Add a command to generate the cache class from the classes.map file

Command/CreateClassCacheCommand.php

@@ -0,0 +1,56 @@
+<?php
+
+/*
+ * This file is part of the Sonata package.
+ *
+ * (c) Thomas Rabaix <thomas.rabaix@sonata-project.org>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Sonata\AdminBundle\Command;
+
+use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Output\Output;
+use Symfony\Component\ClassLoader\ClassCollectionLoader;
+
+class CreateClassCacheCommand extends ContainerAwareCommand
+{
+
+    public function configure()
+    {
+        $this->setName('cache:create-cache-class');
+        $this->setDescription('Generate the classes.php files');
+    }
+
+    public function execute(InputInterface $input, OutputInterface $output)
+    {
+        $kernel = $this->getContainer()->get('kernel');
+
+        $classmap = $kernel->getCacheDir().'/classes.map';
+
+        if (!is_file($classmap)) {
+            throw new \RuntimeException(sprintf('The file %s does not exist', $classmap));
+        }
+
+        $name = 'classes';
+        $extension = '.php';
+
+        $output->write("<info>Writing cache file ...</info>");
+        ClassCollectionLoader::load(
+            include($classmap),
+            $kernel->getCacheDir(),
+            $name,
+            $kernel->isDebug(),
+            false,
+            $extension
+        );
+
+        $output->writeln(" done!");
+    }
+}