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Beego/logs/console.go

93 lines
1.9 KiB
Go

// Beego (http://beego.me/)
//
// @description beego is an open-source, high-performance web framework for the Go programming language.
//
// @link http://github.com/astaxie/beego for the canonical source repository
//
// @license http://github.com/astaxie/beego/blob/master/LICENSE
//
// @authors astaxie
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 green
NewBrush("1;30"), // Debug black
}
// 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 := new(ConsoleWriter)
cw.lg = log.New(os.Stdout, "", log.Ldate|log.Ltime)
cw.Level = LevelDebug
return cw
}
// init console logger.
// jsonconfig like '{"level":LevelTrace}'.
func (c *ConsoleWriter) Init(jsonconfig string) error {
if len(jsonconfig) == 0 {
return nil
}
err := json.Unmarshal([]byte(jsonconfig), c)
if err != nil {
return err
}
return nil
}
// 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)
} else {
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)
}