frp/vendor/github.com/astaxie/beego/logs/console.go
2016-08-11 16:26:21 +08:00

96 lines
2.2 KiB
Go

// 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 logs
import (
"encoding/json"
"log"
"os"
"runtime"
)
type Brush func(string) string
func NewBrush(color string) Brush {
pre := "\033["
reset := "\033[0m"
return func(text string) string {
return pre + color + "m" + text + reset
}
}
var colors = []Brush{
NewBrush("1;37"), // Emergency white
NewBrush("1;36"), // Alert cyan
NewBrush("1;35"), // Critical magenta
NewBrush("1;31"), // Error red
NewBrush("1;33"), // Warning yellow
NewBrush("1;32"), // Notice green
NewBrush("1;34"), // Informational blue
NewBrush("1;34"), // Debug blue
}
// ConsoleWriter implements LoggerInterface and writes messages to terminal.
type ConsoleWriter struct {
lg *log.Logger
Level int `json:"level"`
}
// create ConsoleWriter returning as LoggerInterface.
func NewConsole() LoggerInterface {
cw := &ConsoleWriter{
lg: log.New(os.Stdout, "", log.Ldate|log.Ltime),
Level: LevelDebug,
}
return cw
}
// init console logger.
// jsonconfig like '{"level":LevelTrace}'.
func (c *ConsoleWriter) Init(jsonconfig string) error {
if len(jsonconfig) == 0 {
return nil
}
return json.Unmarshal([]byte(jsonconfig), c)
}
// write message in console.
func (c *ConsoleWriter) WriteMsg(msg string, level int) error {
if level > c.Level {
return nil
}
if goos := runtime.GOOS; goos == "windows" {
c.lg.Println(msg)
return nil
}
c.lg.Println(colors[level](msg))
return nil
}
// implementing method. empty.
func (c *ConsoleWriter) Destroy() {
}
// implementing method. empty.
func (c *ConsoleWriter) Flush() {
}
func init() {
Register("console", NewConsole)
}