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
|
// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package log provides a universal logger for martian packages.
package log
import (
"fmt"
"log"
"sync"
)
const (
// Silent is a level that logs nothing.
Silent int = iota
// Error is a level that logs error logs.
Error
// Info is a level that logs error, and info logs.
Info
// Debug is a level that logs error, info, and debug logs.
Debug
)
// Default log level is Error.
var (
level = Error
lock sync.Mutex
)
// SetLevel sets the global log level.
func SetLevel(l int) {
lock.Lock()
defer lock.Unlock()
level = l
}
// Infof logs an info message.
func Infof(format string, args ...interface{}) {
lock.Lock()
defer lock.Unlock()
if level < Info {
return
}
msg := fmt.Sprintf("INFO: %s", format)
if len(args) > 0 {
msg = fmt.Sprintf(msg, args...)
}
log.Println(msg)
}
// Debugf logs a debug message.
func Debugf(format string, args ...interface{}) {
lock.Lock()
defer lock.Unlock()
if level < Debug {
return
}
msg := fmt.Sprintf("DEBUG: %s", format)
if len(args) > 0 {
msg = fmt.Sprintf(msg, args...)
}
log.Println(msg)
}
// Errorf logs an error message.
func Errorf(format string, args ...interface{}) {
lock.Lock()
defer lock.Unlock()
if level < Error {
return
}
msg := fmt.Sprintf("ERROR: %s", format)
if len(args) > 0 {
msg = fmt.Sprintf(msg, args...)
}
log.Println(msg)
}
|
