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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
package filecollector
import (
"archive/tar"
"context"
"io"
"path/filepath"
"strings"
"testing"
"github.com/go-git/go-billy/v5"
"github.com/go-git/go-billy/v5/memfs"
git "github.com/go-git/go-git/v5"
"github.com/go-git/go-git/v5/plumbing/cache"
"github.com/go-git/go-git/v5/plumbing/format/gitignore"
"github.com/go-git/go-git/v5/plumbing/format/index"
"github.com/go-git/go-git/v5/storage/filesystem"
"github.com/stretchr/testify/assert"
)
type memoryFs struct {
billy.Filesystem
}
func (mfs *memoryFs) walk(root string, fn filepath.WalkFunc) error {
dir, err := mfs.ReadDir(root)
if err != nil {
return err
}
for i := 0; i < len(dir); i++ {
filename := filepath.Join(root, dir[i].Name())
err = fn(filename, dir[i], nil)
if dir[i].IsDir() {
if err == filepath.SkipDir {
err = nil
} else if err := mfs.walk(filename, fn); err != nil {
return err
}
}
if err != nil {
return err
}
}
return nil
}
func (mfs *memoryFs) Walk(root string, fn filepath.WalkFunc) error {
stat, err := mfs.Lstat(root)
if err != nil {
return err
}
err = fn(strings.Join([]string{root, "."}, string(filepath.Separator)), stat, nil)
if err != nil {
return err
}
return mfs.walk(root, fn)
}
func (mfs *memoryFs) OpenGitIndex(path string) (*index.Index, error) {
f, _ := mfs.Filesystem.Chroot(filepath.Join(path, ".git"))
storage := filesystem.NewStorage(f, cache.NewObjectLRUDefault())
i, err := storage.Index()
if err != nil {
return nil, err
}
return i, nil
}
func (mfs *memoryFs) Open(path string) (io.ReadCloser, error) {
return mfs.Filesystem.Open(path)
}
func (mfs *memoryFs) Readlink(path string) (string, error) {
return mfs.Filesystem.Readlink(path)
}
func TestIgnoredTrackedfile(t *testing.T) {
fs := memfs.New()
_ = fs.MkdirAll("mygitrepo/.git", 0o777)
dotgit, _ := fs.Chroot("mygitrepo/.git")
worktree, _ := fs.Chroot("mygitrepo")
repo, _ := git.Init(filesystem.NewStorage(dotgit, cache.NewObjectLRUDefault()), worktree)
f, _ := worktree.Create(".gitignore")
_, _ = f.Write([]byte(".*\n"))
f.Close()
// This file shouldn't be in the tar
f, _ = worktree.Create(".env")
_, _ = f.Write([]byte("test=val1\n"))
f.Close()
w, _ := repo.Worktree()
// .gitignore is in the tar after adding it to the index
_, _ = w.Add(".gitignore")
tmpTar, _ := fs.Create("temp.tar")
tw := tar.NewWriter(tmpTar)
ps, _ := gitignore.ReadPatterns(worktree, []string{})
ignorer := gitignore.NewMatcher(ps)
fc := &FileCollector{
Fs: &memoryFs{Filesystem: fs},
Ignorer: ignorer,
SrcPath: "mygitrepo",
SrcPrefix: "mygitrepo" + string(filepath.Separator),
Handler: &TarCollector{
TarWriter: tw,
},
}
err := fc.Fs.Walk("mygitrepo", fc.CollectFiles(context.Background(), []string{}))
assert.NoError(t, err, "successfully collect files")
tw.Close()
_, _ = tmpTar.Seek(0, io.SeekStart)
tr := tar.NewReader(tmpTar)
h, err := tr.Next()
assert.NoError(t, err, "tar must not be empty")
assert.Equal(t, ".gitignore", h.Name)
_, err = tr.Next()
assert.ErrorIs(t, err, io.EOF, "tar must only contain one element")
}
func TestSymlinks(t *testing.T) {
fs := memfs.New()
_ = fs.MkdirAll("mygitrepo/.git", 0o777)
dotgit, _ := fs.Chroot("mygitrepo/.git")
worktree, _ := fs.Chroot("mygitrepo")
repo, _ := git.Init(filesystem.NewStorage(dotgit, cache.NewObjectLRUDefault()), worktree)
// This file shouldn't be in the tar
f, err := worktree.Create(".env")
assert.NoError(t, err)
_, err = f.Write([]byte("test=val1\n"))
assert.NoError(t, err)
f.Close()
err = worktree.Symlink(".env", "test.env")
assert.NoError(t, err)
w, err := repo.Worktree()
assert.NoError(t, err)
// .gitignore is in the tar after adding it to the index
_, err = w.Add(".env")
assert.NoError(t, err)
_, err = w.Add("test.env")
assert.NoError(t, err)
tmpTar, _ := fs.Create("temp.tar")
tw := tar.NewWriter(tmpTar)
ps, _ := gitignore.ReadPatterns(worktree, []string{})
ignorer := gitignore.NewMatcher(ps)
fc := &FileCollector{
Fs: &memoryFs{Filesystem: fs},
Ignorer: ignorer,
SrcPath: "mygitrepo",
SrcPrefix: "mygitrepo" + string(filepath.Separator),
Handler: &TarCollector{
TarWriter: tw,
},
}
err = fc.Fs.Walk("mygitrepo", fc.CollectFiles(context.Background(), []string{}))
assert.NoError(t, err, "successfully collect files")
tw.Close()
_, _ = tmpTar.Seek(0, io.SeekStart)
tr := tar.NewReader(tmpTar)
h, err := tr.Next()
files := map[string]tar.Header{}
for err == nil {
files[h.Name] = *h
h, err = tr.Next()
}
assert.Equal(t, ".env", files[".env"].Name)
assert.Equal(t, "test.env", files["test.env"].Name)
assert.Equal(t, ".env", files["test.env"].Linkname)
assert.ErrorIs(t, err, io.EOF, "tar must be read cleanly to EOF")
}
|
