bilibili-backup/library/log/logrus.go

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2019-04-22 10:59:20 +08:00
package log
import (
"context"
"io/ioutil"
"os"
"github.com/sirupsen/logrus"
)
func init() {
redirectLogrus()
}
func redirectLogrus() {
// FIXME: because of different stack depth call runtime.Caller will get error function name.
logrus.AddHook(redirectHook{})
if os.Getenv("LOGRUS_STDOUT") == "" {
logrus.SetOutput(ioutil.Discard)
}
}
type redirectHook struct{}
func (redirectHook) Levels() []logrus.Level {
return logrus.AllLevels
}
func (redirectHook) Fire(entry *logrus.Entry) error {
lv := _infoLevel
var logrusLv string
var verbose int32
switch entry.Level {
case logrus.FatalLevel, logrus.PanicLevel:
logrusLv = entry.Level.String()
fallthrough
case logrus.ErrorLevel:
lv = _errorLevel
case logrus.WarnLevel:
lv = _warnLevel
case logrus.InfoLevel:
lv = _infoLevel
case logrus.DebugLevel:
// use verbose log replace of debuglevel
verbose = 10
}
args := make([]D, 0, len(entry.Data)+1)
args = append(args, D{Key: _log, Value: entry.Message})
for k, v := range entry.Data {
args = append(args, D{Key: k, Value: v})
}
if logrusLv != "" {
args = append(args, D{Key: "logrus_lv", Value: logrusLv})
}
if verbose != 0 {
V(verbose).Infov(context.Background(), args...)
} else {
h.Log(context.Background(), lv, args...)
}
return nil
}