function drupal_install_system

Install the base system and any required database drivers.

Separated from the installation of other modules so core system functions can be made available while other modules are installed.

Parameters

array $install_state: An array of information about the current installation state. This is used to set the default language.

File

core/includes/install.inc, line 191

Code

function drupal_install_system($install_state) : void {
  // Remove the service provider of the early installer.
  unset($GLOBALS['conf']['container_service_providers']['InstallerServiceProvider']);
  // Add the normal installer service provider.
  $GLOBALS['conf']['container_service_providers']['InstallerServiceProvider'] = 'Drupal\\Core\\Installer\\NormalInstallerServiceProvider';
  // Get the existing request.
  $request = \Drupal::request();
  // Reboot into a full production environment to continue the installation.
  /** @var \Drupal\Core\Installer\InstallerKernel $kernel */
  $kernel = \Drupal::service('kernel');
  $kernel->shutdown();
  // Have installer rebuild from the disk, rather then building from scratch.
  $kernel->rebuildContainer();
  // Reboot the kernel with new container.
  $kernel->boot();
  $kernel->preHandle($request);
  // Ensure our request includes the session if appropriate.
  if (PHP_SAPI !== 'cli') {
    $request->setSession($kernel->getContainer()
      ->get('session'));
  }
  // Install base system configuration.
  \Drupal::service('config.installer')->installDefaultConfig('core', 'core');
  // Store the installation profile in configuration to populate the
  // 'install_profile' container parameter.
  $config = \Drupal::configFactory()->getEditable('core.extension');
  if ($install_state['parameters']['profile'] === FALSE) {
    $config->clear('profile');
  }
  else {
    $config->set('profile', $install_state['parameters']['profile']);
  }
  $config->save();
  $connection = Database::getConnection();
  $provider = $connection->getProvider();
  // When the database driver is provided by a module, then install that module.
  // This module must be installed before any other module, as it must be able
  // to override any call to hook_schema() or any "backend_overridable" service.
  // In edge cases, a driver module may extend from another driver module (for
  // instance, a module to provide backward compatibility with a database
  // version no longer supported by core). In order for the extended classes to
  // be autoloadable, the extending module should list the extended module in
  // its dependencies, and here the dependencies will be installed as well.
  if ($provider !== 'core') {
    $autoload = $connection->getConnectionOptions()['autoload'] ?? '';
    if (str_contains($autoload, 'src/Driver/Database/')) {
      $kernel->getContainer()
        ->get('module_installer')
        ->install([
        $provider,
      ], TRUE);
    }
  }
}