Change default transport to 'null' which does not require any dependencies after install

Author: igrybkov

Model/Config/Source/Transport.php

@@ -20,6 +20,7 @@ public function toOptionArray()
             ['value' => 'sqs', 'label' => __('Amazon AWS SQS')],
             ['value' => 'redis', 'label' => __('Redis')],
             ['value' => 'dbal', 'label' => __('Doctrine DBAL')],
+            ['value' => 'null', 'label' => __('Null transport')],
         ];
     }
 }

Model/EnqueueManager.php

@@ -141,6 +141,9 @@ public function buildConfig()
             case 'dbal':
                 $config['transport'] = $this->getDbalConfig();
                 break;
+            case 'null':
+                $config['transport'] = $this->getNullConfig();
+                break;
             default:
                 throw new \LogicException(sprintf('Unknown transport: "%s"', $name));
         }
@@ -281,4 +284,12 @@ public function getDbalConfig()
             'lazy' => (bool) $this->scopeConfig->getValue('enqueue/dbal/lazy'),
         ]];
     }
+
+    /**
+     * @return array
+     */
+    private function getNullConfig(): array
+    {
+        return ['null' => []];
+    }
 }

etc/config.xml

@@ -4,7 +4,7 @@
     <default>
         <enqueue>
             <transport>
-                <default>rabbitmq_amqp</default>
+                <default>null</default>
             </transport>
             <client>
                 <prefix>enqueue</prefix>