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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
package bbolt
// See https://github.com/etcd-io/raft/blob/main/logger.go
import (
"fmt"
"io"
"log"
"os"
)
type Logger interface {
Debug(v ...interface{})
Debugf(format string, v ...interface{})
Error(v ...interface{})
Errorf(format string, v ...interface{})
Info(v ...interface{})
Infof(format string, v ...interface{})
Warning(v ...interface{})
Warningf(format string, v ...interface{})
Fatal(v ...interface{})
Fatalf(format string, v ...interface{})
Panic(v ...interface{})
Panicf(format string, v ...interface{})
}
func getDiscardLogger() Logger {
return discardLogger
}
var (
discardLogger = &DefaultLogger{Logger: log.New(io.Discard, "", 0)}
)
const (
calldepth = 2
)
// DefaultLogger is a default implementation of the Logger interface.
type DefaultLogger struct {
*log.Logger
debug bool
}
func (l *DefaultLogger) EnableTimestamps() {
l.SetFlags(l.Flags() | log.Ldate | log.Ltime)
}
func (l *DefaultLogger) EnableDebug() {
l.debug = true
}
func (l *DefaultLogger) Debug(v ...interface{}) {
if l.debug {
_ = l.Output(calldepth, header("DEBUG", fmt.Sprint(v...)))
}
}
func (l *DefaultLogger) Debugf(format string, v ...interface{}) {
if l.debug {
_ = l.Output(calldepth, header("DEBUG", fmt.Sprintf(format, v...)))
}
}
func (l *DefaultLogger) Info(v ...interface{}) {
_ = l.Output(calldepth, header("INFO", fmt.Sprint(v...)))
}
func (l *DefaultLogger) Infof(format string, v ...interface{}) {
_ = l.Output(calldepth, header("INFO", fmt.Sprintf(format, v...)))
}
func (l *DefaultLogger) Error(v ...interface{}) {
_ = l.Output(calldepth, header("ERROR", fmt.Sprint(v...)))
}
func (l *DefaultLogger) Errorf(format string, v ...interface{}) {
_ = l.Output(calldepth, header("ERROR", fmt.Sprintf(format, v...)))
}
func (l *DefaultLogger) Warning(v ...interface{}) {
_ = l.Output(calldepth, header("WARN", fmt.Sprint(v...)))
}
func (l *DefaultLogger) Warningf(format string, v ...interface{}) {
_ = l.Output(calldepth, header("WARN", fmt.Sprintf(format, v...)))
}
func (l *DefaultLogger) Fatal(v ...interface{}) {
_ = l.Output(calldepth, header("FATAL", fmt.Sprint(v...)))
os.Exit(1)
}
func (l *DefaultLogger) Fatalf(format string, v ...interface{}) {
_ = l.Output(calldepth, header("FATAL", fmt.Sprintf(format, v...)))
os.Exit(1)
}
func (l *DefaultLogger) Panic(v ...interface{}) {
l.Logger.Panic(v...)
}
func (l *DefaultLogger) Panicf(format string, v ...interface{}) {
l.Logger.Panicf(format, v...)
}
func header(lvl, msg string) string {
return fmt.Sprintf("%s: %s", lvl, msg)
}
|
