/
utilconfig.go
91 lines (76 loc) · 1.92 KB
/
utilconfig.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
/*
* Copyright 1999-2018 Alibaba Group Holding Ltd.
* 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 nacos
import (
"bytes"
"errors"
"os"
"os/exec"
"os/user"
"path/filepath"
"runtime"
"strings"
)
var DNSDomains = make(map[string]string)
var DNSTTL uint32 = 1
func Exist(path string) bool {
_, err := os.Stat(path)
return err == nil
}
func GetCurrentDirectory() string {
dir, err := filepath.Abs(filepath.Dir(os.Args[0]))
if err != nil {
}
return dir
}
func Home() string {
user2, err := user.Current()
if nil == err {
return user2.HomeDir
}
if "windows" == runtime.GOOS {
return homeWindows()
}
// Unix-like system, so just assume Unix
return homeUnix()
}
func homeUnix() string {
// First prefer the HOME environmental variable
if home := os.Getenv("HOME"); home != "" {
return home
}
// If that fails, try the shell
var stdout bytes.Buffer
cmd := exec.Command("sh", "-c", "eval echo ~$USER")
cmd.Stdout = &stdout
if err := cmd.Run(); err != nil {
panic(err)
}
result := strings.TrimSpace(stdout.String())
if result == "" {
panic(errors.New("blank output when reading home directory"))
}
return result
}
func homeWindows() string {
drive := os.Getenv("HOMEDRIVE")
path := os.Getenv("HOMEPATH")
home := drive + path
if drive == "" || path == "" {
home = os.Getenv("USERPROFILE")
}
if home == "" {
panic(errors.New("HOMEDRIVE, HOMEPATH, and USERPROFILE are blank"))
}
return home
}