Function createPR

pkg/cli/pr_command.go:760–815

createPR creates a pull request using GitHub CLI and returns the PR number

(branchName, title, body string, verbose bool)

// createPR creates a pull request using GitHub CLI and returns the PR number
func createPR(branchName, title, body string, verbose bool) (int, string, error) {
	if verbose {
		fmt.Fprintln(os.Stderr, console.FormatProgressMessage("Creating PR: "+title))
	}

	// Detect the GitHub host from the git remote so that GitHub Enterprise Server
	// repositories are targeted correctly instead of defaulting to github.com.
	remoteHost := getHostFromOriginRemote()

	// Get the current repository info to ensure PR is created in the correct repo.
	// Use GH_HOST env var instead of --hostname (which is only valid for gh api, not gh repo view).
	repoOutput, err := workflow.RunGHWithHost("Fetching repository info...", remoteHost, "repo", "view", "--json", "owner,name")
	if err != nil {
		return 0, "", fmt.Errorf("failed to get current repository info: %w", err)
	}

	var repoInfo struct {
		Owner struct {
			Login string `json:"login"`
		} `json:"owner"`
		Name string `json:"name"`
	}

	if err := json.Unmarshal(repoOutput, &repoInfo); err != nil {
		return 0, "", fmt.Errorf("failed to parse repository info: %w", err)
	}

	repoSpec := fmt.Sprintf("%s/%s", repoInfo.Owner.Login, repoInfo.Name)

	// Build gh pr create args. Explicitly specifying --repo ensures the PR is created in the
	// current repo (not an upstream fork). Use GH_HOST env var instead of --hostname
	// (which is only valid for gh api, not gh pr create).
	prCreateArgs := []string{"pr", "create", "--repo", repoSpec, "--title", title, "--body", body, "--head", branchName}
	output, err := workflow.RunGHWithHost("Creating pull request...", remoteHost, prCreateArgs...)
	if err != nil {
		// Try to get stderr for better error reporting
		var exitError *exec.ExitError
		if errors.As(err, &exitError) {
			return 0, "", fmt.Errorf("failed to create PR: %w\nOutput: %s\nError: %s", err, string(output), string(exitError.Stderr))
		}
		return 0, "", fmt.Errorf("failed to create PR: %w", err)
	}

	prURL := strings.TrimSpace(string(output))

	// Parse PR number from URL (e.g., https://github.com/owner/repo/pull/123)
	prNumber := 0
	parts := strings.Split(prURL, "/")
	if len(parts) > 0 {
		if num, parseErr := strconv.Atoi(parts[len(parts)-1]); parseErr == nil {
			prNumber = num
		}
	}

	return prNumber, prURL, nil
}