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<?php
namespace Drupal\Core\Installer;
use Drupal\Core\DependencyInjection\ContainerBuilder;
use Drupal\Core\DependencyInjection\ServiceProviderInterface;
use Drupal\Core\DependencyInjection\ServiceModifierInterface;
use Symfony\Component\DependencyInjection\Reference;
/**
* Service provider for the early installer environment.
*
* This class is manually added by install_begin_request() via
* $conf['container_service_providers'] and required to prevent various services
* from trying to retrieve data from storages that do not exist yet.
*/
class InstallerServiceProvider extends NormalInstallerServiceProvider implements ServiceProviderInterface, ServiceModifierInterface {
/**
* {@inheritdoc}
*/
public function register(ContainerBuilder $container) {
// Inject the special configuration storage for the installer.
// This special implementation MUST NOT be used anywhere else than the early
// installer environment.
$container->register('config.storage', 'Drupal\Core\Config\InstallStorage');
// Replace services with in-memory implementations.
$container
->register('keyvalue', 'Drupal\Core\KeyValueStore\KeyValueMemoryFactory');
$container
->register('keyvalue.expirable', 'Drupal\Core\KeyValueStore\KeyValueNullExpirableFactory');
// Replace services with no-op implementations.
$container
->register('url_generator', 'Drupal\Core\Routing\NullGenerator')
->addArgument(new Reference('request_stack'));
$container
->register('path_processor_manager', 'Drupal\Core\PathProcessor\NullPathProcessorManager');
$container
->register('router.dumper', 'Drupal\Core\Routing\NullMatcherDumper');
// Replace the route builder with an empty implementation.
// @todo Convert installer steps into routes; add an installer.routing.yml.
$definition = $container->getDefinition('router.builder');
$definition->setClass('Drupal\Core\Installer\InstallerRouteBuilder')
// The core router builder, but there is no reason here to be lazy, so
// we don't need to ship with a custom proxy class.
->setLazy(FALSE);
parent::register($container);
}
/**
* {@inheritdoc}
*/
public function alter(ContainerBuilder $container) {
// Disable Twig cache (php storage does not exist yet).
$twig_config = $container->getParameter('twig.config');
$twig_config['cache'] = FALSE;
$container->setParameter('twig.config', $twig_config);
// No service may persist when the early installer kernel is rebooted into
// the production environment.
// @todo The DrupalKernel reboot performed by drupal_install_system() is
// actually not a "regular" reboot (like ModuleInstaller::install()), so
// services are not actually persisted.
foreach ($container->findTaggedServiceIds('persist') as $id => $tags) {
$definition = $container->getDefinition($id);
$definition->clearTag('persist');
}
}
}
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