-
Notifications
You must be signed in to change notification settings - Fork 0
/
manager.go
174 lines (146 loc) · 3.46 KB
/
manager.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
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
package storage
import (
"context"
stdos "os"
"path"
"github.com/go-git/go-git/v5"
"github.com/go-git/go-git/v5/config"
"github.com/pkg/errors"
"github.com/UsingCoding/gostore/internal/common/maybe"
"github.com/UsingCoding/gostore/internal/gostore/app/storage"
)
const (
remoteName = "origin"
)
func NewManager() storage.Manager {
return &manager{}
}
type manager struct{}
func (m *manager) Init(
_ context.Context,
p string,
remote maybe.Maybe[string],
t storage.Type,
) (storage.Storage, error) {
ok, err := exists(p)
if err != nil {
return nil, err
}
if ok {
return nil, errors.Errorf("path %s already exists", p)
}
// check existence of parent directory
if e, err2 := exists(path.Dir(p)); !e || err2 != nil {
if err2 != nil {
return nil, err2
}
err2 = stdos.MkdirAll(path.Dir(p), stdos.ModePerm)
if err2 != nil {
return nil, errors.Wrapf(err2, "failed to create subdirectories for path %s", p)
}
}
switch t {
case storage.GITType:
return m.initGitStorage(p, remote)
default:
return nil, errors.Errorf("unsupported storage type %s", t)
}
}
func (m *manager) Clone(ctx context.Context, p string, remote string, t storage.Type) (storage.Storage, error) {
ok, err := exists(p)
if err != nil {
return nil, err
}
if ok {
return nil, errors.Errorf("path %s already exists", p)
}
// check existence of parent directory
if e, err2 := exists(path.Dir(p)); !e || err2 != nil {
if err2 != nil {
return nil, err2
}
err2 = stdos.MkdirAll(path.Dir(p), stdos.ModePerm)
if err2 != nil {
return nil, errors.Wrapf(err2, "failed to create subdirectories for path %s", p)
}
}
switch t {
case storage.GITType:
return m.cloneGitStorage(ctx, p, remote)
default:
return nil, errors.Errorf("unsupported storage type %s", t)
}
}
func (m *manager) Use(_ context.Context, p string) (storage.Storage, error) {
ok, err := exists(p)
if err != nil {
return nil, err
}
if !ok {
return nil, errors.Errorf("path %s not exists", p)
}
repo, err := git.PlainOpen(p)
if err != nil {
return nil, errors.Wrap(err, "failed to open repo")
}
return &gitStorage{
repo: repo,
repoDir: p,
}, nil
}
func (m *manager) Remove(ctx context.Context, p string) error {
_, err := m.Use(ctx, p)
if err != nil {
return err
}
err = stdos.RemoveAll(p)
return errors.Wrapf(err, "failed to remote storage at %s", p)
}
func (m *manager) initGitStorage(p string, remote maybe.Maybe[string]) (storage.Storage, error) {
repo, err := git.PlainInit(p, false)
if err != nil {
return nil, errors.New("failed to init store repo")
}
if maybe.Valid(remote) {
_, err2 := repo.CreateRemote(&config.RemoteConfig{
Name: remoteName,
URLs: []string{maybe.Just(remote)},
})
if err2 != nil {
return nil, errors.Wrapf(err2, "failed to add remote %s to repo", maybe.Just(remote))
}
}
return &gitStorage{
repo: repo,
repoDir: p,
}, nil
}
func (m *manager) cloneGitStorage(ctx context.Context, p string, remote string) (storage.Storage, error) {
repo, err := git.PlainCloneContext(
ctx,
p,
false,
&git.CloneOptions{
URL: remote,
Auth: nil, // use ssh-agent as auth
RemoteName: remoteName,
},
)
if err != nil {
return nil, errors.Wrap(err, "failed to clone store repo")
}
return &gitStorage{
repo: repo,
repoDir: p,
}, nil
}
func exists(path string) (bool, error) {
_, err := stdos.Stat(path)
if err == nil {
return true, nil
}
if stdos.IsNotExist(err) {
return false, nil
}
return false, err
}