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
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
package git
import (
"errors"
"fmt"
"io"
"github.com/go-git/go-git/v5"
"github.com/go-git/go-git/v5/plumbing"
"github.com/go-git/go-git/v5/plumbing/object"
)
var ()
var (
MissingRefErr = errors.New("Reference not found")
TreeForFileErr = errors.New("Trying to get tree of a file")
)
type (
GitRepository struct {
path string
repository *git.Repository
ref plumbing.Hash
// this is setRef when ref is setRef
setRef bool
}
)
func OpenRepository(dir string) (*GitRepository, error) {
g := &GitRepository{
path: dir,
}
repo, err := git.PlainOpen(dir)
if err != nil {
return nil, err
}
g.repository = repo
return g, nil
}
func (g *GitRepository) SetRef(ref string) error {
if ref == "" {
head, err := g.repository.Head()
if err != nil {
return errors.Join(MissingRefErr, err)
}
g.ref = head.Hash()
} else {
hash, err := g.repository.ResolveRevision(plumbing.Revision(ref))
if err != nil {
return errors.Join(MissingRefErr, err)
}
g.ref = *hash
}
g.setRef = true
return nil
}
func (g *GitRepository) Path() string {
return g.path
}
func (g *GitRepository) LastCommit() (*object.Commit, error) {
err := g.validateRef()
if err != nil {
return nil, err
}
c, err := g.repository.CommitObject(g.ref)
if err != nil {
return nil, err
}
return c, nil
}
func (g *GitRepository) Commits() ([]*object.Commit, error) {
err := g.validateRef()
if err != nil {
return nil, err
}
ci, err := g.repository.Log(&git.LogOptions{From: g.ref})
if err != nil {
return nil, fmt.Errorf("commits from ref: %w", err)
}
commits := []*object.Commit{}
// TODO: for now only load first 1000
for x := 0; x < 1000; x++ {
c, err := ci.Next()
if err != nil && errors.Is(err, io.EOF) {
break
} else if err != nil {
return nil, err
}
commits = append(commits, c)
}
return commits, nil
}
func (g *GitRepository) Head() (*plumbing.Reference, error) {
return g.repository.Head()
}
func (g *GitRepository) Tags() ([]*object.Tag, error) {
ti, err := g.repository.TagObjects()
if err != nil {
return nil, err
}
tags := []*object.Tag{}
err = ti.ForEach(func(t *object.Tag) error {
tags = append(tags, t)
return nil
})
if err != nil {
return nil, err
}
return tags, nil
}
func (g *GitRepository) Branches() ([]*plumbing.Reference, error) {
bs, err := g.repository.Branches()
if err != nil {
return nil, err
}
branches := []*plumbing.Reference{}
err = bs.ForEach(func(ref *plumbing.Reference) error {
branches = append(branches, ref)
return nil
})
if err != nil {
return nil, err
}
return branches, nil
}
func (g *GitRepository) Tree(path string) (*object.Tree, error) {
err := g.validateRef()
if err != nil {
return nil, err
}
c, err := g.repository.CommitObject(g.ref)
if err != nil {
return nil, err
}
tree, err := c.Tree()
if err != nil {
return nil, err
}
if path == "" {
return tree, nil
} else {
o, err := tree.FindEntry(path)
if err != nil {
return nil, err
}
if !o.Mode.IsFile() {
subtree, err := tree.Tree(path)
if err != nil {
return nil, err
}
return subtree, nil
} else {
return nil, TreeForFileErr
}
}
}
func (g *GitRepository) validateRef() error {
if !g.setRef {
return g.SetRef("")
}
return nil
}
func (g *GitRepository) FileContent(path string) (string, error) {
c, err := g.repository.CommitObject(g.ref)
if err != nil {
return "", err
}
tree, err := c.Tree()
if err != nil {
return "", err
}
file, err := tree.File(path)
if err != nil {
return "", err
}
isbin, err := file.IsBinary()
if err != nil {
return "", err
}
if !isbin {
return file.Contents()
} else {
return "Binary file", nil
}
}
|
