mirror of
https://github.com/rclone/rclone.git
synced 2024-12-05 14:50:57 +01:00
84 lines
1.8 KiB
Go
84 lines
1.8 KiB
Go
package log
|
|
|
|
import (
|
|
"io"
|
|
"time"
|
|
|
|
"github.com/pengsrc/go-shared/buffer"
|
|
"github.com/pengsrc/go-shared/convert"
|
|
)
|
|
|
|
// LevelWriter defines as interface a writer may implement in order
|
|
// to receive level information with payload.
|
|
type LevelWriter interface {
|
|
io.Writer
|
|
WriteLevel(level Level, message []byte) (n int, err error)
|
|
}
|
|
|
|
// Flusher defines a interface with Flush() method.
|
|
type Flusher interface {
|
|
Flush() error
|
|
}
|
|
|
|
// StandardWriter implements io.Writer{} and LevelWriter{} interface.
|
|
type StandardWriter struct {
|
|
w io.Writer
|
|
ew io.Writer // Writer for WARN, ERROR, FATAL, PANIC
|
|
|
|
dl Level // Default level
|
|
pid int
|
|
}
|
|
|
|
// Write implements the io.Writer{} interface.
|
|
func (sw *StandardWriter) Write(p []byte) (n int, err error) {
|
|
return sw.WriteLevel(sw.dl, p)
|
|
}
|
|
|
|
// WriteLevel implements the LevelWriter{} interface.
|
|
func (sw *StandardWriter) WriteLevel(level Level, message []byte) (n int, err error) {
|
|
levelString := level.String()
|
|
if len(levelString) == 4 {
|
|
levelString = " " + levelString
|
|
}
|
|
|
|
buf := buffer.GlobalBytesPool().Get()
|
|
defer buf.Free()
|
|
|
|
buf.AppendString("[")
|
|
buf.AppendTime(time.Now().UTC(), convert.ISO8601Milli)
|
|
buf.AppendString(" #")
|
|
buf.AppendInt(int64(sw.pid))
|
|
buf.AppendString("] ")
|
|
buf.AppendString(levelString)
|
|
buf.AppendString(" -- : ")
|
|
buf.AppendBytes(message)
|
|
buf.AppendString("\n")
|
|
|
|
if sw.ew != nil {
|
|
if level > MuteLevel && level <= WarnLevel {
|
|
n, err = sw.ew.Write(buf.Bytes())
|
|
if err != nil {
|
|
return
|
|
}
|
|
}
|
|
}
|
|
return sw.w.Write(buf.Bytes())
|
|
}
|
|
|
|
// Flush implements the Flusher{} interface.
|
|
func (sw *StandardWriter) Flush() (err error) {
|
|
if flusher, ok := sw.w.(Flusher); ok {
|
|
err = flusher.Flush()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
if sw.ew != nil {
|
|
if flusher, ok := sw.ew.(Flusher); ok {
|
|
err = flusher.Flush()
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|