415 lines
12 KiB
Go
415 lines
12 KiB
Go
// 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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"context"
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"fmt"
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"io"
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"net/url"
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"path"
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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/modules/git"
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"code.gitea.io/gitea/modules/lfs"
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"code.gitea.io/gitea/modules/log"
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migration "code.gitea.io/gitea/modules/migrations/base"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/timeutil"
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"code.gitea.io/gitea/modules/util"
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"gopkg.in/ini.v1"
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)
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/*
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GitHub, GitLab, Gogs: *.wiki.git
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BitBucket: *.git/wiki
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*/
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var commonWikiURLSuffixes = []string{".wiki.git", ".git/wiki"}
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// WikiRemoteURL returns accessible repository URL for wiki if exists.
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// Otherwise, it returns an empty string.
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func WikiRemoteURL(remote string) string {
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remote = strings.TrimSuffix(remote, ".git")
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for _, suffix := range commonWikiURLSuffixes {
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wikiURL := remote + suffix
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if git.IsRepoURLAccessible(wikiURL) {
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return wikiURL
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}
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}
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return ""
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}
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// MigrateRepositoryGitData starts migrating git related data after created migrating repository
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func MigrateRepositoryGitData(ctx context.Context, u *models.User, repo *models.Repository, opts migration.MigrateOptions) (*models.Repository, error) {
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repoPath := models.RepoPath(u.Name, opts.RepoName)
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if u.IsOrganization() {
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t, err := u.GetOwnerTeam()
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if err != nil {
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return nil, err
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}
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repo.NumWatches = t.NumMembers
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} else {
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repo.NumWatches = 1
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}
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migrateTimeout := time.Duration(setting.Git.Timeout.Migrate) * time.Second
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var err error
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if err = util.RemoveAll(repoPath); err != nil {
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return repo, fmt.Errorf("Failed to remove %s: %v", repoPath, err)
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}
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if err = git.CloneWithContext(ctx, opts.CloneAddr, repoPath, git.CloneRepoOptions{
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Mirror: true,
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Quiet: true,
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Timeout: migrateTimeout,
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}); err != nil {
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return repo, fmt.Errorf("Clone: %v", err)
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}
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if opts.Wiki {
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wikiPath := models.WikiPath(u.Name, opts.RepoName)
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wikiRemotePath := WikiRemoteURL(opts.CloneAddr)
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if len(wikiRemotePath) > 0 {
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if err := util.RemoveAll(wikiPath); err != nil {
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return repo, fmt.Errorf("Failed to remove %s: %v", wikiPath, err)
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}
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if err = git.CloneWithContext(ctx, wikiRemotePath, wikiPath, git.CloneRepoOptions{
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Mirror: true,
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Quiet: true,
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Timeout: migrateTimeout,
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Branch: "master",
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}); err != nil {
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log.Warn("Clone wiki: %v", err)
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if err := util.RemoveAll(wikiPath); err != nil {
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return repo, fmt.Errorf("Failed to remove %s: %v", wikiPath, err)
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}
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}
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}
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}
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gitRepo, err := git.OpenRepository(repoPath)
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if err != nil {
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return repo, fmt.Errorf("OpenRepository: %v", err)
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}
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defer gitRepo.Close()
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repo.IsEmpty, err = gitRepo.IsEmpty()
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if err != nil {
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return repo, fmt.Errorf("git.IsEmpty: %v", err)
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}
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if !repo.IsEmpty {
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if len(repo.DefaultBranch) == 0 {
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// Try to get HEAD branch and set it as default branch.
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headBranch, err := gitRepo.GetHEADBranch()
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if err != nil {
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return repo, fmt.Errorf("GetHEADBranch: %v", err)
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}
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if headBranch != nil {
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repo.DefaultBranch = headBranch.Name
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}
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}
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if !opts.Releases {
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if err = SyncReleasesWithTags(repo, gitRepo); err != nil {
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log.Error("Failed to synchronize tags to releases for repository: %v", err)
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}
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}
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if opts.LFS {
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ep := lfs.DetermineEndpoint(opts.CloneAddr, opts.LFSEndpoint)
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if err = StoreMissingLfsObjectsInRepository(ctx, repo, gitRepo, ep, setting.Migrations.SkipTLSVerify); err != nil {
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log.Error("Failed to store missing LFS objects for repository: %v", err)
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}
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}
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}
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if err = repo.UpdateSize(models.DefaultDBContext()); 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 opts.Mirror {
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mirrorModel := models.Mirror{
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RepoID: repo.ID,
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Interval: setting.Mirror.DefaultInterval,
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EnablePrune: true,
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NextUpdateUnix: timeutil.TimeStampNow().AddDuration(setting.Mirror.DefaultInterval),
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LFS: opts.LFS,
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}
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if opts.LFS {
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mirrorModel.LFSEndpoint = opts.LFSEndpoint
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}
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if opts.MirrorInterval != "" {
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parsedInterval, err := time.ParseDuration(opts.MirrorInterval)
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if err != nil {
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log.Error("Failed to set Interval: %v", err)
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return repo, err
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}
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if parsedInterval == 0 {
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mirrorModel.Interval = 0
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mirrorModel.NextUpdateUnix = 0
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} else if parsedInterval < setting.Mirror.MinInterval {
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err := fmt.Errorf("Interval %s is set below Minimum Interval of %s", parsedInterval, setting.Mirror.MinInterval)
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log.Error("Interval: %s is too frequent", opts.MirrorInterval)
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return repo, err
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} else {
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mirrorModel.Interval = parsedInterval
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mirrorModel.NextUpdateUnix = timeutil.TimeStampNow().AddDuration(parsedInterval)
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}
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}
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if err = models.InsertMirror(&mirrorModel); err != nil {
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return repo, fmt.Errorf("InsertOne: %v", err)
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}
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repo.IsMirror = true
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err = models.UpdateRepository(repo, false)
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} else {
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repo, err = CleanUpMigrateInfo(repo)
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}
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return repo, err
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}
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// cleanUpMigrateGitConfig removes mirror info which prevents "push --all".
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// This also removes possible user credentials.
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func cleanUpMigrateGitConfig(configPath string) error {
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cfg, err := ini.Load(configPath)
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if err != nil {
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return fmt.Errorf("open config file: %v", err)
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}
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cfg.DeleteSection("remote \"origin\"")
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if err = cfg.SaveToIndent(configPath, "\t"); err != nil {
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return fmt.Errorf("save config file: %v", err)
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}
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return nil
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}
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// CleanUpMigrateInfo finishes migrating repository and/or wiki with things that don't need to be done for mirrors.
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func CleanUpMigrateInfo(repo *models.Repository) (*models.Repository, error) {
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repoPath := repo.RepoPath()
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if err := createDelegateHooks(repoPath); err != nil {
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return repo, fmt.Errorf("createDelegateHooks: %v", err)
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}
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if repo.HasWiki() {
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if err := createDelegateHooks(repo.WikiPath()); err != nil {
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return repo, fmt.Errorf("createDelegateHooks.(wiki): %v", err)
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}
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}
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_, err := git.NewCommand("remote", "rm", "origin").RunInDir(repoPath)
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if err != nil && !strings.HasPrefix(err.Error(), "exit status 128 - fatal: No such remote ") {
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return repo, fmt.Errorf("CleanUpMigrateInfo: %v", err)
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}
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if repo.HasWiki() {
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if err := cleanUpMigrateGitConfig(path.Join(repo.WikiPath(), "config")); err != nil {
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return repo, fmt.Errorf("cleanUpMigrateGitConfig (wiki): %v", err)
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}
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}
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return repo, models.UpdateRepository(repo, false)
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}
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// SyncReleasesWithTags synchronizes release table with repository tags
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func SyncReleasesWithTags(repo *models.Repository, gitRepo *git.Repository) error {
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existingRelTags := make(map[string]struct{})
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opts := models.FindReleasesOptions{IncludeDrafts: true, IncludeTags: true, ListOptions: models.ListOptions{PageSize: 50}}
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for page := 1; ; page++ {
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opts.Page = page
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rels, err := models.GetReleasesByRepoID(repo.ID, opts)
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if err != nil {
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return fmt.Errorf("GetReleasesByRepoID: %v", err)
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}
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if len(rels) == 0 {
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break
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}
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for _, rel := range rels {
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if rel.IsDraft {
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continue
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}
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commitID, err := gitRepo.GetTagCommitID(rel.TagName)
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if err != nil && !git.IsErrNotExist(err) {
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return fmt.Errorf("GetTagCommitID: %s: %v", rel.TagName, err)
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}
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if git.IsErrNotExist(err) || commitID != rel.Sha1 {
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if err := models.PushUpdateDeleteTag(repo, rel.TagName); err != nil {
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return fmt.Errorf("PushUpdateDeleteTag: %s: %v", rel.TagName, err)
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}
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} else {
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existingRelTags[strings.ToLower(rel.TagName)] = struct{}{}
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}
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}
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}
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tags, err := gitRepo.GetTags(0, 0)
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if err != nil {
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return fmt.Errorf("GetTags: %v", err)
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}
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for _, tagName := range tags {
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if _, ok := existingRelTags[strings.ToLower(tagName)]; !ok {
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if err := PushUpdateAddTag(repo, gitRepo, tagName); err != nil {
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return fmt.Errorf("pushUpdateAddTag: %v", err)
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}
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}
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}
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return nil
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}
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// PushUpdateAddTag must be called for any push actions to add tag
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func PushUpdateAddTag(repo *models.Repository, gitRepo *git.Repository, tagName string) error {
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tag, err := gitRepo.GetTag(tagName)
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if err != nil {
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return fmt.Errorf("GetTag: %v", err)
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}
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commit, err := tag.Commit()
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if err != nil {
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return fmt.Errorf("Commit: %v", err)
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}
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sig := tag.Tagger
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if sig == nil {
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sig = commit.Author
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}
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if sig == nil {
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sig = commit.Committer
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}
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var author *models.User
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var createdAt = time.Unix(1, 0)
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if sig != nil {
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author, err = models.GetUserByEmail(sig.Email)
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if err != nil && !models.IsErrUserNotExist(err) {
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return fmt.Errorf("GetUserByEmail: %v", err)
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}
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createdAt = sig.When
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}
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commitsCount, err := commit.CommitsCount()
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if err != nil {
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return fmt.Errorf("CommitsCount: %v", err)
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}
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var rel = models.Release{
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RepoID: repo.ID,
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TagName: tagName,
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LowerTagName: strings.ToLower(tagName),
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Sha1: commit.ID.String(),
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NumCommits: commitsCount,
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CreatedUnix: timeutil.TimeStamp(createdAt.Unix()),
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IsTag: true,
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}
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if author != nil {
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rel.PublisherID = author.ID
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}
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return models.SaveOrUpdateTag(repo, &rel)
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}
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// StoreMissingLfsObjectsInRepository downloads missing LFS objects
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func StoreMissingLfsObjectsInRepository(ctx context.Context, repo *models.Repository, gitRepo *git.Repository, endpoint *url.URL, skipTLSVerify bool) error {
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client := lfs.NewClient(endpoint, skipTLSVerify)
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contentStore := lfs.NewContentStore()
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pointerChan := make(chan lfs.PointerBlob)
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errChan := make(chan error, 1)
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go lfs.SearchPointerBlobs(ctx, gitRepo, pointerChan, errChan)
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downloadObjects := func(pointers []lfs.Pointer) error {
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err := client.Download(ctx, pointers, func(p lfs.Pointer, content io.ReadCloser, objectError error) error {
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if objectError != nil {
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return objectError
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}
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defer content.Close()
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_, err := models.NewLFSMetaObject(&models.LFSMetaObject{Pointer: p, RepositoryID: repo.ID})
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if err != nil {
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log.Error("Error creating LFS meta object %v: %v", p, err)
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return err
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}
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if err := contentStore.Put(p, content); err != nil {
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log.Error("Error storing content for LFS meta object %v: %v", p, err)
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if _, err2 := repo.RemoveLFSMetaObjectByOid(p.Oid); err2 != nil {
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log.Error("Error removing LFS meta object %v: %v", p, err2)
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}
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return err
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}
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return nil
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})
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if err != nil {
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select {
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case <-ctx.Done():
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return nil
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default:
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}
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}
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return err
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}
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var batch []lfs.Pointer
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for pointerBlob := range pointerChan {
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meta, err := repo.GetLFSMetaObjectByOid(pointerBlob.Oid)
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if err != nil && err != models.ErrLFSObjectNotExist {
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log.Error("Error querying LFS meta object %v: %v", pointerBlob.Pointer, err)
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return err
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}
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if meta != nil {
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log.Trace("Skipping unknown LFS meta object %v", pointerBlob.Pointer)
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continue
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}
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log.Trace("LFS object %v not present in repository %s", pointerBlob.Pointer, repo.FullName())
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exist, err := contentStore.Exists(pointerBlob.Pointer)
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if err != nil {
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log.Error("Error checking if LFS object %v exists: %v", pointerBlob.Pointer, err)
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return err
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}
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if exist {
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log.Trace("LFS object %v already present; creating meta object", pointerBlob.Pointer)
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_, err := models.NewLFSMetaObject(&models.LFSMetaObject{Pointer: pointerBlob.Pointer, RepositoryID: repo.ID})
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if err != nil {
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log.Error("Error creating LFS meta object %v: %v", pointerBlob.Pointer, err)
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return err
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}
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} else {
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if setting.LFS.MaxFileSize > 0 && pointerBlob.Size > setting.LFS.MaxFileSize {
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log.Info("LFS object %v download denied because of LFS_MAX_FILE_SIZE=%d < size %d", pointerBlob.Pointer, setting.LFS.MaxFileSize, pointerBlob.Size)
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continue
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}
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batch = append(batch, pointerBlob.Pointer)
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if len(batch) >= client.BatchSize() {
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if err := downloadObjects(batch); err != nil {
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return err
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}
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batch = nil
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}
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}
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}
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if len(batch) > 0 {
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if err := downloadObjects(batch); err != nil {
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return err
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}
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}
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err, has := <-errChan
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if has {
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log.Error("Error enumerating LFS objects for repository: %v", 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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