forgejo/modules/repository/fork.go
zeripath 5a8dd96b33
Ensure that git daemon export ok is created for mirrors ()
* Ensure that git daemon export ok is created for mirrors

There is an issue with  where it appears that create repo requires that the
repo does not exist. This causes  where an error is reported because of this.

This PR fixes this and also runs update-server-info for mirrors and generated repos.

Fix 

Signed-off-by: Andrew Thornton <art27@cantab.net>
2021-10-13 20:47:02 +01:00

171 lines
4.7 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.NewCommandContext(ctx,
"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 err := repo.CheckDaemonExportOK(ctx); err != nil {
return fmt.Errorf("checkDaemonExportOK: %v", err)
}
if stdout, err := git.NewCommandContext(ctx, "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
}