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package main
import (
"fmt"
"io/ioutil"
"os"
"github.com/kardianos/service"
"github.com/sirupsen/logrus"
)
// HookLogger routes the logrus logs through the service logger so that they end up in the Windows Event Viewer
// logrus output will be discarded
func HookLogger(l *logrus.Logger) {
l.AddHook(newLogHook(logger))
l.SetOutput(ioutil.Discard)
}
type logHook struct {
sl service.Logger
}
func newLogHook(sl service.Logger) *logHook {
return &logHook{sl: sl}
}
func (h *logHook) Fire(entry *logrus.Entry) error {
line, err := entry.String()
if err != nil {
fmt.Fprintf(os.Stderr, "Unable to read entry, %v", err)
return err
}
switch entry.Level {
case logrus.PanicLevel:
return h.sl.Error(line)
case logrus.FatalLevel:
return h.sl.Error(line)
case logrus.ErrorLevel:
return h.sl.Error(line)
case logrus.WarnLevel:
return h.sl.Warning(line)
case logrus.InfoLevel:
return h.sl.Info(line)
case logrus.DebugLevel:
return h.sl.Info(line)
default:
return nil
}
}
func (h *logHook) Levels() []logrus.Level {
return logrus.AllLevels
}
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