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|
//go:build windows
// +build windows
package main
import (
"bytes"
"fmt"
"github.com/sirupsen/logrus"
"golang.org/x/sys/windows/svc/eventlog"
)
// Logrus hook that delegates to windows event log
type EventLogHook struct {
events *eventlog.Log
}
type LogFormat struct {
name string
}
func (f *LogFormat) Format(entry *logrus.Entry) ([]byte, error) {
var b *bytes.Buffer
if entry.Buffer != nil {
b = entry.Buffer
} else {
b = &bytes.Buffer{}
}
fmt.Fprintf(b, "[%-5s] %s: %s", entry.Level.String(), f.name, entry.Message)
for key, value := range entry.Data {
fmt.Fprintf(b, " {%s = %s}", key, value)
}
b.WriteByte('\n')
return b.Bytes(), nil
}
func NewEventHook(events *eventlog.Log, name string) *EventLogHook {
logrus.SetFormatter(&LogFormat{name})
return &EventLogHook{events}
}
func (hook *EventLogHook) Fire(entry *logrus.Entry) error {
line, err := entry.String()
if err != nil {
return err
}
switch entry.Level {
case logrus.PanicLevel:
return hook.events.Error(1002, line)
case logrus.FatalLevel:
return hook.events.Error(1001, line)
case logrus.ErrorLevel:
return hook.events.Error(1000, line)
case logrus.WarnLevel:
return hook.events.Warning(1000, line)
case logrus.InfoLevel:
return hook.events.Info(1000, line)
case logrus.DebugLevel, logrus.TraceLevel:
return hook.events.Info(1001, line)
default:
return nil
}
}
func (hook *EventLogHook) Levels() []logrus.Level {
return logrus.AllLevels
}
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