Added possiblity to overrite the destination

README.md

@@ -4,3 +4,14 @@ A library that extends and improves the default options provided by [BackstopJS]
 ### Composer
 
 ``composer require --dev metadrop/backstopjs-addons``
+
+You can override the default destination of the library by adding the following parameter to the extra section 
+of your project's composer.json file:
+
+```json
+"extra": {
+        "backstop-addons": {
+          "destinition": "custom/destinition"  
+        }
+``` 
+

src/InstallerPlugin.php

@@ -47,9 +47,16 @@ public static function getSubscribedEvents()
   public function MoveFiles(Event $event) {
     $composer = $event->getComposer();
 
+    // Source
     $source = $composer->getConfig()->get('vendor-dir') . '/metadrop/backstopjs-addons/addons';
+
+    // Destination
     $root = $composer->getConfig()->get('vendor-dir') . '/..';
-    $destination = $root . '/tests/backstopjs/common/libraries/backstopjs-addons';
+
+    $extra = $composer->getPackage()->getExtra();
+    $backstop_addons_extras = $extra['backstop-addons'] ?? [];
+    $destination = $backstop_addons_extras['destination'] ?? 'tests/backstopjs/common/libraries/backstopjs-addons';
+    $destination = "{$root}/{$destination}";
 
     if (is_dir($destination)) {
       self::deleteDirectoryContents($destination);