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config.go
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/
config.go
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 log
import (
"errors"
"os"
)
// OutputConfig defines the output config which can be reconfigured by user.
type OutputConfig struct {
// LogPath is the path for the log.
LogPath string
// Level is the log level.
Level string
// MaxSize is the max size for a rolling log.
MaxSize int
// MaxBackups is the maximum number of old log files to retain.
MaxBackups int
// MaxAge is the maximum number of days to retain old log files based on the
// timestamp encoded in their filename.
MaxAge int
}
var defaultConfig = &OutputConfig{
LogPath: "../log/tubemq.log",
MaxSize: 100,
MaxBackups: 5,
MaxAge: 3,
Level: "warn",
}
// SetLogLevel set log level
func SetLogLevel(level string) error {
if _, exist := LevelNames[level]; !exist {
return errors.New("the supported log levels are: trace, debug, info, warn, error, fatal. Please check your log level")
}
defaultConfig.Level = level
return nil
}
// SetLogPath set log path
func SetLogPath(path string) error {
err := verifyLogPath(path)
if err != nil {
return err
}
defaultConfig.LogPath = path
return nil
}
func verifyLogPath(path string) error {
// Check if file already exists
if _, err := os.Stat(path); err == nil {
return nil
}
// Attempt to create it
var d []byte
err := os.WriteFile(path, d, 0644)
if err == nil {
removeErr := os.Remove(path)
if removeErr != nil {
return removeErr
} // And delete it
return nil
}
return err
}