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Fix automerge will not work because of some events haven't been triggered (#30780)

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Replace #25741
Close #24445
Close #30658
Close #20646
~Depends on #30805~

Since #25741 has been rewritten totally, to make the contribution
easier, I will continue the work in this PR. Thanks @6543

---------

Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
This commit is contained in:
Lunny Xiao
2024-05-21 23:23:22 +08:00
committed by GitHub
parent 1007ce764e
commit c6cf96d31d
7 changed files with 347 additions and 66 deletions
Download Patch File Download Diff File Expand all files Collapse all files

108
services/automerge/automerge.go
View File

@@ -22,6 +22,7 @@ import (
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/process"
"code.gitea.io/gitea/modules/queue"
notify_service "code.gitea.io/gitea/services/notify"
pull_service "code.gitea.io/gitea/services/pull"
)
@@ -30,6 +31,8 @@ var prAutoMergeQueue *queue.WorkerPoolQueue[string]
// Init runs the task queue to that handles auto merges
func Init() error {
notify_service.RegisterNotifier(NewNotifier())
prAutoMergeQueue = queue.CreateUniqueQueue(graceful.GetManager().ShutdownContext(), "pr_auto_merge", handler)
if prAutoMergeQueue == nil {
return fmt.Errorf("unable to create pr_auto_merge queue")
@@ -47,7 +50,7 @@ func handler(items ...string) []string {
log.Error("could not parse data from pr_auto_merge queue (%v): %v", s, err)
continue
}
handlePull(id, sha)
handlePullRequestAutoMerge(id, sha)
}
return nil
}
@@ -62,16 +65,6 @@ func addToQueue(pr *issues_model.PullRequest, sha string) {
// ScheduleAutoMerge if schedule is false and no error, pull can be merged directly
func ScheduleAutoMerge(ctx context.Context, doer *user_model.User, pull *issues_model.PullRequest, style repo_model.MergeStyle, message string) (scheduled bool, err error) {
err = db.WithTx(ctx, func(ctx context.Context) error {
lastCommitStatus, err := pull_service.GetPullRequestCommitStatusState(ctx, pull)
if err != nil {
return err
}
// we don't need to schedule
if lastCommitStatus.IsSuccess() {
return nil
}
if err := pull_model.ScheduleAutoMerge(ctx, doer, pull.ID, style, message); err != nil {
return err
}
@@ -95,8 +88,8 @@ func RemoveScheduledAutoMerge(ctx context.Context, doer *user_model.User, pull *
})
}
// MergeScheduledPullRequest merges a previously scheduled pull request when all checks succeeded
func MergeScheduledPullRequest(ctx context.Context, sha string, repo *repo_model.Repository) error {
// StartPRCheckAndAutoMergeBySHA start an automerge check and auto merge task for all pull requests of repository and SHA
func StartPRCheckAndAutoMergeBySHA(ctx context.Context, sha string, repo *repo_model.Repository) error {
pulls, err := getPullRequestsByHeadSHA(ctx, sha, repo, func(pr *issues_model.PullRequest) bool {
return !pr.HasMerged && pr.CanAutoMerge()
})
@@ -111,6 +104,32 @@ func MergeScheduledPullRequest(ctx context.Context, sha string, repo *repo_model
return nil
}
// StartPRCheckAndAutoMerge start an automerge check and auto merge task for a pull request
func StartPRCheckAndAutoMerge(ctx context.Context, pull *issues_model.PullRequest) {
if pull == nil || pull.HasMerged || !pull.CanAutoMerge() {
return
}
if err := pull.LoadBaseRepo(ctx); err != nil {
log.Error("LoadBaseRepo: %v", err)
return
}
gitRepo, err := gitrepo.OpenRepository(ctx, pull.BaseRepo)
if err != nil {
log.Error("OpenRepository: %v", err)
return
}
defer gitRepo.Close()
commitID, err := gitRepo.GetRefCommitID(pull.GetGitRefName())
if err != nil {
log.Error("GetRefCommitID: %v", err)
return
}
addToQueue(pull, commitID)
}
func getPullRequestsByHeadSHA(ctx context.Context, sha string, repo *repo_model.Repository, filter func(*issues_model.PullRequest) bool) (map[int64]*issues_model.PullRequest, error) {
gitRepo, err := gitrepo.OpenRepository(ctx, repo)
if err != nil {
@@ -161,7 +180,8 @@ func getPullRequestsByHeadSHA(ctx context.Context, sha string, repo *repo_model.
return pulls, nil
}
func handlePull(pullID int64, sha string) {
// handlePullRequestAutoMerge merge the pull request if all checks are successful
func handlePullRequestAutoMerge(pullID int64, sha string) {
ctx, _, finished := process.GetManager().AddContext(graceful.GetManager().HammerContext(),
fmt.Sprintf("Handle AutoMerge of PR[%d] with sha[%s]", pullID, sha))
defer finished()
@@ -182,24 +202,50 @@ func handlePull(pullID int64, sha string) {
return
}
if err = pr.LoadBaseRepo(ctx); err != nil {
log.Error("%-v LoadBaseRepo: %v", pr, err)
return
}
// check the sha is the same as pull request head commit id
baseGitRepo, err := gitrepo.OpenRepository(ctx, pr.BaseRepo)
if err != nil {
log.Error("OpenRepository: %v", err)
return
}
defer baseGitRepo.Close()
headCommitID, err := baseGitRepo.GetRefCommitID(pr.GetGitRefName())
if err != nil {
log.Error("GetRefCommitID: %v", err)
return
}
if headCommitID != sha {
log.Warn("Head commit id of auto merge %-v does not match sha [%s], it may means the head branch has been updated. Just ignore this request because a new request expected in the queue", pr, sha)
return
}
// Get all checks for this pr
// We get the latest sha commit hash again to handle the case where the check of a previous push
// did not succeed or was not finished yet.
if err = pr.LoadHeadRepo(ctx); err != nil {
log.Error("%-v LoadHeadRepo: %v", pr, err)
return
}
headGitRepo, err := gitrepo.OpenRepository(ctx, pr.HeadRepo)
if err != nil {
log.Error("OpenRepository %-v: %v", pr.HeadRepo, err)
return
var headGitRepo *git.Repository
if pr.BaseRepoID == pr.HeadRepoID {
headGitRepo = baseGitRepo
} else {
headGitRepo, err = gitrepo.OpenRepository(ctx, pr.HeadRepo)
if err != nil {
log.Error("OpenRepository %-v: %v", pr.HeadRepo, err)
return
}
defer headGitRepo.Close()
}
defer headGitRepo.Close()
headBranchExist := headGitRepo.IsBranchExist(pr.HeadBranch)
if pr.HeadRepo == nil || !headBranchExist {
log.Warn("Head branch of auto merge %-v does not exist [HeadRepoID: %d, Branch: %s]", pr, pr.HeadRepoID, pr.HeadBranch)
return
@@ -238,25 +284,11 @@ func handlePull(pullID int64, sha string) {
return
}
var baseGitRepo *git.Repository
if pr.BaseRepoID == pr.HeadRepoID {
baseGitRepo = headGitRepo
} else {
if err = pr.LoadBaseRepo(ctx); err != nil {
log.Error("%-v LoadBaseRepo: %v", pr, err)
return
}
baseGitRepo, err = gitrepo.OpenRepository(ctx, pr.BaseRepo)
if err != nil {
log.Error("OpenRepository %-v: %v", pr.BaseRepo, err)
return
}
defer baseGitRepo.Close()
}
if err := pull_service.Merge(ctx, pr, doer, baseGitRepo, scheduledPRM.MergeStyle, "", scheduledPRM.Message, true); err != nil {
log.Error("pull_service.Merge: %v", err)
// FIXME: if merge failed, we should display some error message to the pull request page.
// The resolution is add a new column on automerge table named `error_message` to store the error message and displayed
// on the pull request page. But this should not be finished in a bug fix PR which will be backport to release branch.
return
}
}

46
services/automerge/notify.go Normal file
View File

@@ -0,0 +1,46 @@
// Copyright 2024 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package automerge
import (
"context"
issues_model "code.gitea.io/gitea/models/issues"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/log"
notify_service "code.gitea.io/gitea/services/notify"
)
type automergeNotifier struct {
notify_service.NullNotifier
}
var _ notify_service.Notifier = &automergeNotifier{}
// NewNotifier create a new automergeNotifier notifier
func NewNotifier() notify_service.Notifier {
return &automergeNotifier{}
}
func (n *automergeNotifier) PullRequestReview(ctx context.Context, pr *issues_model.PullRequest, review *issues_model.Review, comment *issues_model.Comment, mentions []*user_model.User) {
// as a missing / blocking reviews could have blocked a pending automerge let's recheck
if review.Type == issues_model.ReviewTypeApprove {
if err := StartPRCheckAndAutoMergeBySHA(ctx, review.CommitID, pr.BaseRepo); err != nil {
log.Error("StartPullRequestAutoMergeCheckBySHA: %v", err)
}
}
}
func (n *automergeNotifier) PullReviewDismiss(ctx context.Context, doer *user_model.User, review *issues_model.Review, comment *issues_model.Comment) {
if err := review.LoadIssue(ctx); err != nil {
log.Error("LoadIssue: %v", err)
return
}
if err := review.Issue.LoadPullRequest(ctx); err != nil {
log.Error("LoadPullRequest: %v", err)
return
}
// as reviews could have blocked a pending automerge let's recheck
StartPRCheckAndAutoMerge(ctx, review.Issue.PullRequest)
}