PSlog

A golang log wrapper with prefix.

Features

1. Now is based on logrus.
2. Log content with prefix string.
3. Create sub logger with grouped prefix
4. Error with prefix string.

Usage

package main

import (
	"github.com/menduo/pslog"
	"github.com/sirupsen/logrus"
	"strings"
)

func main() {

	l1 := pslog.New("l1")
	l1sub1 := l1.Sub("sub1", pslog.WithErrorFormat("我的天哪出错了: %s"))

	l2 := pslog.New("l2")

	l2sub1 := l2.Sub("sub1")

	l3 := pslog.New("l3", pslog.WithLogger(logrus.New()))

	l1.Warn("hello")
	l2.Warn("hello")
	l3.Warn("hello")
	l1sub1.Warn("hello")
	l2sub1.Warn("hello")

	// output:
	/*
		WARN[0000] [l1]hello
		WARN[0000] [l2]hello
		WARN[0000] [l3]hello
		WARN[0000] [l1.sub1]hello
		WARN[0000] [l2.sub2]hello
	*/
	err1 := l1.NewErrWithMsgs("this is an error")
	err1sub1 := l1sub1.NewErrWithFormat("i am what i am %s", "what i am...")

	l2.Infoln("err1==nil", err1 == nil)         // false
	l2.Infoln("err1.Error():   ", err1.Error()) // -> [l1]:  this is an error

	l1.Infoln("err1sub1==nil", err1sub1 == nil) // false
	l3.Infoln("err1sub1 ===:", err1sub1.Error())
	// 	l2.Infoln("err1.Error():   ", err1.Error()) // -> [l1]:  this is an error

	l4 := pslog.New("l4", pslog.WithPSGenerOption(func(pslist []string) string {
		return "这是什么前缀啊...." + strings.Join(pslist, "---")
	}))

	l4.Infoln("hello") // 这是什么前缀啊....l4 hello
}

License

MIT License

Contact

shimenduo@gmail.com