Added an events to the drush tome-aws:deploy

Added an "events" despatched to drush tome-aws:deploy as to subscribe to them in other modules.

src/Commands/Deploy.php

@@ -4,7 +4,9 @@ namespace Drupal\tome_aws\Commands;
 
 use Drupal\Core\StringTranslation\StringTranslationTrait;
 use Drupal\tome_aws\DeployBatch;
+use Drupal\tome_aws\Event\TomeAwsEvents;
 use Drush\Commands\DrushCommands;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 
 /**
  * Contains the tome-aws:deploy command.
@@ -20,14 +22,24 @@ class Deploy extends DrushCommands {
    */
   protected $batch;
 
+  /**
+   * The event dispatcher.
+   *
+   * @var \Symfony\Component\EventDispatcher\EventDispatcherInterface
+   */
+  protected $eventDispatcher;
+
   /**
    * TomeAwsDeployCommand constructor.
    *
    * @param \Drupal\tome_aws\DeployBatch $batch
    *   The batch service.
+   * @param \Symfony\Component\EventDispatcher\EventDispatcherInterface $event_dispatcher
+   *   Event dispatcher service.
    */
-  public function __construct(DeployBatch $batch) {
+  public function __construct(DeployBatch $batch, EventDispatcherInterface $event_dispatcher) {
     $this->batch = $batch;
+    $this->eventDispatcher = $event_dispatcher;
   }
 
   /**
@@ -37,7 +49,6 @@ class Deploy extends DrushCommands {
    * @option title A title to identify this build.
    */
   public function deploy(array $options = ['title' => 'Sent from Tome AWS']) {
-
     if (!$this->batch->checkConfiguration()) {
       $this->io()->error('Tome AWS has not been configured.');
       return 1;
@@ -46,6 +57,8 @@ class Deploy extends DrushCommands {
       $this->io()->error('No static build available for deploy.');
       return 1;
     }
+    $event = new TomeAwsEvents();
+    $this->eventDispatcher->dispatch($event, TomeAwsEvents::DEPLOY_START);
     $batch_builder = $this->batch->getBatch($options['title']);
 
     batch_set($batch_builder->toArray());
@@ -75,6 +88,7 @@ class Deploy extends DrushCommands {
       }
       else {
         $this->io()->success($this->t("Deploy complete!"));
+        $this->eventDispatcher->dispatch($event, TomeAwsEvents::DEPLOY_FINISHED);
       }
     }
   }