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
|
package main
import (
"io"
"os"
"path/filepath"
"github.com/fatih/color"
"gopkg.in/src-d/go-git.v4"
)
func main() {
checkArgs()
url := os.Args[1]
directory := os.Args[2]
r := git.NewMemoryRepository()
// Clone the given repository, using depth we create a shallow clone :
// > git clone <url> --depth 1
color.Blue("git clone %s --depth 1 %s", url, directory)
err := r.Clone(&git.CloneOptions{
URL: url,
Depth: 1,
})
checkIfError(err)
// ... retrieving the branch being pointed by HEAD
ref, err := r.Head()
checkIfError(err)
// ... retrieving the commit object
commit, err := r.Commit(ref.Hash())
checkIfError(err)
// ... we get all the files from the commit
files, err := commit.Files()
checkIfError(err)
// ... now we iterate the files to save to disk
err = files.ForEach(func(f *git.File) error {
abs := filepath.Join(directory, f.Name)
dir := filepath.Dir(abs)
os.MkdirAll(dir, 0777)
file, err := os.Create(abs)
if err != nil {
return err
}
defer file.Close()
r, err := f.Reader()
if err != nil {
return err
}
defer r.Close()
if err := file.Chmod(f.Mode); err != nil {
return err
}
_, err = io.Copy(file, r)
return err
})
checkIfError(err)
}
func checkIfError(err error) {
if err == nil {
return
}
color.Red("error: %s", err)
os.Exit(1)
}
func checkArgs() {
if len(os.Args) < 3 {
color.Cyan("Usage: %s <url> <directory>", os.Args[0])
os.Exit(1)
}
}
|
