Yet another Go Logger
log is simple extended version of standard 'log' package based on logLevel most of the concepts inspired from glog and tracelog these packages are huge and complex.
Hence we writing our own log package with as simple as possible and extensible to third party logging systems such as Papertrail, Loggly, LogDNA.
package main import ( "flag" "io" "time" syslog "log" "github.com/manigandand/log" ) var ( logLevel = flag.String("log", "INFO", "log-level for the app valid choice INFO, WARNING, ERROR, FATAL, PANIC") papertrailAddr = flag.String("papertrail", "", "with valid papertrail address starts logging on papertrail.") ) func main() { flag.Parse() // init log var multiWriter io.Writer if *papertrailAddr != "" { multiWriter = &log.Papertrail{Address: *papertrailAddr} } l, ok := log.Levels[*logLevel] if !ok { syslog.Fatal("log: invalid log-level") } log.Init(l, multiWriter) // ex log.Info("log info level example") log.Infof("%s---%d", "time", time.Now().Unix()) log.Infoln("log info level example") log.Warning("log info level example") log.Warningf("%s---%d", "time", time.Now().Unix()) log.Warningln("log info level example") log.Error("log info level example") log.Errorf("%s---%d", "time", time.Now().Unix()) log.Errorln("log info level example") log.Fatal("log info level example") log.Fatalf("%s---%d", "time", time.Now().Unix()) log.Fatalln("log info level example") log.Panic("log info level example") log.Panicf("%s---%d", "time", time.Now().Unix()) log.Panicln("log info level example") }INFO: 2019/10/07 18:37:20 main.go:35: log info level example INFO: 2019/10/07 18:37:20 main.go:36: time---1570453640 INFO: 2019/10/07 18:37:20 main.go:37: log info level exampleWARNING: 2019/10/07 18:37:20 main.go:39: log info level example WARNING: 2019/10/07 18:37:20 main.go:40: time---1570453640 WARNING: 2019/10/07 18:37:20 main.go:41: log info level exampleERROR: 2019/10/07 18:37:20 main.go:43: log info level example ERROR: 2019/10/07 18:37:20 main.go:44: time---1570453640 ERROR: 2019/10/07 18:37:20 main.go:45: log info level exampleFATAL: 2019/10/07 18:37:20 main.go:47: log info level example exit status 1PANIC: 2019/10/07 18:37:20 main.go:47: log info level example exit status 1TODO:
- Context based logging.
- github.com/sirupsen/logrus
- github.com/uber-go/zap
MIT