Jetpack Autoloader Laravel Package

Getting Started

Minimal Setup

1. Installation Add the package via Composer in your Laravel project:

   composer require automattic/jetpack-autoloader
   

   Register the autoloader in composer.json under autoload:

   "autoload": {
       "psr-4": {
           "App\\": "app/",
           "Jetpack\\": "vendor/automattic/jetpack-autoloader/src/"
       }
   }
   

   Run composer dump-autoload.

2. First Use Case Use Jetpack’s core classes directly in Laravel:

   use Jetpack\Modules\Module;
   use Jetpack\Modules\ModuleLoader;
   
   // Load a Jetpack module (e.g., "stats")
   $moduleLoader = new ModuleLoader();
   $moduleLoader->load('stats');
   

Implementation Patterns

1. Module Integration

• Lazy Loading: Load Jetpack modules on-demand to avoid performance overhead:

  if (ModuleLoader::isModuleActive('stats')) {
      $stats = new \Jetpack\Modules\Stats\Module();
      $stats->init();
  }
  

• Dependency Injection: Bind Jetpack services to Laravel’s container:

  $this->app->singleton(\Jetpack\Modules\ModuleLoader::class, function ($app) {
      return new ModuleLoader($app['config']);
  });
  

2. Configuration

• Override Jetpack defaults via Laravel’s config/jetpack.php:

  return [
      'modules' => [
          'stats' => [
              'enabled' => env('JETPACK_STATS_ENABLED', false),
          ],
      ],
  ];
  

3. Event Listeners

• Hook into Jetpack events (e.g., module activation/deactivation):

  use Jetpack\Modules\ModuleEvent;
  
  event(new ModuleEvent('stats', 'activated'));
  

4. API Integration

• Use Jetpack’s REST API endpoints in Laravel routes:

  Route::get('/jetpack/stats', function () {
      return \Jetpack\Modules\Stats\API::getStats();
  });
  

Gotchas and Tips

Pitfalls

• Namespace Conflicts: Jetpack uses Jetpack\ namespace; ensure no collisions with your app.
• Module Dependencies: Some Jetpack modules require WordPress core. Test in a WordPress environment first.
• Caching: Jetpack’s autoloader may bypass Laravel’s OPcache. Use composer dump-autoload --optimize for production.

Debugging

• Class Not Found: Verify composer dump-autoload was run and PSR-4 paths are correct.
• Module Errors: Check Jetpack’s logs (/wp-content/jetpack/logs/ if WordPress is installed).

Extension Points

• Custom Modules: Extend Jetpack’s module system by creating a subclass of Jetpack\Modules\Module.
• Hooks: Use Jetpack’s filter/action system (e.g., jetpack_module_loaded) for custom logic.

Performance

• Disable Unused Modules: Set enabled: false in config/jetpack.php for unused modules.
• Autoload Excludes: Exclude Jetpack classes from PSR-4 if unused:

  "autoload-dev": {
      "psr-4": {
          "Jetpack\\": "vendor/automattic/jetpack-autoloader/src/"
      }
  }