1b4bb94ac4
This is an attempt cleanup code and keep the top level config functions simpler and easy to understand where as move the notifier related code and logger setter/getter methods as part of their own struct. Locks are now held properly not globally by configMutex, but instead as private variables. Final fix for #3700
84 lines
2 KiB
Go
84 lines
2 KiB
Go
/*
|
|
* Minio Cloud Storage, (C) 2015, 2016 Minio, Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package cmd
|
|
|
|
import (
|
|
"fmt"
|
|
"io/ioutil"
|
|
"os"
|
|
|
|
"github.com/Sirupsen/logrus"
|
|
)
|
|
|
|
type fileLogger struct {
|
|
Enable bool `json:"enable"`
|
|
Filename string `json:"fileName"`
|
|
Level string `json:"level"`
|
|
}
|
|
|
|
type localFile struct {
|
|
*os.File
|
|
}
|
|
|
|
func enableFileLogger() {
|
|
flogger := serverConfig.Logger.GetFile()
|
|
if !flogger.Enable || flogger.Filename == "" {
|
|
return
|
|
}
|
|
|
|
// Creates the named file with mode 0666, honors system umask.
|
|
file, err := os.OpenFile(flogger.Filename, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0666)
|
|
fatalIf(err, "Unable to open log file.")
|
|
|
|
fileLogger := logrus.New()
|
|
|
|
// Add a local file hook.
|
|
fileLogger.Hooks.Add(&localFile{file})
|
|
|
|
lvl, err := logrus.ParseLevel(flogger.Level)
|
|
fatalIf(err, "Unknown log level found in the config file.")
|
|
|
|
// Set default JSON formatter.
|
|
fileLogger.Out = ioutil.Discard
|
|
fileLogger.Formatter = new(logrus.JSONFormatter)
|
|
fileLogger.Level = lvl // Minimum log level.
|
|
|
|
log.mu.Lock()
|
|
log.loggers = append(log.loggers, fileLogger)
|
|
log.mu.Unlock()
|
|
}
|
|
|
|
// Fire fires the file logger hook and logs to the file.
|
|
func (l *localFile) Fire(entry *logrus.Entry) error {
|
|
line, err := entry.String()
|
|
if err != nil {
|
|
return fmt.Errorf("Unable to read entry, %v", err)
|
|
}
|
|
l.File.Write([]byte(line))
|
|
l.File.Sync()
|
|
return nil
|
|
}
|
|
|
|
// Levels - indicate log levels supported.
|
|
func (l *localFile) Levels() []logrus.Level {
|
|
return []logrus.Level{
|
|
logrus.PanicLevel,
|
|
logrus.FatalLevel,
|
|
logrus.ErrorLevel,
|
|
}
|
|
}
|