Provide drupal:scaffold command. Keep drupal-scaffold as BC layer

Author: webflo

src/CommandProvider.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace DrupalComposer\DrupalScaffold;
+
+use Composer\Plugin\Capability\CommandProvider as CommandProviderCapability;
+
+class CommandProvider implements CommandProviderCapability {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getCommands() {
+    return [
+      new DrupalScaffoldCommand()
+    ];
+  }
+
+}

src/DrupalScaffoldCommand.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace DrupalComposer\DrupalScaffold;
+
+use Composer\Command\BaseCommand;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class DrupalScaffoldCommand extends BaseCommand {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function configure() {
+    parent::configure();
+    $this
+      ->setName('drupal:scaffold')
+      ->setAliases(['drupal-scaffold'])
+      ->setDescription('Update the Drupal scaffold files.');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function execute(InputInterface $input, OutputInterface $output) {
+    $handler = new Handler($this->getComposer(), $this->getIO());
+    $handler->downloadScaffold();
+    // Generate the autoload.php file after generating the scaffold files.
+    $handler->generateAutoload();
+  }
+
+}

src/Plugin.php

@@ -13,13 +13,14 @@
 use Composer\IO\IOInterface;
 use Composer\Plugin\CommandEvent;
 use Composer\Plugin\PluginEvents;
+use Composer\Plugin\Capable;
 use Composer\Plugin\PluginInterface;
 use Composer\Script\ScriptEvents;
 
 /**
  * Composer plugin for handling drupal scaffold.
  */
-class Plugin implements PluginInterface, EventSubscriberInterface {
+class Plugin implements PluginInterface, EventSubscriberInterface, Capable {
 
   /**
    * @var \DrupalComposer\DrupalScaffold\Handler
@@ -37,15 +38,22 @@ public function activate(Composer $composer, IOInterface $io) {
     $this->handler = new Handler($composer, $io);
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function getCapabilities() {
+    return array(
+      'Composer\Plugin\Capability\CommandProvider' => 'DrupalComposer\DrupalScaffold\CommandProvider',
+    );
+  }
+
   /**
    * {@inheritdoc}
    */
   public static function getSubscribedEvents() {
     return array(
       PackageEvents::POST_PACKAGE_INSTALL => 'postPackage',
       PackageEvents::POST_PACKAGE_UPDATE => 'postPackage',
-      //PackageEvents::POST_PACKAGE_UNINSTALL => 'postPackage',
-      //ScriptEvents::POST_INSTALL_CMD => 'postCmd',
       ScriptEvents::POST_UPDATE_CMD => 'postCmd',
       PluginEvents::COMMAND => 'cmdBegins',
     );
@@ -78,16 +86,4 @@ public function postCmd(\Composer\Script\Event $event) {
     $this->handler->onPostCmdEvent($event);
   }
 
-  /**
-   * Script callback for putting in composer scripts to download the
-   * scaffold files.
-   *
-   * @param \Composer\Script\Event $event
-   */
-  public static function scaffold(\Composer\Script\Event $event) {
-    $handler = new Handler($event->getComposer(), $event->getIO());
-    $handler->downloadScaffold();
-    // Generate the autoload.php file after generating the scaffold files.
-    $handler->generateAutoload();
-  }
 }