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
|
package cmd
import (
"context"
"fmt"
"io"
stdlog "log"
"os"
"runtime"
"time"
"github.com/hairyhenderson/gomplate/v3/env"
"github.com/rs/zerolog"
zlog "github.com/rs/zerolog/log"
"golang.org/x/term"
)
func logFormat(out io.Writer) string {
defaultFormat := "json"
if f, ok := out.(*os.File); ok && term.IsTerminal(int(f.Fd())) {
defaultFormat = "console"
}
return env.Getenv("GOMPLATE_LOG_FORMAT", defaultFormat)
}
func fmtField(fname string) func(i interface{}) string {
return func(i interface{}) string {
if i == nil || i == "" {
return ""
}
if s, ok := i.(string); ok {
for _, c := range s {
if c <= 0x20 || c == '\\' || c == '"' {
return fmt.Sprintf("%s=%q", fname, i)
}
}
}
return fmt.Sprintf("%s=%s", fname, i)
}
}
func createLogger(format string, out io.Writer) zerolog.Logger {
zerolog.MessageFieldName = "msg"
l := zlog.Logger.Output(out)
stdlogger := l.With().Bool("stdlog", true).Logger()
stdlog.SetFlags(0)
switch format {
case "console":
useColour := false
if f, ok := out.(*os.File); ok && term.IsTerminal(int(f.Fd())) && runtime.GOOS != "windows" {
useColour = true
}
l = l.Output(zerolog.ConsoleWriter{
Out: out,
NoColor: !useColour,
TimeFormat: "15:04:05",
})
stdlogger = stdlogger.Output(zerolog.ConsoleWriter{
Out: out,
NoColor: !useColour,
FormatLevel: func(i interface{}) string { return "" },
})
case "logfmt":
w := zerolog.ConsoleWriter{
Out: out,
NoColor: true,
FormatMessage: fmtField(zerolog.MessageFieldName),
FormatLevel: fmtField(zerolog.LevelFieldName),
FormatTimestamp: fmtField(zerolog.TimestampFieldName),
}
l = l.Output(w)
stdlogger = stdlogger.Output(w)
case "simple":
w := zerolog.ConsoleWriter{
Out: out,
NoColor: true,
FormatLevel: func(i interface{}) string { return "" },
FormatTimestamp: func(i interface{}) string { return "" },
}
l = l.Output(w)
stdlogger = stdlogger.Output(w)
}
stdlog.SetOutput(stdlogger)
return l
}
func initLogger(ctx context.Context, out io.Writer) context.Context {
// default to warn level
zerolog.SetGlobalLevel(zerolog.WarnLevel)
zerolog.DurationFieldUnit = time.Second
l := createLogger(logFormat(out), out)
return l.WithContext(ctx)
}
|
