fix(actions): call automerge service on successful commit state

- Backport of https://github.com/go-gitea/gitea/pull/30225

(cherry picked from commit 36f4732e6a)

models/fixtures/action_run.yml

@@ -413,3 +413,23 @@
       },
       "total_commits": 0
     }
+-
+  id: 891
+  title: "update actions"
+  repo_id: 1
+  owner_id: 1
+  workflow_id: "artifact.yaml"
+  index: 187
+  trigger_user_id: 1
+  ref: "refs/heads/branch2"
+  commit_sha: "985f0301dba5e7b34be866819cd15ad3d8f508ee"
+  event: "push"
+  is_fork_pull_request: 0
+  status: 1 # success
+  started: 1683636528
+  stopped: 1683636626
+  created: 1683636108
+  updated: 1683636626
+  need_approval: 0
+  approved_by: 0
+  event_payload: '{"head_commit":{"id":"5f22f7d0d95d614d25a5b68592adb345a4b5c7fd"}}'

models/fixtures/action_run_job.yml

@@ -26,3 +26,17 @@
   status: 1
   started: 1683636528
   stopped: 1683636626
+-
+  id: 292
+  run_id: 891
+  repo_id: 1
+  owner_id: 1
+  commit_sha: 985f0301dba5e7b34be866819cd15ad3d8f508ee
+  is_fork_pull_request: 0
+  name: job_2
+  attempt: 1
+  job_id: job_2
+  task_id: 47
+  status: 1
+  started: 1683636528
+  stopped: 1683636626

services/actions/commit_status.go

@@ -12,10 +12,10 @@ import (
 	"code.gitea.io/gitea/models/db"
 	git_model "code.gitea.io/gitea/models/git"
 	user_model "code.gitea.io/gitea/models/user"
-	git "code.gitea.io/gitea/modules/git"
 	"code.gitea.io/gitea/modules/log"
 	api "code.gitea.io/gitea/modules/structs"
 	webhook_module "code.gitea.io/gitea/modules/webhook"
+	commitstatus_service "code.gitea.io/gitea/services/repository/commitstatus"
 
 	"github.com/nektos/act/pkg/jobparser"
 )
@@ -118,22 +118,15 @@ func createCommitStatus(ctx context.Context, job *actions_model.ActionRunJob) er
 	}
 
 	creator := user_model.NewActionsUser()
-	commitID, err := git.NewIDFromString(sha)
-	if err != nil {
-		return fmt.Errorf("HashTypeInterfaceFromHashString: %w", err)
-	}
-	if err := git_model.NewCommitStatus(ctx, git_model.NewCommitStatusOptions{
-		Repo:    repo,
-		SHA:     commitID,
-		Creator: creator,
-		CommitStatus: &git_model.CommitStatus{
+	if err := commitstatus_service.CreateCommitStatus(ctx, repo, creator,
+		sha,
+		&git_model.CommitStatus{
 			SHA:         sha,
 			TargetURL:   fmt.Sprintf("%s/jobs/%d", run.Link(), index),
 			Description: description,
 			Context:     ctxname,
 			CreatorID:   creator.ID,
 			State:       state,
-		},
 		}); err != nil {
 		return fmt.Errorf("NewCommitStatus: %w", err)
 	}

tests/integration/actions_commit_status_test.go

@@ -0,0 +1,48 @@
+// Copyright 20124 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package integration
+
+import (
+	"net/url"
+	"testing"
+
+	actions_model "code.gitea.io/gitea/models/actions"
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/services/actions"
+	"code.gitea.io/gitea/services/automerge"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestActionsAutomerge(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		assert.True(t, setting.Actions.Enabled, "Actions should be enabled")
+
+		ctx := db.DefaultContext
+
+		user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+		pr := unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: 2})
+		job := unittest.AssertExistsAndLoadBean(t, &actions_model.ActionRunJob{ID: 292})
+
+		assert.False(t, pr.HasMerged, "PR should not be merged")
+		assert.Equal(t, issues_model.PullRequestStatusMergeable, pr.Status, "PR should be mergable")
+
+		scheduled, err := automerge.ScheduleAutoMerge(ctx, user, pr, repo_model.MergeStyleMerge, "Dummy")
+
+		assert.NoError(t, err, "PR should be scheduled for automerge")
+		assert.True(t, scheduled, "PR should be scheduled for automerge")
+
+		actions.CreateCommitStatus(ctx, job)
+
+		pr = unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: 2})
+
+		assert.True(t, pr.HasMerged, "PR should be merged")
+	},
+	)
+}