mirror of
https://github.com/42wim/matterbridge.git
synced 2024-11-24 03:32:02 -08:00
79 lines
2.2 KiB
Go
79 lines
2.2 KiB
Go
package targets
|
|
|
|
import (
|
|
"errors"
|
|
"io"
|
|
|
|
"github.com/mattermost/logr/v2"
|
|
"gopkg.in/natefinch/lumberjack.v2"
|
|
)
|
|
|
|
type FileOptions struct {
|
|
// Filename is the file to write logs to. Backup log files will be retained
|
|
// in the same directory. It uses <processname>-lumberjack.log in
|
|
// os.TempDir() if empty.
|
|
Filename string `json:"filename"`
|
|
|
|
// MaxSize is the maximum size in megabytes of the log file before it gets
|
|
// rotated. It defaults to 100 megabytes.
|
|
MaxSize int `json:"max_size"`
|
|
|
|
// MaxAge is the maximum number of days to retain old log files based on the
|
|
// timestamp encoded in their filename. Note that a day is defined as 24
|
|
// hours and may not exactly correspond to calendar days due to daylight
|
|
// savings, leap seconds, etc. The default is not to remove old log files
|
|
// based on age.
|
|
MaxAge int `json:"max_age"`
|
|
|
|
// MaxBackups is the maximum number of old log files to retain. The default
|
|
// is to retain all old log files (though MaxAge may still cause them to get
|
|
// deleted.)
|
|
MaxBackups int `json:"max_backups"`
|
|
|
|
// Compress determines if the rotated log files should be compressed
|
|
// using gzip. The default is not to perform compression.
|
|
Compress bool `json:"compress"`
|
|
}
|
|
|
|
func (fo FileOptions) CheckValid() error {
|
|
if fo.Filename == "" {
|
|
return errors.New("filename cannot be empty")
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// File outputs log records to a file which can be log rotated based on size or age.
|
|
// Uses `https://github.com/natefinch/lumberjack` for rotation.
|
|
type File struct {
|
|
out io.WriteCloser
|
|
}
|
|
|
|
// NewFileTarget creates a target capable of outputting log records to a rotated file.
|
|
func NewFileTarget(opts FileOptions) *File {
|
|
lumber := &lumberjack.Logger{
|
|
Filename: opts.Filename,
|
|
MaxSize: opts.MaxSize,
|
|
MaxBackups: opts.MaxBackups,
|
|
MaxAge: opts.MaxAge,
|
|
Compress: opts.Compress,
|
|
}
|
|
f := &File{out: lumber}
|
|
return f
|
|
}
|
|
|
|
// Init is called once to initialize the target.
|
|
func (f *File) Init() error {
|
|
return nil
|
|
}
|
|
|
|
// Write outputs bytes to this file target.
|
|
func (f *File) Write(p []byte, rec *logr.LogRec) (int, error) {
|
|
return f.out.Write(p)
|
|
}
|
|
|
|
// Shutdown is called once to free/close any resources.
|
|
// Target queue is already drained when this is called.
|
|
func (f *File) Shutdown() error {
|
|
return f.out.Close()
|
|
}
|