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README
Apache-2.0

简介

该日志包参考 paas-lager,做了一些便捷性上的改动,功能完全一样,只不过该日志包更便捷些。

Go开发中常用的log包有:

  • log
  • glog
  • logrus
  • ...

logglog比较简单,无法满足生产级的程序开发。logrus功能很强大,但缺少rotate功能,需要自己通过外部的程序来rotate日志文件。该日志包总结了企业开发中常用的需求,将这些功能整合在一个日志包中。经过测试该日志包性能完全可以满足企业级的生产需求。

使用方法

在使用log包前,需要先初始化log包,初始化函数有:InitWithConfig(), InitWithFile()。一个简单的example:

package main

import (
	"fmt"

	"gitee.com/gaozhenhai/log"
	"gitee.com/gaozhenhai/log/lager"
)

func main() {
	log.InitWithFile("log.yaml")

	for i := 0; i < 1; i++ {
		log.Infof("Hi %s, system is starting up ...", "paas-bot")
		log.Info("check-info", lager.Data{
			"info": "something",
		})

		log.Debug("check-info", lager.Data{
			"info": "something",
		})

		log.Warn("failed-to-do-somthing", lager.Data{
			"info": "something",
		})

		err := fmt.Errorf("This is an error")
		log.Error("failed-to-do-somthing", err)

		log.Info("shutting-down")
	}
}

log.yaml文件为:

writers: file,stdout
logger_level: DEBUG
logger_file: logs/log.log
log_format_text: false
rollingPolicy: size # size, daily
log_rotate_date: 1
log_rotate_size: 1
log_backup_count: 7

日志参数

  • writers: 输出位置,有2个可选项:file,stdout。选择file会将日志记录到logger_file指定的日志文件中,选择stdout会将日志输出到标准输出,当然也可以两者同时选择
  • logger_level: 日志级别,DEBUG, INFO, WARN, ERROR, FATAL
  • logger_file: 日志文件
  • log_format_text: 日志的输出格式,json或者plaintext,true会输出成json格式,false会输出成非json格式
  • rollingPolicy: rotate依据,可选的有:daily, size。如果选daily则根据天进行转存,如果是size则根据大小进行转存
  • log_rotate_date: rotate转存时间,配合rollingPolicy: daily使用
  • log_rotate_size: rotate转存大小,配合rollingPolicy: size使用
  • log_backup_count:当日志文件达到转存标准时,log系统会将该日志文件进行压缩备份,这里指定了备份文件的最大个数。
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