Tag all cache services with "cache.provider"

Author: Nyholm

src/CacheBundle.php

@@ -29,6 +29,7 @@ public function build(ContainerBuilder $container)
     {
         parent::build($container);
 
+        $container->addCompilerPass(new Compiler\CacheTaggingPass());
         $container->addCompilerPass(new Compiler\SessionSupportCompilerPass());
         $container->addCompilerPass(new Compiler\DoctrineSupportCompilerPass());
 

src/DependencyInjection/CacheExtension.php

@@ -53,8 +53,32 @@ public function load(array $configs, ContainerBuilder $container)
         if ($container->getParameter('kernel.debug')) {
             $loader->load('data-collector.yml');
         }
+
+        $serviceIds = array();
+        $this->findServiceIds($config, $serviceIds);
+        $container->setParameter('cache.provider.serviceIds', $serviceIds);
     }
 
+    /**
+     * Find service ids that we configured.
+     *
+     * @param array $config
+     * @param array $serviceIds
+     */
+    protected function findServiceIds(array $config, array &$serviceIds)
+    {
+        foreach ($config as $name=>$value) {
+            if (is_array($value)) {
+                $this->findServiceIds($value, $serviceIds);
+            } elseif ($name === 'service_id') {
+                $serviceIds[] = $value;
+            }
+        }
+    }
+
+    /**
+     * @return string
+     */
     public function getAlias()
     {
         return 'cache';

src/DependencyInjection/Compiler/CacheTaggingPass.php

@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * This file is part of php-cache\cache-bundle package.
+ *
+ * (c) 2015-2015 Aaron Scherer <aequasi@gmail.com>, Tobias Nyholm <tobias.nyholm@gmail.com>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace Cache\CacheBundle\DependencyInjection\Compiler;
+
+use Cache\CacheBundle\Cache\LoggingCachePool;
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Reference;
+
+/**
+ * Make sure to tag all cache provider used.
+ *
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+class CacheTaggingPass implements CompilerPassInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function process(ContainerBuilder $container)
+    {
+        // get service ids form parameters
+        $serviceIds = $container->getParameter('cache.provider.serviceIds');
+
+        foreach ($serviceIds as $id) {
+
+            $def = $container->findDefinition($id);
+            if (!$def->hasTag('cache.provider')) {
+                $def->addTag('cache.provider');
+            }
+        }
+    }
+}