1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
package hclog
import (
"bytes"
"io"
)
type writer struct {
b bytes.Buffer
w io.Writer
color ColorOption
}
func newWriter(w io.Writer, color ColorOption) *writer {
return &writer{w: w, color: color}
}
func (w *writer) Flush(level Level) (err error) {
var unwritten = w.b.Bytes()
if w.color != ColorOff {
color := _levelToColor[level]
unwritten = []byte(color.Sprintf("%s", unwritten))
}
if lw, ok := w.w.(LevelWriter); ok {
_, err = lw.LevelWrite(level, unwritten)
} else {
_, err = w.w.Write(unwritten)
}
w.b.Reset()
return err
}
func (w *writer) Write(p []byte) (int, error) {
return w.b.Write(p)
}
func (w *writer) WriteByte(c byte) error {
return w.b.WriteByte(c)
}
func (w *writer) WriteString(s string) (int, error) {
return w.b.WriteString(s)
}
// LevelWriter is the interface that wraps the LevelWrite method.
type LevelWriter interface {
LevelWrite(level Level, p []byte) (n int, err error)
}
// LeveledWriter writes all log messages to the standard writer,
// except for log levels that are defined in the overrides map.
type LeveledWriter struct {
standard io.Writer
overrides map[Level]io.Writer
}
// NewLeveledWriter returns an initialized LeveledWriter.
//
// standard will be used as the default writer for all log levels,
// except for log levels that are defined in the overrides map.
func NewLeveledWriter(standard io.Writer, overrides map[Level]io.Writer) *LeveledWriter {
return &LeveledWriter{
standard: standard,
overrides: overrides,
}
}
// Write implements io.Writer.
func (lw *LeveledWriter) Write(p []byte) (int, error) {
return lw.standard.Write(p)
}
// LevelWrite implements LevelWriter.
func (lw *LeveledWriter) LevelWrite(level Level, p []byte) (int, error) {
w, ok := lw.overrides[level]
if !ok {
w = lw.standard
}
return w.Write(p)
}
|
