public function DrupalKernel::discoverServiceProviders

Discovers available serviceProviders.

Return value

array The available serviceProviders.

Overrides DrupalKernelInterface::discoverServiceProviders

File

core/lib/Drupal/Core/DrupalKernel.php, line 633

Class

DrupalKernel

The DrupalKernel class is the core of Drupal itself.

Namespace

Code

public function discoverServiceProviders() {
  $this->serviceYamls = [
    'app' => [],
    'site' => [],
  ];
  $this->serviceProviderClasses = [
    'app' => [],
    'site' => [],
  ];
  $this->serviceYamls['app']['core'] = 'core/core.services.yml';
  $this->serviceProviderClasses['app']['core'] = 'Drupal\\Core\\CoreServiceProvider';

  // Retrieve enabled modules and register their namespaces.
  if (!isset($this->moduleList)) {
    $extensions = $this
      ->getConfigStorage()
      ->read('core.extension');

    // If core.extension configuration does not exist and we're not in the
    // installer itself, then we need to put the kernel into a pre-installer
    // mode. The container should not be dumped because Drupal is yet to be
    // installed. The installer service provider is registered to ensure that
    // cache and other automatically created tables are not created if
    // database settings are available. None of this is required when the
    // installer is running because the installer has its own kernel and
    // manages the addition of its own service providers.
    // @see install_begin_request()
    if ($extensions === FALSE && !InstallerKernel::installationAttempted()) {
      $this->allowDumping = FALSE;
      $this->containerNeedsDumping = FALSE;
      $GLOBALS['conf']['container_service_providers']['InstallerServiceProvider'] = 'Drupal\\Core\\Installer\\InstallerServiceProvider';
    }
    $this->moduleList = $extensions['module'] ?? [];
  }
  $module_filenames = $this
    ->getModuleFileNames();
  $this
    ->classLoaderAddMultiplePsr4($this
    ->getModuleNamespacesPsr4($module_filenames));

  // Load each module's serviceProvider class.
  foreach ($module_filenames as $module => $filename) {
    $camelized = ContainerBuilder::camelize($module);
    $name = "{$camelized}ServiceProvider";
    $class = "Drupal\\{$module}\\{$name}";
    if (class_exists($class)) {
      $this->serviceProviderClasses['app'][$module] = $class;
    }
    $filename = dirname($filename) . "/{$module}.services.yml";
    if (file_exists($filename)) {
      $this->serviceYamls['app'][$module] = $filename;
    }
  }

  // Add site-specific service providers.
  if (!empty($GLOBALS['conf']['container_service_providers'])) {
    foreach ($GLOBALS['conf']['container_service_providers'] as $class) {
      if (is_string($class) && class_exists($class) || is_object($class) && ($class instanceof ServiceProviderInterface || $class instanceof ServiceModifierInterface)) {
        $this->serviceProviderClasses['site'][] = $class;
      }
    }
  }
  $this
    ->addServiceFiles(Settings::get('container_yamls', []));
}