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GitHub - codeskyblue/klog: Simple log extention for golang official log, ^_^ I like simple.

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library for golang

First thanks to the 3 people who stars of the project beelog which encouraged me to rewrite beelog, and klog comes out.

klog learn from a lot other log system for golang, like beego, seelog, glog, qiniu-log.

Introdution

From my experience of some project. I think there are only 5 level needed. Debug Info Warning Error Fatal

Default level is Info. Use SetLevel(level) to change.

Default output style is

prefix 2006/01/02 03:04:05 [INFO] hello world

Use SetFlags(klog.Fdevflag) will change output to

prefix 2006/01/02 03:04:05 [INFO] hello.go:7 hello world

Color output is default enabled in console, and auto closed when redirected to a file.

DEBUG  "Cyan",
INFO   "Green",
WARN   "Magenta",
ERROR  "Yellow",
FATAL  "Red",

How to use

below this is a simple example

More usage please reference http://gowalker.org/github.com/shxsun/klog

go get github.com/shxsun/klog

package main
import "github.com/shxsun/klog"

func main(){
	// Example 1
	// use klog.StdLog, klog.DevLog for logging
	klog.StdLog.Warnf("Hello world")
	// output: 2013/12/01 12:00:00 [Warn] Hello world
	// StdLog default level is Warning
	
	klog.DevLog.Debugf("Nice")
	// output: 2013/12/01 12:00:00 main.go:12 [DEBUG] Hello world
	
	// Example 2
	k2 := klog.NewLogger(nil) // Write to stdout
	//k := klog.NewLogger(nil, "option-prefix") // with prefix
	
	// Example 3
	k3, err := klog.NewFileLogger("app.log")
	if err != nil { ...	}

	k = klog.DevLog
	k.Infof("Hi %s.", "Susan")
	k.Warn("Oh my god, you are alive!")
	k.Error("Yes, but I will go to Mars tomorrow. So only one day with you")
	k.Fatal("Oh no, donot leave me again... faint") // Fatal will call os.Exit(1)
}

sample