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![IamCathal](/assets/img/avatar_default.png)
Also moved is Colorful check to WriteMsg function to make the interface for user's using the custom logging formatting simpler. The user does not have to check if the text is colorful now, the WriteMsg function handles it.
135 lines
3.1 KiB
Go
135 lines
3.1 KiB
Go
// Copyright 2014 beego Author. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package logs
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import (
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"encoding/json"
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"os"
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"strings"
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"github.com/astaxie/beego/pkg/common"
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"github.com/shiena/ansicolor"
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)
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// brush is a color join function
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type brush func(string) string
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// newBrush returns a fix color Brush
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func newBrush(color string) brush {
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pre := "\033["
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reset := "\033[0m"
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return func(text string) string {
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return pre + color + "m" + text + reset
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}
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}
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var colors = []brush{
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newBrush("1;37"), // Emergency white
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newBrush("1;36"), // Alert cyan
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newBrush("1;35"), // Critical magenta
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newBrush("1;31"), // Error red
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newBrush("1;33"), // Warning yellow
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newBrush("1;32"), // Notice green
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newBrush("1;34"), // Informational blue
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newBrush("1;44"), // Debug Background blue
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}
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// consoleWriter implements LoggerInterface and writes messages to terminal.
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type consoleWriter struct {
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lg *logWriter
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customFormatter func(*LogMsg) string
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Level int `json:"level"`
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Colorful bool `json:"color"` //this filed is useful only when system's terminal supports color
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}
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func (c *consoleWriter) Format(lm *LogMsg) string {
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msg := lm.Msg
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h, _, _ := formatTimeHeader(lm.When)
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bytes := append(append(h, msg...), '\n')
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return string(bytes)
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}
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// NewConsole creates ConsoleWriter returning as LoggerInterface.
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func NewConsole() Logger {
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cw := &consoleWriter{
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lg: newLogWriter(ansicolor.NewAnsiColorWriter(os.Stdout)),
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Level: LevelDebug,
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Colorful: true,
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}
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return cw
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}
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// Init initianlizes the console logger.
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// jsonConfig must be in the format '{"level":LevelTrace}'
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func (c *consoleWriter) Init(jsonConfig string, opts ...common.SimpleKV) error {
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for _, elem := range opts {
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if elem.Key == "formatter" {
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formatter, err := GetFormatter(elem)
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if err != nil {
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return err
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}
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c.customFormatter = formatter
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}
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}
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if len(jsonConfig) == 0 {
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return nil
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}
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return json.Unmarshal([]byte(jsonConfig), c)
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}
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// WriteMsg writes message in console.
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func (c *consoleWriter) WriteMsg(lm *LogMsg) error {
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if lm.Level > c.Level {
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return nil
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}
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msg := ""
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if c.Colorful {
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lm.Msg = strings.Replace(lm.Msg, levelPrefix[lm.Level], colors[lm.Level](levelPrefix[lm.Level]), 1)
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}
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if c.customFormatter != nil {
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msg = c.customFormatter(lm)
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} else {
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msg = c.Format(lm)
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}
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c.lg.writeln(msg)
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return nil
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}
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// Destroy implementing method. empty.
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func (c *consoleWriter) Destroy() {
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}
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// Flush implementing method. empty.
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func (c *consoleWriter) Flush() {
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}
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func init() {
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Register(AdapterConsole, NewConsole)
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}
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