-
Notifications
You must be signed in to change notification settings - Fork 649
/
log.go
133 lines (108 loc) · 2.87 KB
/
log.go
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
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
// Copyright (C) 2019-2022, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package logging
import (
"io"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
)
var _ Logger = (*log)(nil)
type log struct {
wrappedCores []WrappedCore
internalLogger *zap.Logger
}
type WrappedCore struct {
Core zapcore.Core
Writer io.WriteCloser
WriterDisabled bool
AtomicLevel zap.AtomicLevel
}
func NewWrappedCore(level Level, rw io.WriteCloser, encoder zapcore.Encoder) WrappedCore {
atomicLevel := zap.NewAtomicLevelAt(zapcore.Level(level))
core := zapcore.NewCore(encoder, zapcore.AddSync(rw), atomicLevel)
return WrappedCore{AtomicLevel: atomicLevel, Core: core, Writer: rw}
}
func newZapLogger(prefix string, wrappedCores ...WrappedCore) *zap.Logger {
cores := make([]zapcore.Core, len(wrappedCores))
for i, wc := range wrappedCores {
cores[i] = wc.Core
}
core := zapcore.NewTee(cores...)
logger := zap.New(core, zap.AddCaller(), zap.AddCallerSkip(2))
if prefix != "" {
logger = logger.Named(prefix)
}
return logger
}
// New returns a new logger set up according to [config]
func NewLogger(prefix string, wrappedCores ...WrappedCore) Logger {
return &log{
internalLogger: newZapLogger(prefix, wrappedCores...),
wrappedCores: wrappedCores,
}
}
// TODO: return errors here
func (l *log) Write(p []byte) (int, error) {
for _, wc := range l.wrappedCores {
if wc.WriterDisabled {
continue
}
_, _ = wc.Writer.Write(p)
}
return len(p), nil
}
// TODO: return errors here
func (l *log) Stop() {
for _, wc := range l.wrappedCores {
_ = wc.Writer.Close()
}
}
// Should only be called from [Level] functions.
func (l *log) log(level Level, msg string, fields ...zap.Field) {
if ce := l.internalLogger.Check(zapcore.Level(level), msg); ce != nil {
ce.Write(fields...)
}
}
func (l *log) Fatal(msg string, fields ...zap.Field) {
l.log(Fatal, msg, fields...)
}
func (l *log) Error(msg string, fields ...zap.Field) {
l.log(Error, msg, fields...)
}
func (l *log) Warn(msg string, fields ...zap.Field) {
l.log(Warn, msg, fields...)
}
func (l *log) Info(msg string, fields ...zap.Field) {
l.log(Info, msg, fields...)
}
func (l *log) Trace(msg string, fields ...zap.Field) {
l.log(Trace, msg, fields...)
}
func (l *log) Debug(msg string, fields ...zap.Field) {
l.log(Debug, msg, fields...)
}
func (l *log) Verbo(msg string, fields ...zap.Field) {
l.log(Verbo, msg, fields...)
}
func (l *log) StopOnPanic() {
if r := recover(); r != nil {
l.Fatal("panicking", zap.Any("reason", r), zap.Stack("from"))
l.Stop()
panic(r)
}
}
func (l *log) RecoverAndPanic(f func()) {
defer l.StopOnPanic()
f()
}
func (l *log) stopAndExit(exit func()) {
if r := recover(); r != nil {
l.Fatal("panicking", zap.Any("reason", r), zap.Stack("from"))
l.Stop()
exit()
}
}
func (l *log) RecoverAndExit(f, exit func()) {
defer l.stopAndExit(exit)
f()
}