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https://github.com/astaxie/beego.git
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98 lines
2.3 KiB
Go
98 lines
2.3 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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"log"
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"os"
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"runtime"
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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 return 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;34"), // Debug 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 *log.Logger
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Level int `json:"level"`
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}
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// NewConsole create ConsoleWriter returning as LoggerInterface.
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func NewConsole() Logger {
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cw := &consoleWriter{
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lg: log.New(os.Stdout, "", log.Ldate|log.Ltime),
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Level: LevelDebug,
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}
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return cw
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}
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// Init init console logger.
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// jsonconfig like '{"level":LevelTrace}'.
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func (c *consoleWriter) Init(jsonconfig string) error {
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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 write message in console.
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func (c *consoleWriter) WriteMsg(msg string, level int) error {
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if level > c.Level {
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return nil
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}
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if goos := runtime.GOOS; goos == "windows" {
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c.lg.Println(msg)
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return nil
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}
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c.lg.Println(colors[level](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("console", NewConsole)
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}
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