A simple logging module for go, with a rotating file feature and console logging.
Installation
go get github.com/jbrodriguez/mlog
Usage
Sample usage
Write to stdout/stderr and create a rotating logfile
package main
import "github.com/jbrodriguez/mlog"
func main() {
mlog.Start(mlog.LevelInfo, "app.log")
mlog.Info("Hello World !")
ipsum := "ipsum"
mlog.Warning("Lorem %s", ipsum)
}
Write to stdout/stderr only
package main
import "github.com/jbrodriguez/mlog"
func main() {
mlog.Start(mlog.LevelInfo, "")
mlog.Info("Hello World !")
ipsum := "ipsum"
mlog.Warning("Lorem %s", ipsum)
}
By default, the log will be rolled over to a backup file when its size reaches 10Mb and 10 such files will be created (and eventually reused).
Alternatively, you can specify the max size of the log file before it gets rotated, and the number of backup files you want to create, with the StartEx function.
package main
import "github.com/jbrodriguez/mlog"
func main() {
mlog.StartEx(mlog.LevelInfo, "app.log", 5*1024*1024, 5)
mlog.Info("Hello World !")
ipsum := "ipsum"
mlog.Warning("Lorem %s", ipsum)
}
This will rotate the file when it reaches 5Mb and 5 backup files will eventually be created.
Setting logger flags:
mlog.DefaultFlags = log.Ldate|log.Ltime|log.Lmicroseconds|log.Lshortfile
Output
I: 2015/05/15 07:09:45 main.go:10: Hello World !
W: 2015/05/15 07:09:45 main.go:13: Lorem ipsum
1.3k Dec 29, 2022
0 Sep 24, 2021
13 Sep 26, 2022
175 Nov 28, 2022
283 Sep 26, 2022
21 Dec 20, 2021
19 Aug 11, 2022
891 Dec 30, 2022
2 Nov 14, 2022
34 Jul 12, 2021
14 Dec 7, 2022
1 Jan 8, 2022
50 Jul 20, 2022
19 Sep 26, 2022
55 Aug 3, 2022
0 Nov 10, 2021
0 Feb 3, 2022
6 May 8, 2023