mirror of
https://github.com/cwinfo/matterbridge.git
synced 2024-11-25 21:21:35 +00:00
88 lines
2.4 KiB
Go
88 lines
2.4 KiB
Go
package target
|
|
|
|
import (
|
|
"context"
|
|
"io"
|
|
|
|
"github.com/mattermost/logr"
|
|
"github.com/wiggin77/merror"
|
|
"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
|
|
|
|
// MaxSize is the maximum size in megabytes of the log file before it gets
|
|
// rotated. It defaults to 100 megabytes.
|
|
MaxSize int
|
|
|
|
// 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
|
|
|
|
// 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
|
|
|
|
// Compress determines if the rotated log files should be compressed
|
|
// using gzip. The default is not to perform compression.
|
|
Compress bool
|
|
}
|
|
|
|
// 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 {
|
|
logr.Basic
|
|
out io.WriteCloser
|
|
}
|
|
|
|
// NewFileTarget creates a target capable of outputting log records to a rotated file.
|
|
func NewFileTarget(filter logr.Filter, formatter logr.Formatter, opts FileOptions, maxQueue int) *File {
|
|
lumber := &lumberjack.Logger{
|
|
Filename: opts.Filename,
|
|
MaxSize: opts.MaxSize,
|
|
MaxBackups: opts.MaxBackups,
|
|
MaxAge: opts.MaxAge,
|
|
Compress: opts.Compress,
|
|
}
|
|
f := &File{out: lumber}
|
|
f.Basic.Start(f, f, filter, formatter, maxQueue)
|
|
return f
|
|
}
|
|
|
|
// Write converts the log record to bytes, via the Formatter,
|
|
// and outputs to a file.
|
|
func (f *File) Write(rec *logr.LogRec) error {
|
|
_, stacktrace := f.IsLevelEnabled(rec.Level())
|
|
|
|
buf := rec.Logger().Logr().BorrowBuffer()
|
|
defer rec.Logger().Logr().ReleaseBuffer(buf)
|
|
|
|
buf, err := f.Formatter().Format(rec, stacktrace, buf)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
_, err = f.out.Write(buf.Bytes())
|
|
return err
|
|
}
|
|
|
|
// Shutdown flushes any remaining log records and closes the file.
|
|
func (f *File) Shutdown(ctx context.Context) error {
|
|
errs := merror.New()
|
|
|
|
err := f.Basic.Shutdown(ctx)
|
|
errs.Append(err)
|
|
|
|
err = f.out.Close()
|
|
errs.Append(err)
|
|
|
|
return errs.ErrorOrNil()
|
|
}
|