221 lines
7.5 KiB
Go
221 lines
7.5 KiB
Go
// Copyright 2021 Gitea. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package automerge
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"fmt"
|
|
|
|
"code.gitea.io/gitea/models/db"
|
|
issues_model "code.gitea.io/gitea/models/issues"
|
|
access_model "code.gitea.io/gitea/models/perm/access"
|
|
pull_model "code.gitea.io/gitea/models/pull"
|
|
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/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"
|
|
notify_service "code.gitea.io/gitea/services/notify"
|
|
pull_service "code.gitea.io/gitea/services/pull"
|
|
repo_service "code.gitea.io/gitea/services/repository"
|
|
shared_automerge "code.gitea.io/gitea/services/shared/automerge"
|
|
)
|
|
|
|
// Init runs the task queue to that handles auto merges
|
|
func Init() error {
|
|
notify_service.RegisterNotifier(NewNotifier())
|
|
|
|
shared_automerge.PRAutoMergeQueue = queue.CreateUniqueQueue(graceful.GetManager().ShutdownContext(), "pr_auto_merge", handler)
|
|
if shared_automerge.PRAutoMergeQueue == nil {
|
|
return fmt.Errorf("unable to create pr_auto_merge queue")
|
|
}
|
|
go graceful.GetManager().RunWithCancel(shared_automerge.PRAutoMergeQueue)
|
|
return nil
|
|
}
|
|
|
|
// handle passed PR IDs and test the PRs
|
|
func handler(items ...string) []string {
|
|
for _, s := range items {
|
|
var id int64
|
|
var sha string
|
|
if _, err := fmt.Sscanf(s, "%d_%s", &id, &sha); err != nil {
|
|
log.Error("could not parse data from pr_auto_merge queue (%v): %v", s, err)
|
|
continue
|
|
}
|
|
handlePullRequestAutoMerge(id, sha)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// 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, deleteBranch bool) (scheduled bool, err error) {
|
|
err = db.WithTx(ctx, func(ctx context.Context) error {
|
|
if err := pull_model.ScheduleAutoMerge(ctx, doer, pull.ID, style, message, deleteBranch); err != nil {
|
|
return err
|
|
}
|
|
scheduled = true
|
|
|
|
_, err = issues_model.CreateAutoMergeComment(ctx, issues_model.CommentTypePRScheduledToAutoMerge, pull, doer)
|
|
return err
|
|
})
|
|
return scheduled, err
|
|
}
|
|
|
|
// RemoveScheduledAutoMerge cancels a previously scheduled pull request
|
|
func RemoveScheduledAutoMerge(ctx context.Context, doer *user_model.User, pull *issues_model.PullRequest) error {
|
|
return db.WithTx(ctx, func(ctx context.Context) error {
|
|
if err := pull_model.DeleteScheduledAutoMerge(ctx, pull.ID); err != nil {
|
|
return err
|
|
}
|
|
|
|
_, err := issues_model.CreateAutoMergeComment(ctx, issues_model.CommentTypePRUnScheduledToAutoMerge, pull, doer)
|
|
return err
|
|
})
|
|
}
|
|
|
|
// 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 {
|
|
return shared_automerge.StartPRCheckAndAutoMergeBySHA(ctx, sha, repo)
|
|
}
|
|
|
|
// StartPRCheckAndAutoMerge start an automerge check and auto merge task for a pull request
|
|
func StartPRCheckAndAutoMerge(ctx context.Context, pull *issues_model.PullRequest) {
|
|
shared_automerge.StartPRCheckAndAutoMerge(ctx, pull)
|
|
}
|
|
|
|
// 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()
|
|
|
|
pr, err := issues_model.GetPullRequestByID(ctx, pullID)
|
|
if err != nil {
|
|
log.Error("GetPullRequestByID[%d]: %v", pullID, err)
|
|
return
|
|
}
|
|
|
|
// Check if there is a scheduled pr in the db
|
|
exists, scheduledPRM, err := pull_model.GetScheduledMergeByPullID(ctx, pr.ID)
|
|
if err != nil {
|
|
log.Error("%-v GetScheduledMergeByPullID: %v", pr, err)
|
|
return
|
|
}
|
|
if !exists {
|
|
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
|
|
}
|
|
|
|
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()
|
|
}
|
|
|
|
switch pr.Flow {
|
|
case issues_model.PullRequestFlowGithub:
|
|
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
|
|
}
|
|
case issues_model.PullRequestFlowAGit:
|
|
headBranchExist := git.IsReferenceExist(ctx, baseGitRepo.Path, pr.GetGitRefName())
|
|
if !headBranchExist {
|
|
log.Warn("Head branch of auto merge %-v does not exist [HeadRepoID: %d, Branch(Agit): %s]", pr, pr.HeadRepoID, pr.HeadBranch)
|
|
return
|
|
}
|
|
default:
|
|
log.Error("wrong flow type %d", pr.Flow)
|
|
return
|
|
}
|
|
|
|
// Check if all checks succeeded
|
|
pass, err := pull_service.IsPullCommitStatusPass(ctx, pr)
|
|
if err != nil {
|
|
log.Error("%-v IsPullCommitStatusPass: %v", pr, err)
|
|
return
|
|
}
|
|
if !pass {
|
|
log.Info("Scheduled auto merge %-v has unsuccessful status checks", pr)
|
|
return
|
|
}
|
|
|
|
// Merge if all checks succeeded
|
|
doer, err := user_model.GetUserByID(ctx, scheduledPRM.DoerID)
|
|
if err != nil {
|
|
log.Error("Unable to get scheduled User[%d]: %v", scheduledPRM.DoerID, err)
|
|
return
|
|
}
|
|
|
|
perm, err := access_model.GetUserRepoPermission(ctx, pr.HeadRepo, doer)
|
|
if err != nil {
|
|
log.Error("GetUserRepoPermission %-v: %v", pr.HeadRepo, err)
|
|
return
|
|
}
|
|
|
|
if err := pull_service.CheckPullMergeable(ctx, doer, &perm, pr, pull_service.MergeCheckTypeGeneral, false); err != nil {
|
|
if errors.Is(err, pull_service.ErrUserNotAllowedToMerge) {
|
|
log.Info("%-v was scheduled to automerge by an unauthorized user", pr)
|
|
return
|
|
}
|
|
log.Error("%-v CheckPullMergeable: %v", pr, err)
|
|
return
|
|
}
|
|
|
|
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
|
|
}
|
|
|
|
if scheduledPRM.DeleteBranchAfterMerge {
|
|
err := repo_service.DeleteBranchAfterMerge(ctx, doer, pr, headGitRepo)
|
|
if err != nil {
|
|
log.Error("%d repo_service.DeleteBranchIfUnused: %v", pr.ID, err)
|
|
}
|
|
}
|
|
}
|