forgejo/modules/repository/repo.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

416 lines
12 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/url"
"path"
"strings"
"time"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/lfs"
"code.gitea.io/gitea/modules/log"
migration "code.gitea.io/gitea/modules/migrations/base"
"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(remote string) string {
remote = strings.TrimSuffix(remote, ".git")
for _, suffix := range commonWikiURLSuffixes {
wikiURL := remote + suffix
if git.IsRepoURLAccessible(wikiURL) {
return wikiURL
}
}
return ""
}
// MigrateRepositoryGitData starts migrating git related data after created migrating repository
func MigrateRepositoryGitData(ctx context.Context, u *models.User, repo *models.Repository, opts migration.MigrateOptions) (*models.Repository, error) {
repoPath := models.RepoPath(u.Name, opts.RepoName)
if u.IsOrganization() {
t, err := 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.CloneWithContext(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 := models.WikiPath(u.Name, opts.RepoName)
wikiRemotePath := WikiRemoteURL(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.CloneWithContext(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)
}
}
}
}
gitRepo, err := git.OpenRepository(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 {
ep := lfs.DetermineEndpoint(opts.CloneAddr, opts.LFSEndpoint)
if err = StoreMissingLfsObjectsInRepository(ctx, repo, gitRepo, ep, setting.Migrations.SkipTLSVerify); err != nil {
log.Error("Failed to store missing LFS objects for repository: %v", err)
}
}
}
if err = repo.UpdateSize(db.DefaultContext); err != nil {
log.Error("Failed to update size for repository: %v", err)
}
if opts.Mirror {
mirrorModel := models.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 = models.InsertMirror(&mirrorModel); err != nil {
return repo, fmt.Errorf("InsertOne: %v", err)
}
repo.IsMirror = true
err = models.UpdateRepository(repo, false)
} else {
repo, err = CleanUpMigrateInfo(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(repo *models.Repository) (*models.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("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 *models.Repository, gitRepo *git.Repository) error {
existingRelTags := make(map[string]struct{})
opts := models.FindReleasesOptions{IncludeDrafts: true, IncludeTags: true, ListOptions: models.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 *models.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()
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 *models.User
var createdAt = time.Unix(1, 0)
if sig != nil {
author, err = models.GetUserByEmail(sig.Email)
if err != nil && !models.IsErrUserNotExist(err) {
return fmt.Errorf("GetUserByEmail: %v", err)
}
createdAt = sig.When
}
commitsCount, err := commit.CommitsCount()
if err != nil {
return fmt.Errorf("CommitsCount: %v", err)
}
var 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 *models.Repository, gitRepo *git.Repository, endpoint *url.URL, skipTLSVerify bool) error {
client := lfs.NewClient(endpoint, skipTLSVerify)
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 := client.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 := repo.RemoveLFSMetaObjectByOid(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 := repo.GetLFSMetaObjectByOid(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) >= client.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
}