forgejo/services/repository/push.go
Lunny Xiao 5f82ead13c
Simplify how git repositories are opened (#28937)
## Purpose
This is a refactor toward building an abstraction over managing git
repositories.
Afterwards, it does not matter anymore if they are stored on the local
disk or somewhere remote.

## What this PR changes
We used `git.OpenRepository` everywhere previously.
Now, we should split them into two distinct functions:

Firstly, there are temporary repositories which do not change:

```go
git.OpenRepository(ctx, diskPath)
```

Gitea managed repositories having a record in the database in the
`repository` table are moved into the new package `gitrepo`:

```go
gitrepo.OpenRepository(ctx, repo_model.Repo)
```

Why is `repo_model.Repository` the second parameter instead of file
path?
Because then we can easily adapt our repository storage strategy.
The repositories can be stored locally, however, they could just as well
be stored on a remote server.

## Further changes in other PRs
- A Git Command wrapper on package `gitrepo` could be created. i.e.
`NewCommand(ctx, repo_model.Repository, commands...)`. `git.RunOpts{Dir:
repo.RepoPath()}`, the directory should be empty before invoking this
method and it can be filled in the function only. #28940
- Remove the `RepoPath()`/`WikiPath()` functions to reduce the
possibility of mistakes.

---------

Co-authored-by: delvh <dev.lh@web.de>
2024-01-27 21:09:51 +01:00

434 lines
14 KiB
Go

// Copyright 2020 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package repository
import (
"context"
"errors"
"fmt"
"strings"
"time"
"code.gitea.io/gitea/models/db"
git_model "code.gitea.io/gitea/models/git"
repo_model "code.gitea.io/gitea/models/repo"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/cache"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/gitrepo"
"code.gitea.io/gitea/modules/graceful"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/process"
"code.gitea.io/gitea/modules/queue"
repo_module "code.gitea.io/gitea/modules/repository"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/timeutil"
issue_service "code.gitea.io/gitea/services/issue"
notify_service "code.gitea.io/gitea/services/notify"
pull_service "code.gitea.io/gitea/services/pull"
)
// pushQueue represents a queue to handle update pull request tests
var pushQueue *queue.WorkerPoolQueue[[]*repo_module.PushUpdateOptions]
// handle passed PR IDs and test the PRs
func handler(items ...[]*repo_module.PushUpdateOptions) [][]*repo_module.PushUpdateOptions {
for _, opts := range items {
if err := pushUpdates(opts); err != nil {
// Username and repository stays the same between items in opts.
pushUpdate := opts[0]
log.Error("pushUpdate[%s/%s] failed: %v", pushUpdate.RepoUserName, pushUpdate.RepoName, err)
}
}
return nil
}
func initPushQueue() error {
pushQueue = queue.CreateSimpleQueue(graceful.GetManager().ShutdownContext(), "push_update", handler)
if pushQueue == nil {
return errors.New("unable to create push_update queue")
}
go graceful.GetManager().RunWithCancel(pushQueue)
return nil
}
// PushUpdate is an alias of PushUpdates for single push update options
func PushUpdate(opts *repo_module.PushUpdateOptions) error {
return PushUpdates([]*repo_module.PushUpdateOptions{opts})
}
// PushUpdates adds a push update to push queue
func PushUpdates(opts []*repo_module.PushUpdateOptions) error {
if len(opts) == 0 {
return nil
}
for _, opt := range opts {
if opt.IsNewRef() && opt.IsDelRef() {
return fmt.Errorf("Old and new revisions are both NULL")
}
}
return pushQueue.Push(opts)
}
// pushUpdates generates push action history feeds for push updating multiple refs
func pushUpdates(optsList []*repo_module.PushUpdateOptions) error {
if len(optsList) == 0 {
return nil
}
ctx, _, finished := process.GetManager().AddContext(graceful.GetManager().HammerContext(), fmt.Sprintf("PushUpdates: %s/%s", optsList[0].RepoUserName, optsList[0].RepoName))
defer finished()
repo, err := repo_model.GetRepositoryByOwnerAndName(ctx, optsList[0].RepoUserName, optsList[0].RepoName)
if err != nil {
return fmt.Errorf("GetRepositoryByOwnerAndName failed: %w", err)
}
gitRepo, err := gitrepo.OpenRepository(ctx, repo)
if err != nil {
return fmt.Errorf("OpenRepository[%s]: %w", repo.FullName(), err)
}
defer gitRepo.Close()
objectFormat, err := gitRepo.GetObjectFormat()
if err != nil {
return fmt.Errorf("unknown repository ObjectFormat [%s]: %w", repo.FullName(), err)
}
if err = repo_module.UpdateRepoSize(ctx, repo); err != nil {
return fmt.Errorf("Failed to update size for repository: %v", err)
}
addTags := make([]string, 0, len(optsList))
delTags := make([]string, 0, len(optsList))
var pusher *user_model.User
for _, opts := range optsList {
log.Trace("pushUpdates: %-v %s %s %s", repo, opts.OldCommitID, opts.NewCommitID, opts.RefFullName)
if opts.IsNewRef() && opts.IsDelRef() {
return fmt.Errorf("old and new revisions are both %s", objectFormat.EmptyObjectID())
}
if opts.RefFullName.IsTag() {
if pusher == nil || pusher.ID != opts.PusherID {
if opts.PusherID == user_model.ActionsUserID {
pusher = user_model.NewActionsUser()
} else {
var err error
if pusher, err = user_model.GetUserByID(ctx, opts.PusherID); err != nil {
return err
}
}
}
tagName := opts.RefFullName.TagName()
if opts.IsDelRef() {
notify_service.PushCommits(
ctx, pusher, repo,
&repo_module.PushUpdateOptions{
RefFullName: git.RefNameFromTag(tagName),
OldCommitID: opts.OldCommitID,
NewCommitID: objectFormat.EmptyObjectID().String(),
}, repo_module.NewPushCommits())
delTags = append(delTags, tagName)
notify_service.DeleteRef(ctx, pusher, repo, opts.RefFullName)
} else { // is new tag
newCommit, err := gitRepo.GetCommit(opts.NewCommitID)
if err != nil {
return fmt.Errorf("gitRepo.GetCommit(%s) in %s/%s[%d]: %w", opts.NewCommitID, repo.OwnerName, repo.Name, repo.ID, err)
}
commits := repo_module.NewPushCommits()
commits.HeadCommit = repo_module.CommitToPushCommit(newCommit)
commits.CompareURL = repo.ComposeCompareURL(objectFormat.EmptyObjectID().String(), opts.NewCommitID)
notify_service.PushCommits(
ctx, pusher, repo,
&repo_module.PushUpdateOptions{
RefFullName: opts.RefFullName,
OldCommitID: objectFormat.EmptyObjectID().String(),
NewCommitID: opts.NewCommitID,
}, commits)
addTags = append(addTags, tagName)
notify_service.CreateRef(ctx, pusher, repo, opts.RefFullName, opts.NewCommitID)
}
} else if opts.RefFullName.IsBranch() {
if pusher == nil || pusher.ID != opts.PusherID {
if opts.PusherID == user_model.ActionsUserID {
pusher = user_model.NewActionsUser()
} else {
var err error
if pusher, err = user_model.GetUserByID(ctx, opts.PusherID); err != nil {
return err
}
}
}
branch := opts.RefFullName.BranchName()
if !opts.IsDelRef() {
log.Trace("TriggerTask '%s/%s' by %s", repo.Name, branch, pusher.Name)
go pull_service.AddTestPullRequestTask(pusher, repo.ID, branch, true, opts.OldCommitID, opts.NewCommitID)
newCommit, err := gitRepo.GetCommit(opts.NewCommitID)
if err != nil {
return fmt.Errorf("gitRepo.GetCommit(%s) in %s/%s[%d]: %w", opts.NewCommitID, repo.OwnerName, repo.Name, repo.ID, err)
}
refName := opts.RefName()
// Push new branch.
var l []*git.Commit
if opts.IsNewRef() {
if repo.IsEmpty { // Change default branch and empty status only if pushed ref is non-empty branch.
repo.DefaultBranch = refName
repo.IsEmpty = false
if repo.DefaultBranch != setting.Repository.DefaultBranch {
if err := gitRepo.SetDefaultBranch(repo.DefaultBranch); err != nil {
if !git.IsErrUnsupportedVersion(err) {
return err
}
}
}
// Update the is empty and default_branch columns
if err := repo_model.UpdateRepositoryCols(ctx, repo, "default_branch", "is_empty"); err != nil {
return fmt.Errorf("UpdateRepositoryCols: %w", err)
}
}
l, err = newCommit.CommitsBeforeLimit(10)
if err != nil {
return fmt.Errorf("newCommit.CommitsBeforeLimit: %w", err)
}
notify_service.CreateRef(ctx, pusher, repo, opts.RefFullName, opts.NewCommitID)
} else {
l, err = newCommit.CommitsBeforeUntil(opts.OldCommitID)
if err != nil {
return fmt.Errorf("newCommit.CommitsBeforeUntil: %w", err)
}
isForcePush, err := newCommit.IsForcePush(opts.OldCommitID)
if err != nil {
log.Error("IsForcePush %s:%s failed: %v", repo.FullName(), branch, err)
}
if isForcePush {
log.Trace("Push %s is a force push", opts.NewCommitID)
cache.Remove(repo.GetCommitsCountCacheKey(opts.RefName(), true))
} else {
// TODO: increment update the commit count cache but not remove
cache.Remove(repo.GetCommitsCountCacheKey(opts.RefName(), true))
}
}
commits := repo_module.GitToPushCommits(l)
commits.HeadCommit = repo_module.CommitToPushCommit(newCommit)
if err := issue_service.UpdateIssuesCommit(ctx, pusher, repo, commits.Commits, refName); err != nil {
log.Error("updateIssuesCommit: %v", err)
}
oldCommitID := opts.OldCommitID
if oldCommitID == objectFormat.EmptyObjectID().String() && len(commits.Commits) > 0 {
oldCommit, err := gitRepo.GetCommit(commits.Commits[len(commits.Commits)-1].Sha1)
if err != nil && !git.IsErrNotExist(err) {
log.Error("unable to GetCommit %s from %-v: %v", oldCommitID, repo, err)
}
if oldCommit != nil {
for i := 0; i < oldCommit.ParentCount(); i++ {
commitID, _ := oldCommit.ParentID(i)
if !commitID.IsZero() {
oldCommitID = commitID.String()
break
}
}
}
}
if oldCommitID == objectFormat.EmptyObjectID().String() && repo.DefaultBranch != branch {
oldCommitID = repo.DefaultBranch
}
if oldCommitID != objectFormat.EmptyObjectID().String() {
commits.CompareURL = repo.ComposeCompareURL(oldCommitID, opts.NewCommitID)
} else {
commits.CompareURL = ""
}
if len(commits.Commits) > setting.UI.FeedMaxCommitNum {
commits.Commits = commits.Commits[:setting.UI.FeedMaxCommitNum]
}
if err = syncBranchToDB(ctx, repo.ID, opts.PusherID, branch, newCommit); err != nil {
return fmt.Errorf("git_model.UpdateBranch %s:%s failed: %v", repo.FullName(), branch, err)
}
notify_service.PushCommits(ctx, pusher, repo, opts, commits)
// Cache for big repository
if err := CacheRef(graceful.GetManager().HammerContext(), repo, gitRepo, opts.RefFullName); err != nil {
log.Error("repo_module.CacheRef %s/%s failed: %v", repo.ID, branch, err)
}
} else {
notify_service.DeleteRef(ctx, pusher, repo, opts.RefFullName)
if err = pull_service.CloseBranchPulls(ctx, pusher, repo.ID, branch); err != nil {
// close all related pulls
log.Error("close related pull request failed: %v", err)
}
if err := git_model.AddDeletedBranch(ctx, repo.ID, branch, pusher.ID); err != nil {
return fmt.Errorf("AddDeletedBranch %s:%s failed: %v", repo.FullName(), branch, err)
}
}
// Even if user delete a branch on a repository which he didn't watch, he will be watch that.
if err = repo_model.WatchIfAuto(ctx, opts.PusherID, repo.ID, true); err != nil {
log.Warn("Fail to perform auto watch on user %v for repo %v: %v", opts.PusherID, repo.ID, err)
}
} else {
log.Trace("Non-tag and non-branch commits pushed.")
}
}
if err := PushUpdateAddDeleteTags(ctx, repo, gitRepo, addTags, delTags); err != nil {
return fmt.Errorf("PushUpdateAddDeleteTags: %w", err)
}
// Change repository last updated time.
if err := repo_model.UpdateRepositoryUpdatedTime(ctx, repo.ID, time.Now()); err != nil {
return fmt.Errorf("UpdateRepositoryUpdatedTime: %w", err)
}
return nil
}
// PushUpdateAddDeleteTags updates a number of added and delete tags
func PushUpdateAddDeleteTags(ctx context.Context, repo *repo_model.Repository, gitRepo *git.Repository, addTags, delTags []string) error {
return db.WithTx(ctx, func(ctx context.Context) error {
if err := repo_model.PushUpdateDeleteTagsContext(ctx, repo, delTags); err != nil {
return err
}
return pushUpdateAddTags(ctx, repo, gitRepo, addTags)
})
}
// pushUpdateAddTags updates a number of add tags
func pushUpdateAddTags(ctx context.Context, repo *repo_model.Repository, gitRepo *git.Repository, tags []string) error {
if len(tags) == 0 {
return nil
}
lowerTags := make([]string, 0, len(tags))
for _, tag := range tags {
lowerTags = append(lowerTags, strings.ToLower(tag))
}
releases, err := db.Find[repo_model.Release](ctx, repo_model.FindReleasesOptions{
RepoID: repo.ID,
TagNames: lowerTags,
})
if err != nil {
return fmt.Errorf("db.Find[repo_model.Release]: %w", err)
}
relMap := make(map[string]*repo_model.Release)
for _, rel := range releases {
relMap[rel.LowerTagName] = rel
}
newReleases := make([]*repo_model.Release, 0, len(lowerTags)-len(relMap))
emailToUser := make(map[string]*user_model.User)
for i, lowerTag := range lowerTags {
tag, err := gitRepo.GetTag(tags[i])
if err != nil {
return fmt.Errorf("GetTag: %w", err)
}
commit, err := tag.Commit(gitRepo)
if err != nil {
return fmt.Errorf("Commit: %w", 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 {
var ok bool
author, ok = emailToUser[sig.Email]
if !ok {
author, err = user_model.GetUserByEmail(ctx, sig.Email)
if err != nil && !user_model.IsErrUserNotExist(err) {
return fmt.Errorf("GetUserByEmail: %w", err)
}
if author != nil {
emailToUser[sig.Email] = author
}
}
createdAt = sig.When
}
commitsCount, err := commit.CommitsCount()
if err != nil {
return fmt.Errorf("CommitsCount: %w", err)
}
rel, has := relMap[lowerTag]
if !has {
parts := strings.SplitN(tag.Message, "\n", 2)
note := ""
if len(parts) > 1 {
note = parts[1]
}
rel = &repo_model.Release{
RepoID: repo.ID,
Title: parts[0],
TagName: tags[i],
LowerTagName: lowerTag,
Target: "",
Sha1: commit.ID.String(),
NumCommits: commitsCount,
Note: note,
IsDraft: false,
IsPrerelease: false,
IsTag: true,
CreatedUnix: timeutil.TimeStamp(createdAt.Unix()),
}
if author != nil {
rel.PublisherID = author.ID
}
newReleases = append(newReleases, rel)
} else {
rel.Sha1 = commit.ID.String()
rel.CreatedUnix = timeutil.TimeStamp(createdAt.Unix())
rel.NumCommits = commitsCount
rel.IsDraft = false
if rel.IsTag && author != nil {
rel.PublisherID = author.ID
}
if err = repo_model.UpdateRelease(ctx, rel); err != nil {
return fmt.Errorf("Update: %w", err)
}
}
}
if len(newReleases) > 0 {
if err = db.Insert(ctx, newReleases); err != nil {
return fmt.Errorf("Insert: %w", err)
}
}
return nil
}