os/log/showuserlog.go

package log

import (
	"fmt"
	"github.com/Sirupsen/logrus"
	"os"
)

// ShowuserlogHook writes all levels of logrus entries to a file for later analysis
type ShowuserlogHook struct {
	Level logrus.Level
}

func NewShowuserlogHook(l logrus.Level) (*ShowuserlogHook, error) {
	return &ShowuserlogHook{l}, nil
}

func (hook *ShowuserlogHook) Fire(entry *logrus.Entry) error {
	line, err := entry.String()
	if err != nil {
		fmt.Fprintf(os.Stderr, "Unable to read entry, %v", err)
		return err
	}

	if entry.Level <= hook.Level {
		fmt.Printf("> %s", line)
	}
	return nil
}

func (hook *ShowuserlogHook) Levels() []logrus.Level {
	return []logrus.Level{
		logrus.DebugLevel,
		logrus.InfoLevel,
		logrus.WarnLevel,
		logrus.ErrorLevel,
		logrus.FatalLevel,
		logrus.PanicLevel,
	}
}