fix(composer): detect if TopFloor is installed

composer.json

@@ -20,6 +20,7 @@
   },
   "require": {
     "composer-plugin-api": "^2.3",
+    "picocms/pico": "*",
     "topfloor/composer-cleanup-vcs-dirs": "^1.1"
   },
   "replace": {

src/ParentPlugin.php

@@ -0,0 +1,52 @@
+<?php
+
+/**
+ * SPDX-License-Identifier: EUPL-1.2
+ * Authors: see /README.md
+ */
+
+namespace Seacms\ComposerInstaller;
+
+use Composer\Composer;
+use Composer\IO\IOInterface;
+use Composer\Plugin\PluginInterface;
+use TopFloor\ComposerCleanupVcsDirs\Plugin as TopFloorPlugin;
+
+if (class_exists(TopFloorPlugin::class,false)){
+    abstract class ParentPlugin extends TopFloorPlugin
+    {
+        /**
+         * const to test if TopFloorPlugin
+         * @var bool
+         */
+        protected const IS_TOP_FLOOR_PLUGIN = true;
+    }
+} else {
+    abstract class ParentPlugin implements PluginInterface
+    {
+        
+        /**
+         * const to test if TopFloorPlugin
+         * @var bool
+         */
+        protected const IS_TOP_FLOOR_PLUGIN = false;
+        
+        /**
+         * Deactivation hook.
+         *
+         * @param Composer $composer
+         * @param IOInterface $io
+         */
+        public function deactivate(Composer $composer, IOInterface $io) {
+        }
+
+        /**
+         * Uninstall hook.
+         *
+         * @param Composer $composer
+         * @param IOInterface $io
+         */
+        public function uninstall(Composer $composer, IOInterface $io) {
+        }
+    }
+}

src/Plugin.php

@@ -17,7 +17,7 @@ use Composer\Repository\VcsRepository;
 use Exception;
 use Seacms\ComposerInstaller\Handler;
 use Seacms\ComposerInstaller\NotFoundFileException;
-use TopFloor\ComposerCleanupVcsDirs\Plugin as ParentPlugin;
+use Seacms\ComposerInstaller\ParentPlugin;
 
 /**
  * Composer plugin to install or not packages from local path
@@ -35,6 +35,7 @@ class Plugin extends ParentPlugin
      * @var IOInterface
      */
     protected $io;
+    protected $handler;
 
     /**
      * Apply plugin modifications to Composer
@@ -45,6 +46,10 @@ class Plugin extends ParentPlugin
     public function activate(Composer $composer, IOInterface $io) {
         $this->composer = $composer;
         $this->io = $io;
+        if (!self::IS_TOP_FLOOR_PLUGIN){
+            // do nothing
+            return ;
+        }
         $this->handler = new Handler($composer, $io);
         try {
             list('config' => $config,'path' => $path) = $this->getConfigJsonFile();