forgejo-federation/modules/repository/repo.go

440 lines
13 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"
"io"
"net/http"
"path"
"strings"
"time"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/models/db"
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/lfs"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/migration"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/util"
"gopkg.in/ini.v1"
)
/*
GitHub, GitLab, Gogs: *.wiki.git
BitBucket: *.git/wiki
*/
var commonWikiURLSuffixes = []string{".wiki.git", ".git/wiki"}
// WikiRemoteURL returns accessible repository URL for wiki if exists.
// Otherwise, it returns an empty string.
func WikiRemoteURL(ctx context.Context, remote string) string {
remote = strings.TrimSuffix(remote, ".git")
for _, suffix := range commonWikiURLSuffixes {
wikiURL := remote + suffix
if git.IsRepoURLAccessible(ctx, wikiURL) {
return wikiURL
}
}
return ""
}
// MigrateRepositoryGitData starts migrating git related data after created migrating repository
func MigrateRepositoryGitData(ctx context.Context, u *user_model.User,
repo *repo_model.Repository, opts migration.MigrateOptions,
httpTransport *http.Transport,
) (*repo_model.Repository, error) {
repoPath := repo_model.RepoPath(u.Name, opts.RepoName)
if u.IsOrganization() {
t, err := models.OrgFromUser(u).GetOwnerTeam()
if err != nil {
return nil, err
}
repo.NumWatches = t.NumMembers
} else {
repo.NumWatches = 1
}
migrateTimeout := time.Duration(setting.Git.Timeout.Migrate) * time.Second
var err error
if err = util.RemoveAll(repoPath); err != nil {
return repo, fmt.Errorf("Failed to remove %s: %v", repoPath, err)
}
if err = git.Clone(ctx, opts.CloneAddr, repoPath, git.CloneRepoOptions{
Mirror: true,
Quiet: true,
Timeout: migrateTimeout,
}); err != nil {
return repo, fmt.Errorf("Clone: %v", err)
}
if opts.Wiki {
wikiPath := repo_model.WikiPath(u.Name, opts.RepoName)
wikiRemotePath := WikiRemoteURL(ctx, opts.CloneAddr)
if len(wikiRemotePath) > 0 {
if err := util.RemoveAll(wikiPath); err != nil {
return repo, fmt.Errorf("Failed to remove %s: %v", wikiPath, err)
}
if err = git.Clone(ctx, wikiRemotePath, wikiPath, git.CloneRepoOptions{
Mirror: true,
Quiet: true,
Timeout: migrateTimeout,
Branch: "master",
}); err != nil {
log.Warn("Clone wiki: %v", err)
if err := util.RemoveAll(wikiPath); err != nil {
return repo, fmt.Errorf("Failed to remove %s: %v", wikiPath, err)
}
}
}
}
if repo.OwnerID == u.ID {
repo.Owner = u
}
if err = models.CheckDaemonExportOK(ctx, repo); err != nil {
return repo, fmt.Errorf("checkDaemonExportOK: %v", err)
}
if stdout, err := git.NewCommand(ctx, "update-server-info").
SetDescription(fmt.Sprintf("MigrateRepositoryGitData(git update-server-info): %s", repoPath)).
RunInDir(repoPath); err != nil {
log.Error("MigrateRepositoryGitData(git update-server-info) in %v: Stdout: %s\nError: %v", repo, stdout, err)
return repo, fmt.Errorf("error in MigrateRepositoryGitData(git update-server-info): %v", err)
}
gitRepo, err := git.OpenRepositoryCtx(ctx, repoPath)
if err != nil {
return repo, fmt.Errorf("OpenRepository: %v", err)
}
defer gitRepo.Close()
repo.IsEmpty, err = gitRepo.IsEmpty()
if err != nil {
return repo, fmt.Errorf("git.IsEmpty: %v", err)
}
if !repo.IsEmpty {
if len(repo.DefaultBranch) == 0 {
// Try to get HEAD branch and set it as default branch.
headBranch, err := gitRepo.GetHEADBranch()
if err != nil {
return repo, fmt.Errorf("GetHEADBranch: %v", err)
}
if headBranch != nil {
repo.DefaultBranch = headBranch.Name
}
}
if !opts.Releases {
if err = SyncReleasesWithTags(repo, gitRepo); err != nil {
log.Error("Failed to synchronize tags to releases for repository: %v", err)
}
}
if opts.LFS {
endpoint := lfs.DetermineEndpoint(opts.CloneAddr, opts.LFSEndpoint)
lfsClient := lfs.NewClient(endpoint, httpTransport)
if err = StoreMissingLfsObjectsInRepository(ctx, repo, gitRepo, lfsClient); err != nil {
log.Error("Failed to store missing LFS objects for repository: %v", err)
}
}
}
if err = models.UpdateRepoSize(db.DefaultContext, repo); err != nil {
log.Error("Failed to update size for repository: %v", err)
}
if opts.Mirror {
mirrorModel := repo_model.Mirror{
RepoID: repo.ID,
Interval: setting.Mirror.DefaultInterval,
EnablePrune: true,
NextUpdateUnix: timeutil.TimeStampNow().AddDuration(setting.Mirror.DefaultInterval),
LFS: opts.LFS,
}
if opts.LFS {
mirrorModel.LFSEndpoint = opts.LFSEndpoint
}
if opts.MirrorInterval != "" {
parsedInterval, err := time.ParseDuration(opts.MirrorInterval)
if err != nil {
log.Error("Failed to set Interval: %v", err)
return repo, err
}
if parsedInterval == 0 {
mirrorModel.Interval = 0
mirrorModel.NextUpdateUnix = 0
} else if parsedInterval < setting.Mirror.MinInterval {
err := fmt.Errorf("Interval %s is set below Minimum Interval of %s", parsedInterval, setting.Mirror.MinInterval)
log.Error("Interval: %s is too frequent", opts.MirrorInterval)
return repo, err
} else {
mirrorModel.Interval = parsedInterval
mirrorModel.NextUpdateUnix = timeutil.TimeStampNow().AddDuration(parsedInterval)
}
}
if err = repo_model.InsertMirror(&mirrorModel); err != nil {
return repo, fmt.Errorf("InsertOne: %v", err)
}
repo.IsMirror = true
err = models.UpdateRepository(repo, false)
} else {
repo, err = CleanUpMigrateInfo(ctx, repo)
}
return repo, err
}
// cleanUpMigrateGitConfig removes mirror info which prevents "push --all".
// This also removes possible user credentials.
func cleanUpMigrateGitConfig(configPath string) error {
cfg, err := ini.Load(configPath)
if err != nil {
return fmt.Errorf("open config file: %v", err)
}
cfg.DeleteSection("remote \"origin\"")
if err = cfg.SaveToIndent(configPath, "\t"); err != nil {
return fmt.Errorf("save config file: %v", err)
}
return nil
}
// CleanUpMigrateInfo finishes migrating repository and/or wiki with things that don't need to be done for mirrors.
func CleanUpMigrateInfo(ctx context.Context, repo *repo_model.Repository) (*repo_model.Repository, error) {
repoPath := repo.RepoPath()
if err := createDelegateHooks(repoPath); err != nil {
return repo, fmt.Errorf("createDelegateHooks: %v", err)
}
if repo.HasWiki() {
if err := createDelegateHooks(repo.WikiPath()); err != nil {
return repo, fmt.Errorf("createDelegateHooks.(wiki): %v", err)
}
}
_, err := git.NewCommand(ctx, "remote", "rm", "origin").RunInDir(repoPath)
if err != nil && !strings.HasPrefix(err.Error(), "exit status 128 - fatal: No such remote ") {
return repo, fmt.Errorf("CleanUpMigrateInfo: %v", err)
}
if repo.HasWiki() {
if err := cleanUpMigrateGitConfig(path.Join(repo.WikiPath(), "config")); err != nil {
return repo, fmt.Errorf("cleanUpMigrateGitConfig (wiki): %v", err)
}
}
return repo, models.UpdateRepository(repo, false)
}
// SyncReleasesWithTags synchronizes release table with repository tags
func SyncReleasesWithTags(repo *repo_model.Repository, gitRepo *git.Repository) error {
existingRelTags := make(map[string]struct{})
opts := models.FindReleasesOptions{
IncludeDrafts: true,
IncludeTags: true,
ListOptions: db.ListOptions{PageSize: 50},
}
for page := 1; ; page++ {
opts.Page = page
rels, err := models.GetReleasesByRepoID(repo.ID, opts)
if err != nil {
return fmt.Errorf("GetReleasesByRepoID: %v", err)
}
if len(rels) == 0 {
break
}
for _, rel := range rels {
if rel.IsDraft {
continue
}
commitID, err := gitRepo.GetTagCommitID(rel.TagName)
if err != nil && !git.IsErrNotExist(err) {
return fmt.Errorf("GetTagCommitID: %s: %v", rel.TagName, err)
}
if git.IsErrNotExist(err) || commitID != rel.Sha1 {
if err := models.PushUpdateDeleteTag(repo, rel.TagName); err != nil {
return fmt.Errorf("PushUpdateDeleteTag: %s: %v", rel.TagName, err)
}
} else {
existingRelTags[strings.ToLower(rel.TagName)] = struct{}{}
}
}
}
tags, err := gitRepo.GetTags(0, 0)
if err != nil {
return fmt.Errorf("GetTags: %v", err)
}
for _, tagName := range tags {
if _, ok := existingRelTags[strings.ToLower(tagName)]; !ok {
if err := PushUpdateAddTag(repo, gitRepo, tagName); err != nil {
return fmt.Errorf("pushUpdateAddTag: %v", err)
}
}
}
return nil
}
// PushUpdateAddTag must be called for any push actions to add tag
func PushUpdateAddTag(repo *repo_model.Repository, gitRepo *git.Repository, tagName string) error {
tag, err := gitRepo.GetTag(tagName)
if err != nil {
return fmt.Errorf("GetTag: %v", err)
}
commit, err := tag.Commit(gitRepo)
if err != nil {
return fmt.Errorf("Commit: %v", err)
}
sig := tag.Tagger
if sig == nil {
sig = commit.Author
}
if sig == nil {
sig = commit.Committer
}
var author *user_model.User
createdAt := time.Unix(1, 0)
if sig != nil {
author, err = user_model.GetUserByEmail(sig.Email)
if err != nil && !user_model.IsErrUserNotExist(err) {
return fmt.Errorf("GetUserByEmail: %v", err)
}
createdAt = sig.When
}
commitsCount, err := commit.CommitsCount()
if err != nil {
return fmt.Errorf("CommitsCount: %v", err)
}
rel := models.Release{
RepoID: repo.ID,
TagName: tagName,
LowerTagName: strings.ToLower(tagName),
Sha1: commit.ID.String(),
NumCommits: commitsCount,
CreatedUnix: timeutil.TimeStamp(createdAt.Unix()),
IsTag: true,
}
if author != nil {
rel.PublisherID = author.ID
}
return models.SaveOrUpdateTag(repo, &rel)
}
// StoreMissingLfsObjectsInRepository downloads missing LFS objects
func StoreMissingLfsObjectsInRepository(ctx context.Context, repo *repo_model.Repository, gitRepo *git.Repository, lfsClient lfs.Client) error {
contentStore := lfs.NewContentStore()
pointerChan := make(chan lfs.PointerBlob)
errChan := make(chan error, 1)
go lfs.SearchPointerBlobs(ctx, gitRepo, pointerChan, errChan)
downloadObjects := func(pointers []lfs.Pointer) error {
err := lfsClient.Download(ctx, pointers, func(p lfs.Pointer, content io.ReadCloser, objectError error) error {
if objectError != nil {
return objectError
}
defer content.Close()
_, err := models.NewLFSMetaObject(&models.LFSMetaObject{Pointer: p, RepositoryID: repo.ID})
if err != nil {
log.Error("Error creating LFS meta object %v: %v", p, err)
return err
}
if err := contentStore.Put(p, content); err != nil {
log.Error("Error storing content for LFS meta object %v: %v", p, err)
if _, err2 := models.RemoveLFSMetaObjectByOid(repo.ID, p.Oid); err2 != nil {
log.Error("Error removing LFS meta object %v: %v", p, err2)
}
return err
}
return nil
})
if err != nil {
select {
case <-ctx.Done():
return nil
default:
}
}
return err
}
var batch []lfs.Pointer
for pointerBlob := range pointerChan {
meta, err := models.GetLFSMetaObjectByOid(repo.ID, pointerBlob.Oid)
if err != nil && err != models.ErrLFSObjectNotExist {
log.Error("Error querying LFS meta object %v: %v", pointerBlob.Pointer, err)
return err
}
if meta != nil {
log.Trace("Skipping unknown LFS meta object %v", pointerBlob.Pointer)
continue
}
log.Trace("LFS object %v not present in repository %s", pointerBlob.Pointer, repo.FullName())
exist, err := contentStore.Exists(pointerBlob.Pointer)
if err != nil {
log.Error("Error checking if LFS object %v exists: %v", pointerBlob.Pointer, err)
return err
}
if exist {
log.Trace("LFS object %v already present; creating meta object", pointerBlob.Pointer)
_, err := models.NewLFSMetaObject(&models.LFSMetaObject{Pointer: pointerBlob.Pointer, RepositoryID: repo.ID})
if err != nil {
log.Error("Error creating LFS meta object %v: %v", pointerBlob.Pointer, err)
return err
}
} else {
if setting.LFS.MaxFileSize > 0 && pointerBlob.Size > setting.LFS.MaxFileSize {
log.Info("LFS object %v download denied because of LFS_MAX_FILE_SIZE=%d < size %d", pointerBlob.Pointer, setting.LFS.MaxFileSize, pointerBlob.Size)
continue
}
batch = append(batch, pointerBlob.Pointer)
if len(batch) >= lfsClient.BatchSize() {
if err := downloadObjects(batch); err != nil {
return err
}
batch = nil
}
}
}
if len(batch) > 0 {
if err := downloadObjects(batch); err != nil {
return err
}
}
err, has := <-errChan
if has {
log.Error("Error enumerating LFS objects for repository: %v", err)
return err
}
return nil
}