Set merge as optional

git.go

@@ -109,7 +109,7 @@ var (
 )
 
 // Create new pull request
-func (ghApp *GitHubApp) NewPullRequest(source, target, title, body string) error {
+func (ghApp *GitHubApp) NewPullRequest(source, target, title, body string, merge bool) error {
 	ctx := context.Background()
 
 	// Create PR
@@ -126,34 +126,31 @@ func (ghApp *GitHubApp) NewPullRequest(source, target, title, body string) error
 		return err
 	}
 
-	// Optionally wait for checks to pass on the PR's head commit before merging.
-	if ghApp.Config.WaitForChecksToPass {
-		err = waitForChecksToPass(ctx, ghApp.githubClient, "kununu", ghApp.Config.repoName, pr.GetHead().GetSHA())
-		if err != nil {
-			return err
+	if merge {
+
+		if ghApp.Config.WaitForChecksToPass {
+			err = waitForChecksToPass(ctx, ghApp.githubClient, "kununu", ghApp.Config.repoName, pr.GetHead().GetSHA())
+			if err != nil {
+				return err
+			}
 		}
+
+		// Merge PR
+		return mergePullRequest(ctx, ghApp.githubClient, "kununu", ghApp.Config.repoName, pr.GetNumber())
 	}
 
-	// Merge PR
-	return mergePullRequest(ctx, ghApp.githubClient, "kununu", ghApp.Config.repoName, pr.GetNumber())
+	return nil
+
 }
 
-// waitForChecksToPass polls the GitHub Actions check runs for the given ref
-// until they all complete successfully, one of them fails, or the timeout is
-// reached. It relies on the Check Runs API (what Actions report to) rather than
-// the legacy commit-status API, which does not reflect Actions results.
 func waitForChecksToPass(ctx context.Context, client *github.Client, owner, repo, ref string) error {
-	// Bound the whole wait — and every API call made within it — so a stalled
-	// request can never hang indefinitely.
 	ctx, cancel := context.WithTimeout(ctx, checksWaitTimeout)
 	defer cancel()
 
 	ticker := time.NewTicker(checksPollInterval)
 	defer ticker.Stop()
 
 	for {
-		// Wait one interval before polling so GitHub has time to register the
-		// check runs for a freshly created PR.
 		select {
 		case <-ctx.Done():
 			return fmt.Errorf("timeout while waiting for checks to pass: %w", ctx.Err())
@@ -173,15 +170,11 @@ func waitForChecksToPass(ctx context.Context, client *github.Client, owner, repo
 			}
 			switch run.GetConclusion() {
 			case "success", "skipped", "neutral":
-				// Passed (or intentionally not blocking).
 			default:
-				// failure, cancelled, timed_out, action_required, stale...
 				return fmt.Errorf("check %q did not pass: %s", run.GetName(), run.GetConclusion())
 			}
 		}
 
-		// Require at least one completed check so we never merge before CI has
-		// started. Once every registered check has completed successfully, done.
 		if !pending && result.GetTotal() > 0 {
 			return nil
 		}

git_test.go

@@ -167,7 +167,7 @@ func TestNewPullRequestSkipsChecksWhenDisabled(t *testing.T) {
 		githubClient: newTestClient(t, handler),
 	}
 
-	if err := ghApp.NewPullRequest("feature", "main", "title", "body"); err != nil {
+	if err := ghApp.NewPullRequest("feature", "main", "title", "body", true); err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
 	if checksCalled {
@@ -201,7 +201,7 @@ func TestNewPullRequestWaitsForChecksWhenEnabled(t *testing.T) {
 		githubClient: newTestClient(t, handler),
 	}
 
-	if err := ghApp.NewPullRequest("feature", "main", "title", "body"); err != nil {
+	if err := ghApp.NewPullRequest("feature", "main", "title", "body", true); err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
 	if !checksCalled {
@@ -211,3 +211,35 @@ func TestNewPullRequestWaitsForChecksWhenEnabled(t *testing.T) {
 		t.Errorf("PR was not merged")
 	}
 }
+
+func TestNewPullRequestSkipsMergeWhenNotRequested(t *testing.T) {
+	var checksCalled, mergeCalled bool
+
+	handler := http.NewServeMux()
+	handler.HandleFunc("POST /repos/kununu/test-repo/pulls", func(w http.ResponseWriter, r *http.Request) {
+		w.Write([]byte(`{"number":7,"head":{"sha":"abc123"}}`))
+	})
+	handler.HandleFunc("GET /repos/kununu/test-repo/commits/{ref}/check-runs", func(w http.ResponseWriter, r *http.Request) {
+		checksCalled = true
+		w.Write([]byte(`{"total_count":1,"check_runs":[{"name":"build","status":"completed","conclusion":"success"}]}`))
+	})
+	handler.HandleFunc("PUT /repos/kununu/test-repo/pulls/7/merge", func(w http.ResponseWriter, r *http.Request) {
+		mergeCalled = true
+		w.Write([]byte(`{"merged":true}`))
+	})
+
+	ghApp := &GitHubApp{
+		Config:       &GitHubAppConfig{repoName: "test-repo", WaitForChecksToPass: true},
+		githubClient: newTestClient(t, handler),
+	}
+
+	if err := ghApp.NewPullRequest("feature", "main", "title", "body", false); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if checksCalled {
+		t.Errorf("check runs were polled even though merge was not requested")
+	}
+	if mergeCalled {
+		t.Errorf("PR was merged even though merge was not requested")
+	}
+}