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hook_rotatefile.go
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/
hook_rotatefile.go
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// Package logs Copyright 2019 by linx, All rights reserved.
// Use of this source code is governed by a MIT
// license that can be found in the LICENSE file.
package logs
import (
"io"
"strings"
)
type RotateFileConfig struct {
Filename string
MaxSize int
MaxBackups int
MaxAge int
SeparateLevelFile bool
Level Level
Formatter Formatter
}
type RotateFileHook struct {
Config RotateFileConfig
logWriter io.Writer
logWriters map[Level]io.Writer
}
func NewRotateFileHook(config RotateFileConfig) (Hook, error) {
hook := RotateFileHook{
Config: config,
}
if config.SeparateLevelFile {
levels := hook.Levels()
hook.logWriters = make(map[Level]io.Writer)
for _, level := range levels {
hook.logWriters[level] = &RotateFileLogger{
Filename: strings.ReplaceAll(config.Filename, "<level>", level.String()),
MaxSize: config.MaxSize,
MaxBackups: config.MaxBackups,
MaxAge: config.MaxAge,
LocalTime: true,
}
}
} else {
hook.logWriter = &RotateFileLogger{
Filename: config.Filename,
MaxSize: config.MaxSize,
MaxBackups: config.MaxBackups,
MaxAge: config.MaxAge,
LocalTime: true,
}
}
return &hook, nil
}
func (hook *RotateFileHook) Levels() []Level {
return AllLevels[:hook.Config.Level+1]
}
func (hook *RotateFileHook) Fire(entry *Entry) (err error) {
b, err := hook.Config.Formatter.Format(entry)
if err != nil {
return err
}
if hook.logWriter != nil {
hook.logWriter.Write(b)
} else {
if w, ok := hook.logWriters[entry.Level]; ok {
w.Write(b)
}
}
return nil
}