move to php format for Symfony DI config

Author: dmaicher

src/DependencyInjection/ExerciseHTMLPurifierExtension.php

@@ -8,6 +8,7 @@
 use Exercise\HTMLPurifierBundle\HTMLPurifiersRegistryInterface;
 use Symfony\Component\Config\FileLocator;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Loader\PhpFileLoader;
 use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
 use Symfony\Component\DependencyInjection\Reference;
 use Symfony\Component\DependencyInjection\Extension\Extension;
@@ -16,9 +17,9 @@ class ExerciseHTMLPurifierExtension extends Extension
 {
     public function load(array $configs, ContainerBuilder $container): void
     {
-        $loader = new XmlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
+        $loader = new PhpFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
 
-        $loader->load('html_purifier.xml');
+        $loader->load('services.php');
 
         $configs = $this->processConfiguration(new Configuration(), $configs);
 
@@ -30,8 +31,6 @@ public function load(array $configs, ContainerBuilder $container): void
         }
 
         $serializerPaths = [];
-        // Drop when require Symfony > 3.4
-        $registerAlias = method_exists($container, 'registerAliasForArgument');
 
         foreach ($configs['html_profiles'] as $name => $definition) {
             $configId = "exercise_html_purifier.config.$name";
@@ -71,7 +70,7 @@ public function load(array $configs, ContainerBuilder $container): void
                 $serializerPaths[] = $definition['config']['Cache.SerializerPath'];
             }
 
-            if ($registerAlias && $default) {
+            if ($default) {
                 $container->registerAliasForArgument($id, \HTMLPurifier::class, "$name.purifier");
             }
         }

src/Resources/config/html_purifier.xml

@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Symfony\Component\DependencyInjection\Loader\Configurator;
+
+
+use Exercise\HTMLPurifierBundle\CacheWarmer\SerializerCacheWarmer;
+use Exercise\HTMLPurifierBundle\Form\TypeExtension\HTMLPurifierTextTypeExtension;
+use Exercise\HTMLPurifierBundle\HTMLPurifiersRegistryInterface;
+use Exercise\HTMLPurifierBundle\Twig\HTMLPurifierExtension;
+use Exercise\HTMLPurifierBundle\Twig\HTMLPurifierRuntime;
+use Symfony\Component\Form\Extension\Core\Type\TextType;
+
+return function (ContainerConfigurator $container): void {
+    $container->services()
+        ->set('exercise_html_purifier.cache_warmer.serializer', SerializerCacheWarmer::class)
+            ->tag('kernel.cache_warmer')
+            ->args([
+                abstract_arg('cache paths'),
+                abstract_arg('profiles'),
+                service(HTMLPurifiersRegistryInterface::class),
+                service('filesystem'),
+            ])
+
+        ->set('exercise_html_purifier.form.text_type_extension', HTMLPurifierTextTypeExtension::class)
+            ->tag('form.type_extension', ['extended_type' => TextType::class])
+            ->args([
+                service(HTMLPurifiersRegistryInterface::class),
+            ])
+
+        ->set('exercise_html_purifier.twig.extension', HTMLPurifierExtension::class)
+            ->tag('twig.extension')
+
+        ->set('exercise_html_purifier.twig.runtime', HTMLPurifierRuntime::class)
+            ->tag('twig.runtime')
+            ->args([
+                service(HTMLPurifiersRegistryInterface::class),
+            ]);
+};