package log import ( "io" "github.com/sirupsen/logrus" ) type fileLogHook struct { Writer io.Writer Formatter logrus.Formatter } func (hook *fileLogHook) Fire(entry *logrus.Entry) error { line, err := hook.Formatter.Format(entry) if err != nil { return err } _, err = hook.Writer.Write(line) return err } func (hook *fileLogHook) Levels() []logrus.Level { return logrus.AllLevels }