-
Notifications
You must be signed in to change notification settings - Fork 464
/
copy.go
123 lines (97 loc) · 2.03 KB
/
copy.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
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package copy //nolint:predeclared
import (
"io"
"io/ioutil"
"os"
"path"
)
// File copies the `src` file to the `dst` file.
func File(src, dst string, setters ...Option) error {
var (
err error
s *os.File
d *os.File
info os.FileInfo
options Options
)
for _, setter := range setters {
setter(&options)
}
if s, err = os.Open(src); err != nil {
return err
}
//nolint:errcheck
defer s.Close()
if d, err = os.Create(dst); err != nil {
return err
}
//nolint:errcheck
defer d.Close()
//nolint:errcheck
defer d.Sync()
if _, err = io.Copy(d, s); err != nil {
return err
}
if info, err = os.Stat(src); err != nil {
return err
}
mode := info.Mode()
if options.Mode != 0 {
mode = options.Mode
}
return os.Chmod(dst, mode)
}
// Dir copies the `src` directory to the `dst` directory.
func Dir(src, dst string, setters ...Option) error {
var (
err error
files []os.FileInfo
info os.FileInfo
options Options
)
for _, setter := range setters {
setter(&options)
}
if info, err = os.Stat(src); err != nil {
return err
}
mode := info.Mode()
if options.Mode != 0 {
mode = options.Mode
}
if err = os.MkdirAll(dst, mode); err != nil {
return err
}
if files, err = ioutil.ReadDir(src); err != nil {
return err
}
for _, file := range files {
s := path.Join(src, file.Name())
d := path.Join(dst, file.Name())
if file.IsDir() {
if err = Dir(s, d, setters...); err != nil {
return err
}
} else {
if err = File(s, d, setters...); err != nil {
return err
}
}
}
return nil
}
// Option represents copy option.
type Option func(o *Options)
// Options represents copy options.
type Options struct {
Mode os.FileMode
}
// WithMode sets destination files filemode.
func WithMode(m os.FileMode) Option {
return func(o *Options) {
o.Mode = m
}
}