logrus/hooks/caller/caller.go

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package logrus_caller
import (
"github.com/Sirupsen/logrus"
"path/filepath"
"runtime"
"strconv"
"strings"
)
type CallerHook struct {
}
func (hook *CallerHook) Fire(entry *logrus.Entry) error {
entry.Data["caller"] = hook.caller()
return nil
}
func (hook *CallerHook) Levels() []logrus.Level {
return []logrus.Level{
logrus.PanicLevel,
logrus.FatalLevel,
logrus.ErrorLevel,
logrus.WarnLevel,
logrus.InfoLevel,
logrus.DebugLevel,
}
}
func (hook *CallerHook) caller() string {
if _, file, line, ok := runtime.Caller(6); ok {
return strings.Join([]string{filepath.Base(file), strconv.Itoa(line)}, ":")
}
// not sure what the convention should be here
return ""
}