any function to do a log rotation?

[jiang-wei]

Is there a function to set the log rotation?
otherwise I have to write some function to:

1. setup a new LogBackend with a new filename and replace the current Backend
2. rename the old log file to xxx.log.$DATETIME
3. rename the new log file to xxx.log

[guycalledseven]

IMHO this is job for os at system level via logrotate or similar on unix.
But you could try Rotating File writer which implements io.writer so you just push that to logging.NewLogBackend instead.

[op]

Agree, there are already many solutions out there. Good luck!

[cedricve]

This library is great: https://github.com/natefinch/lumberjack.

fileBackend := logging.NewLogBackend(&lumberjack.Logger{
Filename:   "./logs/log.log",
MaxSize:    2, // megabytes
Compress:   true, // disabled by default
}, "", 0)
logging.SetBackend(stdBackendLeveled, mqttBackend, fileBackend)