generate xml repository service definition for all entities

RepositoryGeneratorCommand.php

<?php
/**
 * @author: shengjie
 * @date: 16/07/15 16:10
 * @file: GenerateCommand.php
 * @Licence: MIT
 */

namespace AppBundle\Command;


use Doctrine\ORM\Mapping\ClassMetadata;
use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

class RepositoryGeneratorCommand extends ContainerAwareCommand
{
    /**
     * Configures the current command.
     */
    protected function configure()
    {
        $this->setName("app:generate:repository_configuration");
    }

    protected function getServiceNameFromClassName($className)
    {
        $parts = explode('\\', $className);
        $shortClassName = end($parts);
        $underscored = strtolower(preg_replace('/([A-Z])/', '_$1', lcfirst($shortClassName)));
        $serviceName = "repository." . $underscored;
        return $serviceName;
    }

    protected function getTagsFromClassName($class)
    {
        $tags = [];
        return implode('', array_map(function ($name) {
            return '<tag name="' . $name . '"/>"';
        }, $tags));
    }

    protected function execute(InputInterface $input, OutputInterface $output)
    {
        $em = $this->getContainer()->get('doctrine.orm.default_entity_manager');

        /** @var ClassMetadata[] $metaDatas */
        $metaDatas = $em->getMetadataFactory()->getAllMetadata();
        $skip = 0;

        $lines = ['<?xml version="1.0" ?>
<container xmlns="http://symfony.com/schema/dic/services"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
    <services>'];

        foreach ($metaDatas as $metadata) {
            if ($metadata->isMappedSuperclass) continue;

            $repositoryClassName = $metadata->customRepositoryClassName;

            if ($repositoryClassName === null) {
                $configuration = $em->getConfiguration();
                $repositoryClassName = $configuration->getDefaultRepositoryClassName();
            }

            $lines[] = sprintf(
                "\t\t" . '<service id="%s" class="%s" factory-service="doctrine.orm.default_entity_manager" factory-method="getRepository"><argument>%s</argument>%s</service>',
                $this->getServiceNameFromClassName($metadata->name),
                ltrim($repositoryClassName, '\\'),
                $metadata->name,
                $this->getTagsFromClassName($metadata->name)
            );
        }

        $lines[] = '</services>
</container>';

        file_put_contents(__DIR__ . "/../Resources/config/services.repository.xml", implode("\n", $lines));
    }
}