#7 Add support for composer 2 while still supporting composer 1

composer.json

@@ -18,8 +18,8 @@
     },
     "require": {
         "php": ">=7.1",
-        "composer/composer": "^1.10",
-        "composer-plugin-api": "^1.0.0",
+        "composer/composer": "^1.0 || ^2.0",
+        "composer-plugin-api": "^1.0 || ^2.0",
         "oohology/gitignorewriter": "^1.1"
     },
     "minimum-stability": "dev",

src/Plugin.php

@@ -30,6 +30,18 @@ class Plugin implements PluginInterface, EventSubscriberInterface, Capable {
     $this->handler = new Handler($composer, $io);
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function deactivate(Composer $composer, IOInterface $io) {
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function uninstall(Composer $composer, IOInterface $io) {
+  }
+
   /**
    * {@inheritdoc}
    */