umisama/golog

golog is yet another logger implementation for golang.

Features

• 4 log level : DEBUG, INFO, WARN, CRITICAL
• very small cost on non-output function call.
• output format is free with text/template. can use these factors...
• file name( full / short )
• function name( full / short )
• line number
• time
• message
• time format is free

Usage

godoc is here

simple example:

package main

import (
	"github.com/umisama/golog"
	"os"
)

var logger log.Logger

func OtherFuncName() {
	logger.Info("here is OtherFuncName()")
}

func main() {
	logger, _ = log.NewLogger(os.Stdout,
						log.TIME_FORMAT_SEC,		// Set time writting format.
						log.LOG_FORMAT_POWERFUL,	// Set log writting format.
						log.LogLevel_Debug)			// Set log level.

	logger.Debug("debug")
	logger.Info("Infomation")
	logger.Warn("Warning!")
	logger.Critical("Critical!")

	OtherFuncName()
}

2014/2/9 12:41:59 main.go:20(main) : "debug"
2014/2/9 12:41:59 main.go:21(main) : "Infomation"
2014/2/9 12:41:59 main.go:22(main) : "Warning!"
2014/2/9 12:41:59 main.go:23(main) : "Critical!"
2014/2/9 12:41:59 main.go:11(OtherFuncName) : "here is OtherFuncName()"

in production, change log level.

	logger, _ = log.NewLogger(os.Stdout,
						log.TIME_FORMAT_SEC,		// Set time writting format.
						log.LOG_FORMAT_POWERFUL,	// Set log writting format.
						log.LogLevel_Critical)		// Set log level.

2014/2/9 12:41:59 main.go:23(main) : "Critical!"

install

go get github.com/umisama/golog

Feedback

@umisama
[email protected]