Decent init of zerolog

zerologInit.go

var logLevel = zerolog.InfoLevel
var logout = zerolog.ConsoleWriter{
	Out:        os.Stdout,
	TimeFormat: time.RFC3339,
}

func init() {
	if os.Getenv("GLOG") == "warn" {
		logLevel = zerolog.WarnLevel
	} else if os.Getenv("GLOG") == "no" {
		logLevel = zerolog.Disabled
	}

	// From the official doc
	zerolog.CallerMarshalFunc = func(file string, line int) string {
		short := file
		for i := len(file) - 1; i > 0; i-- {
			if file[i] == '/' {
				short = file[i+1:]
				break
			}
		}
		file = short
		return file + ":" + strconv.Itoa(line)
	}
}

var RootLogger = zerolog.New(logout).Level(logLevel).
	With().Timestamp().Logger().
	With().Caller().Logger()