Update

trunk/_vendor/doctrine/doctrine-migrations-bundle/Command/MigrationsDiffDoctrineCommand.php

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+<?php
+
+/*
+ * This file is part of the Doctrine MigrationsBundle
+ *
+ * The code was originally distributed inside the Symfony framework.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ * (c) Doctrine Project, Benjamin Eberlei <kontakt@beberlei.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Doctrine\Bundle\MigrationsBundle\Command;
+
+use Doctrine\Bundle\DoctrineBundle\Command\Proxy\DoctrineCommandHelper;
+use Doctrine\DBAL\Migrations\Tools\Console\Command\DiffCommand;
+use Doctrine\DBAL\Sharding\PoolingShardConnection;
+use LogicException;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * Command for generate migration classes by comparing your current database schema
+ * to your mapping information.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Jonathan H. Wage <jonwage@gmail.com>
+ */
+class MigrationsDiffDoctrineCommand extends DiffCommand
+{
+    protected function configure()
+    {
+        parent::configure();
+
+        $this
+            ->setName('doctrine:migrations:diff')
+            ->addOption('em', null, InputOption::VALUE_OPTIONAL, 'The entity manager to use for this command.')
+            ->addOption('shard', null, InputOption::VALUE_REQUIRED, 'The shard connection to use for this command.')
+        ;
+    }
+
+    public function execute(InputInterface $input, OutputInterface $output)
+    {
+        DoctrineCommandHelper::setApplicationEntityManager($this->getApplication(), $input->getOption('em'));
+
+        if ($input->getOption('shard')) {
+            $connection = $this->getApplication()->getHelperSet()->get('db')->getConnection();
+            if (!$connection instanceof PoolingShardConnection) {
+                throw new LogicException(sprintf("Connection of EntityManager '%s' must implements shards configuration.", $input->getOption('em')));
+            }
+
+            $connection->connect($input->getOption('shard'));
+        }
+
+        $configuration = $this->getMigrationConfiguration($input, $output);
+        DoctrineCommand::configureMigrations($this->getApplication()->getKernel()->getContainer(), $configuration);
+
+        return parent::execute($input, $output);
+    }
+}