forgejo/modules/repository/fork.go
zeripath 9302eba971
DBContext is just a Context (#17100)
* DBContext is just a Context

This PR removes some of the specialness from the DBContext and makes it context
This allows us to simplify the GetEngine code to wrap around any context in future
and means that we can change our loadRepo(e Engine) functions to simply take contexts.

Signed-off-by: Andrew Thornton <art27@cantab.net>

* fix unit tests

Signed-off-by: Andrew Thornton <art27@cantab.net>

* another place that needs to set the initial context

Signed-off-by: Andrew Thornton <art27@cantab.net>

* avoid race

Signed-off-by: Andrew Thornton <art27@cantab.net>

* change attachment error

Signed-off-by: Andrew Thornton <art27@cantab.net>
2021-09-23 23:45:36 +08:00

168 lines
4.6 KiB
Go

// Copyright 2019 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package repository
import (
"context"
"fmt"
"strings"
"time"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/modules/util"
)
// ForkRepository forks a repository
func ForkRepository(doer, owner *models.User, opts models.ForkRepoOptions) (_ *models.Repository, err error) {
forkedRepo, err := opts.BaseRepo.GetUserFork(owner.ID)
if err != nil {
return nil, err
}
if forkedRepo != nil {
return nil, models.ErrForkAlreadyExist{
Uname: owner.Name,
RepoName: opts.BaseRepo.FullName(),
ForkName: forkedRepo.FullName(),
}
}
repo := &models.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 := models.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(func(ctx context.Context) error {
if err = models.CreateRepository(ctx, doer, owner, repo, false); err != nil {
return err
}
if err = models.IncrementRepoForkNum(ctx, opts.BaseRepo.ID); err != nil {
return err
}
// copy lfs files failure should not be ignored
if err = models.CopyLFS(ctx, repo, opts.BaseRepo); err != nil {
return err
}
needsRollback = true
repoPath := models.RepoPath(owner.Name, repo.Name)
if stdout, err := git.NewCommand(
"clone", "--bare", oldRepoPath, repoPath).
SetDescription(fmt.Sprintf("ForkRepository(git clone): %s to %s", opts.BaseRepo.FullName(), repo.FullName())).
RunInDirTimeout(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: %v", err)
}
if stdout, err := git.NewCommand("update-server-info").
SetDescription(fmt.Sprintf("ForkRepository(git update-server-info): %s", repo.FullName())).
RunInDir(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: %v", err)
}
if err = createDelegateHooks(repoPath); err != nil {
return fmt.Errorf("createDelegateHooks: %v", err)
}
return nil
})
needsRollbackInPanic = false
if err != nil {
rollbackFn()
return nil, err
}
// even if below operations failed, it could be ignored. And they will be retried
ctx := db.DefaultContext
if err := repo.UpdateSize(ctx); err != nil {
log.Error("Failed to update size for repository: %v", err)
}
if err := models.CopyLanguageStat(opts.BaseRepo, repo); err != nil {
log.Error("Copy language stat from oldRepo failed")
}
return repo, nil
}
// ConvertForkToNormalRepository convert the provided repo from a forked repo to normal repo
func ConvertForkToNormalRepository(repo *models.Repository) error {
err := db.WithTx(func(ctx context.Context) error {
repo, err := models.GetRepositoryByIDCtx(ctx, repo.ID)
if err != nil {
return err
}
if !repo.IsFork {
return nil
}
if err := models.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 := models.UpdateRepositoryCtx(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
}