2020-01-12 20:11:17 +08:00
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// Copyright 2019 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package repository
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import (
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2021-09-23 23:45:36 +08:00
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"context"
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"fmt"
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"strings"
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"time"
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"code.gitea.io/gitea/models"
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"code.gitea.io/gitea/models/db"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/notification"
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repo_module "code.gitea.io/gitea/modules/repository"
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"code.gitea.io/gitea/modules/structs"
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"code.gitea.io/gitea/modules/util"
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)
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// ForkRepository forks a repository
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func ForkRepository(doer, owner *models.User, opts models.ForkRepoOptions) (_ *models.Repository, err error) {
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forkedRepo, err := opts.BaseRepo.GetUserFork(owner.ID)
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if err != nil {
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return nil, err
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}
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if forkedRepo != nil {
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return nil, models.ErrForkAlreadyExist{
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Uname: owner.Name,
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RepoName: opts.BaseRepo.FullName(),
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ForkName: forkedRepo.FullName(),
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}
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}
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repo := &models.Repository{
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OwnerID: owner.ID,
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Owner: owner,
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OwnerName: owner.Name,
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Name: opts.Name,
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LowerName: strings.ToLower(opts.Name),
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Description: opts.Description,
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DefaultBranch: opts.BaseRepo.DefaultBranch,
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IsPrivate: opts.BaseRepo.IsPrivate || opts.BaseRepo.Owner.Visibility == structs.VisibleTypePrivate,
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IsEmpty: opts.BaseRepo.IsEmpty,
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IsFork: true,
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ForkID: opts.BaseRepo.ID,
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}
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oldRepoPath := opts.BaseRepo.RepoPath()
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needsRollback := false
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rollbackFn := func() {
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if !needsRollback {
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return
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}
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repoPath := models.RepoPath(owner.Name, repo.Name)
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if exists, _ := util.IsExist(repoPath); !exists {
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return
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}
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// As the transaction will be failed and hence database changes will be destroyed we only need
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// to delete the related repository on the filesystem
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if errDelete := util.RemoveAll(repoPath); errDelete != nil {
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log.Error("Failed to remove fork repo")
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}
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}
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needsRollbackInPanic := true
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defer func() {
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panicErr := recover()
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if panicErr == nil {
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return
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}
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if needsRollbackInPanic {
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rollbackFn()
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}
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panic(panicErr)
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}()
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err = db.WithTx(func(ctx context.Context) error {
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if err = models.CreateRepository(ctx, doer, owner, repo, false); err != nil {
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return err
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}
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if err = models.IncrementRepoForkNum(ctx, opts.BaseRepo.ID); err != nil {
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return err
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}
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2021-04-15 05:15:28 +08:00
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// copy lfs files failure should not be ignored
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if err = models.CopyLFS(ctx, repo, opts.BaseRepo); err != nil {
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return err
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}
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needsRollback = true
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repoPath := models.RepoPath(owner.Name, repo.Name)
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if stdout, err := git.NewCommandContext(ctx,
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"clone", "--bare", oldRepoPath, repoPath).
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SetDescription(fmt.Sprintf("ForkRepository(git clone): %s to %s", opts.BaseRepo.FullName(), repo.FullName())).
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RunInDirTimeout(10*time.Minute, ""); err != nil {
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log.Error("Fork Repository (git clone) Failed for %v (from %v):\nStdout: %s\nError: %v", repo, opts.BaseRepo, stdout, err)
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return fmt.Errorf("git clone: %v", err)
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}
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2021-10-14 03:47:02 +08:00
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if err := repo.CheckDaemonExportOK(ctx); err != nil {
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return fmt.Errorf("checkDaemonExportOK: %v", err)
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}
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if stdout, err := git.NewCommandContext(ctx, "update-server-info").
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SetDescription(fmt.Sprintf("ForkRepository(git update-server-info): %s", repo.FullName())).
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RunInDir(repoPath); err != nil {
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log.Error("Fork Repository (git update-server-info) failed for %v:\nStdout: %s\nError: %v", repo, stdout, err)
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return fmt.Errorf("git update-server-info: %v", err)
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}
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if err = repo_module.CreateDelegateHooks(repoPath); err != nil {
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return fmt.Errorf("createDelegateHooks: %v", err)
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}
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return nil
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})
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needsRollbackInPanic = false
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if err != nil {
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rollbackFn()
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return nil, err
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}
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// even if below operations failed, it could be ignored. And they will be retried
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ctx := db.DefaultContext
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if err := repo.UpdateSize(ctx); err != nil {
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log.Error("Failed to update size for repository: %v", err)
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}
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if err := models.CopyLanguageStat(opts.BaseRepo, repo); err != nil {
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log.Error("Copy language stat from oldRepo failed")
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}
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notification.NotifyForkRepository(doer, opts.BaseRepo, repo)
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return repo, nil
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}
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// ConvertForkToNormalRepository convert the provided repo from a forked repo to normal repo
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func ConvertForkToNormalRepository(repo *models.Repository) error {
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err := db.WithTx(func(ctx context.Context) error {
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repo, err := models.GetRepositoryByIDCtx(ctx, repo.ID)
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if err != nil {
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return err
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}
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if !repo.IsFork {
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return nil
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}
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if err := models.DecrementRepoForkNum(ctx, repo.ForkID); err != nil {
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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)
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return err
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}
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repo.IsFork = false
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repo.ForkID = 0
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if err := models.UpdateRepositoryCtx(ctx, repo, false); err != nil {
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log.Error("Unable to update repository %-v whilst converting from fork. Error: %v", repo, err)
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return err
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}
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return nil
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})
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return err
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}
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