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
216
217
218
219
220
221
222
223
224
225
226
227
228
|
// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package repository
import (
"context"
"fmt"
"strings"
"time"
"code.gitea.io/gitea/models/db"
git_model "code.gitea.io/gitea/models/git"
repo_model "code.gitea.io/gitea/models/repo"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/notification"
repo_module "code.gitea.io/gitea/modules/repository"
"code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/modules/util"
)
// ErrForkAlreadyExist represents a "ForkAlreadyExist" kind of error.
type ErrForkAlreadyExist struct {
Uname string
RepoName string
ForkName string
}
// IsErrForkAlreadyExist checks if an error is an ErrForkAlreadyExist.
func IsErrForkAlreadyExist(err error) bool {
_, ok := err.(ErrForkAlreadyExist)
return ok
}
func (err ErrForkAlreadyExist) Error() string {
return fmt.Sprintf("repository is already forked by user [uname: %s, repo path: %s, fork path: %s]", err.Uname, err.RepoName, err.ForkName)
}
func (err ErrForkAlreadyExist) Unwrap() error {
return util.ErrAlreadyExist
}
// ForkRepoOptions contains the fork repository options
type ForkRepoOptions struct {
BaseRepo *repo_model.Repository
Name string
Description string
}
// ForkRepository forks a repository
func ForkRepository(ctx context.Context, doer, owner *user_model.User, opts ForkRepoOptions) (*repo_model.Repository, error) {
// Fork is prohibited, if user has reached maximum limit of repositories
if !owner.CanForkRepo() {
return nil, repo_model.ErrReachLimitOfRepo{
Limit: owner.MaxRepoCreation,
}
}
forkedRepo, err := repo_model.GetUserFork(ctx, opts.BaseRepo.ID, owner.ID)
if err != nil {
return nil, err
}
if forkedRepo != nil {
return nil, ErrForkAlreadyExist{
Uname: owner.Name,
RepoName: opts.BaseRepo.FullName(),
ForkName: forkedRepo.FullName(),
}
}
repo := &repo_model.Repository{
OwnerID: owner.ID,
Owner: owner,
OwnerName: owner.Name,
Name: opts.Name,
LowerName: strings.ToLower(opts.Name),
Description: opts.Description,
DefaultBranch: opts.BaseRepo.DefaultBranch,
IsPrivate: opts.BaseRepo.IsPrivate || opts.BaseRepo.Owner.Visibility == structs.VisibleTypePrivate,
IsEmpty: opts.BaseRepo.IsEmpty,
IsFork: true,
ForkID: opts.BaseRepo.ID,
}
oldRepoPath := opts.BaseRepo.RepoPath()
needsRollback := false
rollbackFn := func() {
if !needsRollback {
return
}
repoPath := repo_model.RepoPath(owner.Name, repo.Name)
if exists, _ := util.IsExist(repoPath); !exists {
return
}
// As the transaction will be failed and hence database changes will be destroyed we only need
// to delete the related repository on the filesystem
if errDelete := util.RemoveAll(repoPath); errDelete != nil {
log.Error("Failed to remove fork repo")
}
}
needsRollbackInPanic := true
defer func() {
panicErr := recover()
if panicErr == nil {
return
}
if needsRollbackInPanic {
rollbackFn()
}
panic(panicErr)
}()
err = db.WithTx(ctx, func(txCtx context.Context) error {
if err = repo_module.CreateRepositoryByExample(txCtx, doer, owner, repo, false, true); err != nil {
return err
}
if err = repo_model.IncrementRepoForkNum(txCtx, opts.BaseRepo.ID); err != nil {
return err
}
// copy lfs files failure should not be ignored
if err = git_model.CopyLFS(txCtx, repo, opts.BaseRepo); err != nil {
return err
}
needsRollback = true
repoPath := repo_model.RepoPath(owner.Name, repo.Name)
if stdout, _, err := git.NewCommand(txCtx,
"clone", "--bare").AddDynamicArguments(oldRepoPath, repoPath).
SetDescription(fmt.Sprintf("ForkRepository(git clone): %s to %s", opts.BaseRepo.FullName(), repo.FullName())).
RunStdBytes(&git.RunOpts{Timeout: 10 * time.Minute}); err != nil {
log.Error("Fork Repository (git clone) Failed for %v (from %v):\nStdout: %s\nError: %v", repo, opts.BaseRepo, stdout, err)
return fmt.Errorf("git clone: %w", err)
}
if err := repo_module.CheckDaemonExportOK(txCtx, repo); err != nil {
return fmt.Errorf("checkDaemonExportOK: %w", err)
}
if stdout, _, err := git.NewCommand(txCtx, "update-server-info").
SetDescription(fmt.Sprintf("ForkRepository(git update-server-info): %s", repo.FullName())).
RunStdString(&git.RunOpts{Dir: repoPath}); err != nil {
log.Error("Fork Repository (git update-server-info) failed for %v:\nStdout: %s\nError: %v", repo, stdout, err)
return fmt.Errorf("git update-server-info: %w", err)
}
if err = repo_module.CreateDelegateHooks(repoPath); err != nil {
return fmt.Errorf("createDelegateHooks: %w", err)
}
gitRepo, err := git.OpenRepository(txCtx, repo.RepoPath())
if err != nil {
return fmt.Errorf("OpenRepository: %w", err)
}
defer gitRepo.Close()
_, err = repo_module.SyncRepoBranchesWithRepo(txCtx, repo, gitRepo, doer.ID)
return err
})
needsRollbackInPanic = false
if err != nil {
rollbackFn()
return nil, err
}
// even if below operations failed, it could be ignored. And they will be retried
if err := repo_module.UpdateRepoSize(ctx, repo); err != nil {
log.Error("Failed to update size for repository: %v", err)
}
if err := repo_model.CopyLanguageStat(opts.BaseRepo, repo); err != nil {
log.Error("Copy language stat from oldRepo failed: %v", err)
}
gitRepo, err := git.OpenRepository(ctx, repo.RepoPath())
if err != nil {
log.Error("Open created git repository failed: %v", err)
} else {
defer gitRepo.Close()
if err := repo_module.SyncReleasesWithTags(repo, gitRepo); err != nil {
log.Error("Sync releases from git tags failed: %v", err)
}
}
notification.NotifyForkRepository(ctx, doer, opts.BaseRepo, repo)
return repo, nil
}
// ConvertForkToNormalRepository convert the provided repo from a forked repo to normal repo
func ConvertForkToNormalRepository(ctx context.Context, repo *repo_model.Repository) error {
err := db.WithTx(ctx, func(ctx context.Context) error {
repo, err := repo_model.GetRepositoryByID(ctx, repo.ID)
if err != nil {
return err
}
if !repo.IsFork {
return nil
}
if err := repo_model.DecrementRepoForkNum(ctx, repo.ForkID); err != nil {
log.Error("Unable to decrement repo fork num for old root repo %d of repository %-v whilst converting from fork. Error: %v", repo.ForkID, repo, err)
return err
}
repo.IsFork = false
repo.ForkID = 0
if err := repo_module.UpdateRepository(ctx, repo, false); err != nil {
log.Error("Unable to update repository %-v whilst converting from fork. Error: %v", repo, err)
return err
}
return nil
})
return err
}
|
