/
tar.go
63 lines (52 loc) · 1.16 KB
/
tar.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
/* 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 client
import (
"archive/tar"
"bytes"
"io"
"io/ioutil"
"os"
"path/filepath"
"strings"
)
// Tar ...
func Tar(buildDir string) (io.Reader, error) {
files := make(map[string]os.FileInfo)
buf := new(bytes.Buffer)
tw := tar.NewWriter(buf)
err := filepath.Walk(buildDir, func(path string, f os.FileInfo, err error) error {
if f.IsDir() {
return nil
}
files[path] = f
return nil
})
if err != nil {
return nil, err
}
for path, file := range files {
hdr := &tar.Header{
Name: strings.TrimPrefix(strings.Replace(path, buildDir, "", -1), string(filepath.Separator)),
Mode: int64(file.Mode()),
Size: file.Size(),
}
err = tw.WriteHeader(hdr)
if err != nil {
return nil, err
}
data, err := ioutil.ReadFile(path)
if err != nil {
return nil, err
}
_, err = tw.Write(data)
if err != nil {
return nil, err
}
}
if err := tw.Close(); err != nil {
return nil, err
}
return bytes.NewReader(buf.Bytes()), nil
}