<?php

namespace Orbt\Bundle\ResourceMirrorBundle\DependencyInjection;

use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
use Symfony\Component\Config\FileLocator;
use Symfony\Component\HttpKernel\DependencyInjection\Extension;
use Symfony\Component\DependencyInjection\Loader;

/**
 * This is the class that loads and manages your bundle configuration
 *
 * To learn more see {@link http://symfony.com/doc/current/cookbook/bundles/extension.html}
 */
class OrbtResourceMirrorExtension extends Extension
{
    /**
     * {@inheritDoc}
     */
    public function load(array $configs, ContainerBuilder $container)
    {
        $configuration = new Configuration();
        $config = $this->processConfiguration($configuration, $configs);

        if (!is_dir($config['directory']) || !is_writable($config['directory'])) {
            throw new InvalidArgumentException('Resource mirror directory must be writable.');
        }

        $container->setParameter('orbt_resource_mirror.base_url', $config['base_url']);
        $container->setParameter('orbt_resource_mirror.directory', $config['directory']);

        $loader = new Loader\XmlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
        $loader->load('services.xml');
    }
}

<?php

namespace Orbt\Bundle\ResourceMirrorBundle\DependencyInjection;

use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
use Symfony\Component\Config\FileLocator;
use Symfony\Component\HttpKernel\DependencyInjection\Extension;
use Symfony\Component\DependencyInjection\Loader;

/**
 * This is the class that loads and manages your bundle configuration
 *
 * To learn more see {@link http://symfony.com/doc/current/cookbook/bundles/extension.html}
 */
class OrbtResourceMirrorExtension extends Extension
{
    /**
     * {@inheritDoc}
     */
    public function load(array $configs, ContainerBuilder $container)
    {
        $configuration = new Configuration();
        $config = $this->processConfiguration($configuration, $configs);

        if (!is_dir($config['directory']) || !is_writable($config['directory'])) {
            throw new InvalidArgumentException('Resource mirror directory must be writable.');
        }

        $container->setParameter('orbt_resource_mirror.base_url', $config['base_url']);
        $container->setParameter('orbt_resource_mirror.directory', realpath($config['directory']));

        $loader = new Loader\XmlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
        $loader->load('services.xml');
    }
}

Set normalized directory path as parameter.
Set normalized directory path as parameter.
