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
|
package logger
import (
"fmt"
"io"
"log"
"log/syslog"
"os"
"sync"
"time"
"gitlab.com/gitlab-org/gitlab-shell/go/internal/config"
)
var (
logWriter io.Writer
bootstrapLogger *log.Logger
pid int
mutex sync.Mutex
ProgName string
)
func Configure(cfg *config.Config) error {
mutex.Lock()
defer mutex.Unlock()
pid = os.Getpid()
var err error
logWriter, err = os.OpenFile(cfg.LogFile, os.O_WRONLY|os.O_APPEND, 0)
return err
}
func logPrint(msg string, err error) {
mutex.Lock()
defer mutex.Unlock()
if logWriter == nil {
bootstrapLogPrint(msg, err)
return
}
// Emulate the existing log format of gitlab-shell
t := time.Now().Format("2006-01-02T15:04:05.999999")
prefix := fmt.Sprintf("E, [%s #%d] ERROR -- : %s:", t, pid, ProgName)
fmt.Fprintf(logWriter, "%s %s: %v\n", prefix, msg, err)
}
func Fatal(msg string, err error) {
logPrint(msg, err)
// We don't show the error to the end user because it can leak
// information that is private to the GitLab server.
fmt.Fprintf(os.Stderr, "%s: fatal: %s\n", ProgName, msg)
os.Exit(1)
}
// If our log file is not available we want to log somewhere else, but
// not to standard error because that leaks information to the user. This
// function attemps to log to syslog.
//
// We assume the logging mutex is already locked.
func bootstrapLogPrint(msg string, err error) {
if bootstrapLogger == nil {
var err error
bootstrapLogger, err = syslog.NewLogger(syslog.LOG_ERR|syslog.LOG_USER, 0)
if err != nil {
// The message will not be logged.
return
}
}
bootstrapLogger.Print(ProgName+":", msg+":", err)
}
|
