Add custom branch support to wp scaffold package-readme command (#206)

Co-authored-by: Pascal Birchler <pascal.birchler@gmail.com>

Author: wojsmol

features/scaffold-package-readme.feature

@@ -56,6 +56,33 @@ Feature: Scaffold a README.md file for an existing package
       Success: Uninstalled package.
       """
 
+  Scenario: Scaffold a README.md based with custom repository branch
+    Given an empty directory
+
+    When I run `wp package path`
+    Then save STDOUT as {PACKAGE_PATH}
+
+    When I run `wp scaffold package wp-cli/custom-branch`
+    Then STDOUT should contain:
+      """
+      Success: Created package readme.
+      """
+    # `wp scaffold package-readme --force` returns a warning
+    And I try `wp scaffold package-readme {PACKAGE_PATH}/local/wp-cli/custom-branch --branch=custom --force`
+    And the {PACKAGE_PATH}/local/wp-cli/custom-branch/README.md file should exist
+    And the {PACKAGE_PATH}/local/wp-cli/custom-branch/README.md file should contain:
+      """
+      Installing this package requires WP-CLI v2.5 or greater. Update to the latest stable release with `wp cli update`.
+      """
+    And the {PACKAGE_PATH}/local/wp-cli/custom-branch/README.md file should contain:
+      """
+      [![Build Status](https://travis-ci.org/wp-cli/custom-branch.svg?branch=custom)
+      """
+    And the {PACKAGE_PATH}/local/wp-cli/custom-branch/README.md file should contain:
+      """
+      *This README.md is generated dynamically from the project's codebase
+      """
+
   Scenario: Scaffold a README.md requiring a nightly build
     Given an empty directory
 

src/ScaffoldPackageCommand.php

@@ -216,6 +216,9 @@ public function package( $args, $assoc_args ) {
 	 * [--force]
 	 * : Overwrite the readme if it already exists.
 	 *
+	 * [--branch=<branch>]
+	 * : Name of default branch of the underlaying repository. Defaults to master.
+	 *
 	 * @when before_wp_load
 	 * @subcommand package-readme
 	 */
@@ -230,7 +233,8 @@ public function package_readme( $args, $assoc_args ) {
 			WP_CLI::error( 'Invalid composer.json in package directory.' );
 		}
 
-		$force = Utils\get_flag_value( $assoc_args, 'force' );
+		$force  = Utils\get_flag_value( $assoc_args, 'force' );
+		$branch = Utils\get_flag_value( $assoc_args, 'branch', 'master' );
 
 		$package_root  = dirname( dirname( __FILE__ ) );
 		$template_path = $package_root . '/templates/';
@@ -256,10 +260,10 @@ public function package_readme( $args, $assoc_args ) {
 				$shields[] = "[![Testing](https://github.com/{$readme_args['package_name']}/actions/workflows/testing.yml/badge.svg)](https://github.com/{$readme_args['package_name']}/actions/workflows/testing.yml)";
 			}
 			if ( file_exists( $package_dir . '/.travis.yml' ) ) {
-				$shields[] = "[![Build Status](https://travis-ci.org/{$readme_args['package_name']}.svg?branch=master)](https://travis-ci.org/{$readme_args['package_name']})";
+				$shields[] = "[![Build Status](https://travis-ci.org/{$readme_args['package_name']}.svg?branch={$branch})](https://travis-ci.org/{$readme_args['package_name']})";
 			}
 			if ( file_exists( $package_dir . '/circle.yml' ) ) {
-				$shields[] = "[![CircleCI](https://circleci.com/gh/{$readme_args['package_name']}/tree/master.svg?style=svg)](https://circleci.com/gh/{$readme_args['package_name']}/tree/master)";
+				$shields[] = "[![CircleCI](https://circleci.com/gh/{$readme_args['package_name']}/tree/{$branch}.svg?style=svg)](https://circleci.com/gh/{$readme_args['package_name']}/tree/{$branch})";
 			}
 
 			if ( count( $shields ) ) {