0, ErrInternal
}
if thing.err != nil {
return nil, thing.err
@ -349,7 +346,7 @@ func (s *State) readNext() (interface{}, error) {
// Close returns the terminal to its previous mode
func (s *State) Close() error {
stopSignal(s.winch)
signal.Stop(s.winch)
if !s.inputRedirected {
s.origMode.ApplyMode()
}

31
vendor/github.com/peterh/liner/input_windows.go generated vendored
View File

@ -10,13 +10,14 @@ import (
var (
kernel32 = syscall.NewLazyDLL("kernel32.dll")
procGetStdHandle = kernel32.NewProc("GetStdHandle")
procReadConsoleInput = kernel32.NewProc("ReadConsoleInputW")
procGetConsoleMode = kernel32.NewProc("GetConsoleMode")
procSetConsoleMode = kernel32.NewProc("SetConsoleMode")
procSetConsoleCursorPosition = kernel32.NewProc("SetConsoleCursorPosition")
procGetConsoleScreenBufferInfo = kernel32.NewProc("GetConsoleScreenBufferInfo")
procFillConsoleOutputCharacter = kernel32.NewProc("FillConsoleOutputCharacterW")
procGetStdHandle = kernel32.NewProc("GetStdHandle")
procReadConsoleInput = kernel32.NewProc("ReadConsoleInputW")
procGetNumberOfConsoleInputEvents = kernel32.NewProc("GetNumberOfConsoleInputEvents")
procGetConsoleMode = kernel32.NewProc("GetConsoleMode")
procSetConsoleMode = kernel32.NewProc("SetConsoleMode")
procSetConsoleCursorPosition = kernel32.NewProc("SetConsoleCursorPosition")
procGetConsoleScreenBufferInfo = kernel32.NewProc("GetConsoleScreenBufferInfo")
procFillConsoleOutputCharacter = kernel32.NewProc("FillConsoleOutputCharacterW")
)
// These names are from the Win32 api, so they use underscores (contrary to
@ -147,6 +148,21 @@ const (
modKeys = shiftPressed | leftAltPressed | rightAltPressed | leftCtrlPressed | rightCtrlPressed
)
// inputWaiting only returns true if the next call to readNext will return immediately.
func (s *State) inputWaiting() bool {
var num uint32
ok, _, _ := procGetNumberOfConsoleInputEvents.Call(uintptr(s.handle), uintptr(unsafe.Pointer(&num)))
if ok == 0 {
// call failed, so we cannot guarantee a non-blocking readNext
return false
}
// during a "paste" input events are always an odd number, and
// the last one results in a blocking readNext, so return false
// when num is 1 or 0.
return num > 1
}
func (s *State) readNext() (interface{}, error) {
if s.repeat > 0 {
s.repeat--
@ -263,7 +279,6 @@ func (s *State) readNext() (interface{}, error) {
}
return s.key, nil
}
return unknown, nil
}
// Close returns the terminal to its previous mode

192
vendor/github.com/peterh/liner/line.go generated vendored
View File

@ -3,10 +3,12 @@
package liner
import (
"bufio"
"container/ring"
"errors"
"fmt"
"io"
"os"
"strings"
"unicode"
"unicode/utf8"
@ -90,11 +92,15 @@ const (
)
func (s *State) refresh(prompt []rune, buf []rune, pos int) error {
if s.columns == 0 {
return ErrInternal
}
s.needRefresh = false
if s.multiLineMode {
return s.refreshMultiLine(prompt, buf, pos)
} else {
return s.refreshSingleLine(prompt, buf, pos)
}
return s.refreshSingleLine(prompt, buf, pos)
}
func (s *State) refreshSingleLine(prompt []rune, buf []rune, pos int) error {
@ -351,8 +357,8 @@ func (s *State) tabComplete(p []rune, line []rune, pos int) ([]rune, int, interf
}
hl := utf8.RuneCountInString(head)
if len(list) == 1 {
s.refresh(p, []rune(head+list[0]+tail), hl+utf8.RuneCountInString(list[0]))
return []rune(head + list[0] + tail), hl + utf8.RuneCountInString(list[0]), rune(esc), nil
err := s.refresh(p, []rune(head+list[0]+tail), hl+utf8.RuneCountInString(list[0]))
return []rune(head + list[0] + tail), hl + utf8.RuneCountInString(list[0]), rune(esc), err
}
direction := tabForward
@ -366,7 +372,10 @@ func (s *State) tabComplete(p []rune, line []rune, pos int) ([]rune, int, interf
if err != nil {
return line, pos, rune(esc), err
}
s.refresh(p, []rune(head+pick+tail), hl+utf8.RuneCountInString(pick))
err = s.refresh(p, []rune(head+pick+tail), hl+utf8.RuneCountInString(pick))
if err != nil {
return line, pos, rune(esc), err
}
next, err := s.readNext()
if err != nil {
@ -387,14 +396,15 @@ func (s *State) tabComplete(p []rune, line []rune, pos int) ([]rune, int, interf
}
return []rune(head + pick + tail), hl + utf8.RuneCountInString(pick), next, nil
}
// Not reached
return line, pos, rune(esc), nil
}
// reverse intelligent search, implements a bash-like history search.
func (s *State) reverseISearch(origLine []rune, origPos int) ([]rune, int, interface{}, error) {
p := "(reverse-i-search)`': "
s.refresh([]rune(p), origLine, origPos)
err := s.refresh([]rune(p), origLine, origPos)
if err != nil {
return origLine, origPos, rune(esc), err
}
line := []rune{}
pos := 0
@ -480,7 +490,10 @@ func (s *State) reverseISearch(origLine []rune, origPos int) ([]rune, int, inter
case action:
return []rune(foundLine), foundPos, next, err
}
s.refresh(getLine())
err = s.refresh(getLine())
if err != nil {
return []rune(foundLine), foundPos, rune(esc), err
}
}
}
@ -537,7 +550,10 @@ func (s *State) yank(p []rune, text []rune, pos int) ([]rune, int, interface{},
line = append(line, lineEnd...)
pos = len(lineStart) + len(value)
s.refresh(p, line, pos)
err := s.refresh(p, line, pos)
if err != nil {
return line, pos, 0, err
}
next, err := s.readNext()
if err != nil {
@ -556,8 +572,6 @@ func (s *State) yank(p []rune, text []rune, pos int) ([]rune, int, interface{},
}
}
}
return line, pos, esc, nil
}
// Prompt displays p and returns a line of user input, not including a trailing
@ -573,9 +587,19 @@ func (s *State) Prompt(prompt string) (string, error) {
// including a trailing newline character. An io.EOF error is returned if the user
// signals end-of-file by pressing Ctrl-D.
func (s *State) PromptWithSuggestion(prompt string, text string, pos int) (string, error) {
for _, r := range prompt {
if unicode.Is(unicode.C, r) {
return "", ErrInvalidPrompt
}
}
if s.inputRedirected || !s.terminalSupported {
return s.promptUnsupported(prompt)
}
p := []rune(prompt)
const minWorkingSpace = 10
if s.columns < countGlyphs(p)+minWorkingSpace {
return s.tooNarrow(prompt)
}
if s.outputRedirected {
return "", ErrNotTerminalOutput
}
@ -584,11 +608,11 @@ func (s *State) PromptWithSuggestion(prompt string, text string, pos int) (strin
defer s.historyMutex.RUnlock()
fmt.Print(prompt)
p := []rune(prompt)
var line = []rune(text)
historyEnd := ""
prefixHistory := s.getHistoryByPrefix(string(line))
historyPos := len(prefixHistory)
var historyPrefix []string
historyPos := 0
historyStale := true
historyAction := false // used to mark history related actions
killAction := 0 // used to mark kill related actions
@ -598,7 +622,10 @@ func (s *State) PromptWithSuggestion(prompt string, text string, pos int) (strin
pos = len(text)
}
if len(line) > 0 {
s.refresh(p, line, pos)
err := s.refresh(p, line, pos)
if err != nil {
return "", err
}
}
restart:
@ -621,6 +648,12 @@ mainLoop:
case rune:
switch v {
case cr, lf:
if s.needRefresh {
err := s.refresh(p, line, pos)
if err != nil {
return "", err
}
}
if s.multiLineMode {
s.resetMultiLine(p, line, pos)
}
@ -628,21 +661,21 @@ mainLoop:
break mainLoop
case ctrlA: // Start of line
pos = 0
s.refresh(p, line, pos)
s.needRefresh = true
case ctrlE: // End of line
pos = len(line)
s.refresh(p, line, pos)
s.needRefresh = true
case ctrlB: // left
if pos > 0 {
pos -= len(getSuffixGlyphs(line[:pos], 1))
s.refresh(p, line, pos)
s.needRefresh = true
} else {
fmt.Print(beep)
}
case ctrlF: // right
if pos < len(line) {
pos += len(getPrefixGlyphs(line[pos:], 1))
s.refresh(p, line, pos)
s.needRefresh = true
} else {
fmt.Print(beep)
}
@ -661,7 +694,7 @@ mainLoop:
} else {
n := len(getPrefixGlyphs(line[pos:], 1))
line = append(line[:pos], line[pos+n:]...)
s.refresh(p, line, pos)
s.needRefresh = true
}
case ctrlK: // delete remainder of line
if pos >= len(line) {
@ -675,32 +708,42 @@ mainLoop:
killAction = 2 // Mark that there was a kill action
line = line[:pos]
s.refresh(p, line, pos)
s.needRefresh = true
}
case ctrlP: // up
historyAction = true
if historyStale {
historyPrefix = s.getHistoryByPrefix(string(line))
historyPos = len(historyPrefix)
historyStale = false
}
if historyPos > 0 {
if historyPos == len(prefixHistory) {
if historyPos == len(historyPrefix) {
historyEnd = string(line)
}
historyPos--
line = []rune(prefixHistory[historyPos])
line = []rune(historyPrefix[historyPos])
pos = len(line)
s.refresh(p, line, pos)
s.needRefresh = true
} else {
fmt.Print(beep)
}
case ctrlN: // down
historyAction = true
if historyPos < len(prefixHistory) {
if historyStale {
historyPrefix = s.getHistoryByPrefix(string(line))
historyPos = len(historyPrefix)
historyStale = false
}
if historyPos < len(historyPrefix) {
historyPos++
if historyPos == len(prefixHistory) {
if historyPos == len(historyPrefix) {
line = []rune(historyEnd)
} else {
line = []rune(prefixHistory[historyPos])
line = []rune(historyPrefix[historyPos])
}
pos = len(line)
s.refresh(p, line, pos)
s.needRefresh = true
} else {
fmt.Print(beep)
}
@ -718,11 +761,11 @@ mainLoop:
copy(line[pos-len(prev):], next)
copy(line[pos-len(prev)+len(next):], scratch)
pos += len(next)
s.refresh(p, line, pos)
s.needRefresh = true
}
case ctrlL: // clear screen
s.eraseScreen()
s.refresh(p, line, pos)
s.needRefresh = true
case ctrlC: // reset
fmt.Println("^C")
if s.multiLineMode {
@ -742,7 +785,7 @@ mainLoop:
n := len(getSuffixGlyphs(line[:pos], 1))
line = append(line[:pos-n], line[pos:]...)
pos -= n
s.refresh(p, line, pos)
s.needRefresh = true
}
case ctrlU: // Erase line before cursor
if killAction > 0 {
@ -754,7 +797,7 @@ mainLoop:
killAction = 2 // Mark that there was some killing
line = line[pos:]
pos = 0
s.refresh(p, line, pos)
s.needRefresh = true
case ctrlW: // Erase word
if pos == 0 {
fmt.Print(beep)
@ -791,13 +834,13 @@ mainLoop:
}
killAction = 2 // Mark that there was some killing
s.refresh(p, line, pos)
s.needRefresh = true
case ctrlY: // Paste from Yank buffer
line, pos, next, err = s.yank(p, line, pos)
goto haveNext
case ctrlR: // Reverse Search
line, pos, next, err = s.reverseISearch(line, pos)
s.refresh(p, line, pos)
s.needRefresh = true
goto haveNext
case tab: // Tab completion
line, pos, next, err = s.tabComplete(p, line, pos)
@ -812,14 +855,16 @@ mainLoop:
case 0, 28, 29, 30, 31:
fmt.Print(beep)
default:
if pos == len(line) && !s.multiLineMode && countGlyphs(p)+countGlyphs(line) < s.columns-1 {
if pos == len(line) && !s.multiLineMode &&
len(p)+len(line) < s.columns*4 && // Avoid countGlyphs on large lines
countGlyphs(p)+countGlyphs(line) < s.columns-1 {
line = append(line, v)
fmt.Printf("%c", v)
pos++
} else {
line = append(line[:pos], append([]rune{v}, line[pos:]...)...)
pos++
s.refresh(p, line, pos)
s.needRefresh = true
}
}
case action:
@ -887,24 +932,34 @@ mainLoop:
}
case up:
historyAction = true
if historyStale {
historyPrefix = s.getHistoryByPrefix(string(line))
historyPos = len(historyPrefix)
historyStale = false
}
if historyPos > 0 {
if historyPos == len(prefixHistory) {
if historyPos == len(historyPrefix) {
historyEnd = string(line)
}
historyPos--
line = []rune(prefixHistory[historyPos])
line = []rune(historyPrefix[historyPos])
pos = len(line)
} else {
fmt.Print(beep)
}
case down:
historyAction = true
if historyPos < len(prefixHistory) {
if historyStale {
historyPrefix = s.getHistoryByPrefix(string(line))
historyPos = len(historyPrefix)
historyStale = false
}
if historyPos < len(historyPrefix) {
historyPos++
if historyPos == len(prefixHistory) {
if historyPos == len(historyPrefix) {
line = []rune(historyEnd)
} else {
line = []rune(prefixHistory[historyPos])
line = []rune(historyPrefix[historyPos])
}
pos = len(line)
} else {
@ -928,11 +983,16 @@ mainLoop:
s.cursorRows = 1
}
}
s.refresh(p, line, pos)
s.needRefresh = true
}
if s.needRefresh && !s.inputWaiting() {
err := s.refresh(p, line, pos)
if err != nil {
return "", err
}
}
if !historyAction {
prefixHistory = s.getHistoryByPrefix(string(line))
historyPos = len(prefixHistory)
historyStale = true
}
if killAction > 0 {
killAction--
@ -944,7 +1004,12 @@ mainLoop:
// PasswordPrompt displays p, and then waits for user input. The input typed by
// the user is not displayed in the terminal.
func (s *State) PasswordPrompt(prompt string) (string, error) {
if !s.terminalSupported {
for _, r := range prompt {
if unicode.Is(unicode.C, r) {
return "", ErrInvalidPrompt
}
}
if !s.terminalSupported || s.columns == 0 {
return "", errors.New("liner: function not supported in this terminal")
}
if s.inputRedirected {
@ -954,6 +1019,12 @@ func (s *State) PasswordPrompt(prompt string) (string, error) {
return "", ErrNotTerminalOutput
}
p := []rune(prompt)
const minWorkingSpace = 1
if s.columns < countGlyphs(p)+minWorkingSpace {
return s.tooNarrow(prompt)
}
defer s.stopPrompt()
restart:
@ -961,7 +1032,6 @@ restart:
s.getColumns()
fmt.Print(prompt)
p := []rune(prompt)
var line []rune
pos := 0
@ -979,6 +1049,12 @@ mainLoop:
case rune:
switch v {
case cr, lf:
if s.needRefresh {
err := s.refresh(p, line, pos)
if err != nil {
return "", err
}
}
if s.multiLineMode {
s.resetMultiLine(p, line, pos)
}
@ -995,7 +1071,10 @@ mainLoop:
s.restartPrompt()
case ctrlL: // clear screen
s.eraseScreen()
s.refresh(p, []rune{}, 0)
err := s.refresh(p, []rune{}, 0)
if err != nil {
return "", err
}
case ctrlH, bs: // Backspace
if pos <= 0 {
fmt.Print(beep)
@ -1031,3 +1110,20 @@ mainLoop:
}
return string(line), nil
}
func (s *State) tooNarrow(prompt string) (string, error) {
// Docker and OpenWRT and etc sometimes return 0 column width
// Reset mode temporarily. Restore baked mode in case the terminal
// is wide enough for the next Prompt attempt.
m, merr := TerminalMode()
s.origMode.ApplyMode()
if merr == nil {
defer m.ApplyMode()
}
if s.r == nil {
// Windows does not always set s.r
s.r = bufio.NewReader(os.Stdin)
defer func() { s.r = nil }()
}
return s.promptUnsupported(prompt)
}

12
vendor/github.com/peterh/liner/signal.go generated vendored
View File

@ -1,12 +0,0 @@
// +build go1.1,!windows
package liner
import (
"os"
"os/signal"
)
func stopSignal(c chan<- os.Signal) {
signal.Stop(c)
}

11
vendor/github.com/peterh/liner/signal_legacy.go generated vendored
View File

@ -1,11 +0,0 @@
// +build !go1.1,!windows
package liner
import (
"os"
)
func stopSignal(c chan<- os.Signal) {
// signal.Stop does not exist before Go 1.1
}

20
vendor/github.com/peterh/liner/width.go generated vendored
View File

@ -25,6 +25,12 @@ var doubleWidth = []*unicode.RangeTable{
func countGlyphs(s []rune) int {
n := 0
for _, r := range s {
// speed up the common case
if r < 127 {
n++
continue
}
switch {
case unicode.IsOneOf(zeroWidth, r):
case unicode.IsOneOf(doubleWidth, r):
@ -39,6 +45,10 @@ func countGlyphs(s []rune) int {
func countMultiLineGlyphs(s []rune, columns int, start int) int {
n := start
for _, r := range s {
if r < 127 {
n++
continue
}
switch {
case unicode.IsOneOf(zeroWidth, r):
case unicode.IsOneOf(doubleWidth, r):
@ -58,6 +68,11 @@ func countMultiLineGlyphs(s []rune, columns int, start int) int {
func getPrefixGlyphs(s []rune, num int) []rune {
p := 0
for n := 0; n < num && p < len(s); p++ {
// speed up the common case
if s[p] < 127 {
n++
continue
}
if !unicode.IsOneOf(zeroWidth, s[p]) {
n++
}
@ -71,6 +86,11 @@ func getPrefixGlyphs(s []rune, num int) []rune {
func getSuffixGlyphs(s []rune, num int) []rune {
p := len(s)
for n := 0; n < num && p > 0; p-- {
// speed up the common case
if s[p-1] < 127 {
n++
continue
}
if !unicode.IsOneOf(zeroWidth, s[p-1]) {
n++
}