Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\Core\Extension;
Chris@0: 
Chris@0: use Drupal\Core\Cache\Cache;
Chris@0: use Drupal\Core\Cache\CacheBackendInterface;
Chris@0: use Drupal\Core\DrupalKernelInterface;
Chris@0: use Drupal\Core\Entity\EntityStorageException;
Chris@0: use Drupal\Core\Entity\FieldableEntityInterface;
Chris@0: use Drupal\Core\Serialization\Yaml;
Chris@0: 
Chris@0: /**
Chris@0:  * Default implementation of the module installer.
Chris@0:  *
Chris@0:  * It registers the module in config, installs its own configuration,
Chris@0:  * installs the schema, updates the Drupal kernel and more.
Chris@17:  *
Chris@17:  * We don't inject dependencies yet, as we would need to reload them after
Chris@17:  * each installation or uninstallation of a module.
Chris@17:  * https://www.drupal.org/project/drupal/issues/2350111 for example tries to
Chris@17:  * solve this dilemma.
Chris@0:  */
Chris@0: class ModuleInstaller implements ModuleInstallerInterface {
Chris@0: 
Chris@0:   /**
Chris@0:    * The module handler.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\Extension\ModuleHandlerInterface
Chris@0:    */
Chris@0:   protected $moduleHandler;
Chris@0: 
Chris@0:   /**
Chris@0:    * The drupal kernel.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\DrupalKernelInterface
Chris@0:    */
Chris@0:   protected $kernel;
Chris@0: 
Chris@0:   /**
Chris@0:    * The app root.
Chris@0:    *
Chris@0:    * @var string
Chris@0:    */
Chris@0:   protected $root;
Chris@0: 
Chris@0:   /**
Chris@0:    * The uninstall validators.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\Extension\ModuleUninstallValidatorInterface[]
Chris@0:    */
Chris@0:   protected $uninstallValidators;
Chris@0: 
Chris@0:   /**
Chris@0:    * Constructs a new ModuleInstaller instance.
Chris@0:    *
Chris@0:    * @param string $root
Chris@0:    *   The app root.
Chris@0:    * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
Chris@0:    *   The module handler.
Chris@0:    * @param \Drupal\Core\DrupalKernelInterface $kernel
Chris@0:    *   The drupal kernel.
Chris@0:    *
Chris@0:    * @see \Drupal\Core\DrupalKernel
Chris@0:    * @see \Drupal\Core\CoreServiceProvider
Chris@0:    */
Chris@0:   public function __construct($root, ModuleHandlerInterface $module_handler, DrupalKernelInterface $kernel) {
Chris@0:     $this->root = $root;
Chris@0:     $this->moduleHandler = $module_handler;
Chris@0:     $this->kernel = $kernel;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function addUninstallValidator(ModuleUninstallValidatorInterface $uninstall_validator) {
Chris@0:     $this->uninstallValidators[] = $uninstall_validator;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function install(array $module_list, $enable_dependencies = TRUE) {
Chris@0:     $extension_config = \Drupal::configFactory()->getEditable('core.extension');
Chris@0:     if ($enable_dependencies) {
Chris@0:       // Get all module data so we can find dependencies and sort.
Chris@0:       $module_data = system_rebuild_module_data();
Chris@0:       $module_list = $module_list ? array_combine($module_list, $module_list) : [];
Chris@0:       if ($missing_modules = array_diff_key($module_list, $module_data)) {
Chris@0:         // One or more of the given modules doesn't exist.
Chris@0:         throw new MissingDependencyException(sprintf('Unable to install modules %s due to missing modules %s.', implode(', ', $module_list), implode(', ', $missing_modules)));
Chris@0:       }
Chris@0: 
Chris@0:       // Only process currently uninstalled modules.
Chris@0:       $installed_modules = $extension_config->get('module') ?: [];
Chris@0:       if (!$module_list = array_diff_key($module_list, $installed_modules)) {
Chris@0:         // Nothing to do. All modules already installed.
Chris@0:         return TRUE;
Chris@0:       }
Chris@0: 
Chris@0:       // Add dependencies to the list. The new modules will be processed as
Chris@14:       // the foreach loop continues.
Chris@14:       foreach ($module_list as $module => $value) {
Chris@0:         foreach (array_keys($module_data[$module]->requires) as $dependency) {
Chris@0:           if (!isset($module_data[$dependency])) {
Chris@0:             // The dependency does not exist.
Chris@0:             throw new MissingDependencyException("Unable to install modules: module '$module' is missing its dependency module $dependency.");
Chris@0:           }
Chris@0: 
Chris@0:           // Skip already installed modules.
Chris@0:           if (!isset($module_list[$dependency]) && !isset($installed_modules[$dependency])) {
Chris@0:             $module_list[$dependency] = $dependency;
Chris@0:           }
Chris@0:         }
Chris@0:       }
Chris@0: 
Chris@0:       // Set the actual module weights.
Chris@0:       $module_list = array_map(function ($module) use ($module_data) {
Chris@0:         return $module_data[$module]->sort;
Chris@0:       }, $module_list);
Chris@0: 
Chris@0:       // Sort the module list by their weights (reverse).
Chris@0:       arsort($module_list);
Chris@0:       $module_list = array_keys($module_list);
Chris@0:     }
Chris@0: 
Chris@0:     // Required for module installation checks.
Chris@0:     include_once $this->root . '/core/includes/install.inc';
Chris@0: 
Chris@0:     /** @var \Drupal\Core\Config\ConfigInstaller $config_installer */
Chris@0:     $config_installer = \Drupal::service('config.installer');
Chris@0:     $sync_status = $config_installer->isSyncing();
Chris@0:     if ($sync_status) {
Chris@0:       $source_storage = $config_installer->getSourceStorage();
Chris@0:     }
Chris@0:     $modules_installed = [];
Chris@0:     foreach ($module_list as $module) {
Chris@0:       $enabled = $extension_config->get("module.$module") !== NULL;
Chris@0:       if (!$enabled) {
Chris@0:         // Throw an exception if the module name is too long.
Chris@0:         if (strlen($module) > DRUPAL_EXTENSION_NAME_MAX_LENGTH) {
Chris@0:           throw new ExtensionNameLengthException("Module name '$module' is over the maximum allowed length of " . DRUPAL_EXTENSION_NAME_MAX_LENGTH . ' characters');
Chris@0:         }
Chris@0: 
Chris@0:         // Load a new config object for each iteration, otherwise changes made
Chris@0:         // in hook_install() are not reflected in $extension_config.
Chris@0:         $extension_config = \Drupal::configFactory()->getEditable('core.extension');
Chris@0: 
Chris@0:         // Check the validity of the default configuration. This will throw
Chris@0:         // exceptions if the configuration is not valid.
Chris@0:         $config_installer->checkConfigurationToInstall('module', $module);
Chris@0: 
Chris@0:         // Save this data without checking schema. This is a performance
Chris@0:         // improvement for module installation.
Chris@0:         $extension_config
Chris@0:           ->set("module.$module", 0)
Chris@0:           ->set('module', module_config_sort($extension_config->get('module')))
Chris@0:           ->save(TRUE);
Chris@0: 
Chris@0:         // Prepare the new module list, sorted by weight, including filenames.
Chris@0:         // This list is used for both the ModuleHandler and DrupalKernel. It
Chris@0:         // needs to be kept in sync between both. A DrupalKernel reboot or
Chris@0:         // rebuild will automatically re-instantiate a new ModuleHandler that
Chris@0:         // uses the new module list of the kernel. However, DrupalKernel does
Chris@0:         // not cause any modules to be loaded.
Chris@0:         // Furthermore, the currently active (fixed) module list can be
Chris@0:         // different from the configured list of enabled modules. For all active
Chris@0:         // modules not contained in the configured enabled modules, we assume a
Chris@0:         // weight of 0.
Chris@0:         $current_module_filenames = $this->moduleHandler->getModuleList();
Chris@0:         $current_modules = array_fill_keys(array_keys($current_module_filenames), 0);
Chris@0:         $current_modules = module_config_sort(array_merge($current_modules, $extension_config->get('module')));
Chris@0:         $module_filenames = [];
Chris@0:         foreach ($current_modules as $name => $weight) {
Chris@0:           if (isset($current_module_filenames[$name])) {
Chris@0:             $module_filenames[$name] = $current_module_filenames[$name];
Chris@0:           }
Chris@0:           else {
Chris@17:             $module_path = \Drupal::service('extension.list.module')->getPath($name);
Chris@0:             $pathname = "$module_path/$name.info.yml";
Chris@0:             $filename = file_exists($module_path . "/$name.module") ? "$name.module" : NULL;
Chris@0:             $module_filenames[$name] = new Extension($this->root, 'module', $pathname, $filename);
Chris@0:           }
Chris@0:         }
Chris@0: 
Chris@0:         // Update the module handler in order to load the module's code.
Chris@0:         // This allows the module to participate in hooks and its existence to
Chris@0:         // be discovered by other modules.
Chris@0:         // The current ModuleHandler instance is obsolete with the kernel
Chris@0:         // rebuild below.
Chris@0:         $this->moduleHandler->setModuleList($module_filenames);
Chris@0:         $this->moduleHandler->load($module);
Chris@0:         module_load_install($module);
Chris@0: 
Chris@17:         // Clear the static cache of the "extension.list.module" service to pick
Chris@17:         // up the new module, since it merges the installation status of modules
Chris@17:         // into its statically cached list.
Chris@17:         \Drupal::service('extension.list.module')->reset();
Chris@0: 
Chris@0:         // Update the kernel to include it.
Chris@0:         $this->updateKernel($module_filenames);
Chris@0: 
Chris@12:         // Replace the route provider service with a version that will rebuild
Chris@12:         // if routes used during installation. This ensures that a module's
Chris@12:         // routes are available during installation. This has to occur before
Chris@12:         // any services that depend on it are instantiated otherwise those
Chris@12:         // services will have the old route provider injected. Note that, since
Chris@12:         // the container is rebuilt by updating the kernel, the route provider
Chris@12:         // service is the regular one even though we are in a loop and might
Chris@12:         // have replaced it before.
Chris@12:         \Drupal::getContainer()->set('router.route_provider.old', \Drupal::service('router.route_provider'));
Chris@12:         \Drupal::getContainer()->set('router.route_provider', \Drupal::service('router.route_provider.lazy_builder'));
Chris@12: 
Chris@0:         // Allow modules to react prior to the installation of a module.
Chris@0:         $this->moduleHandler->invokeAll('module_preinstall', [$module]);
Chris@0: 
Chris@0:         // Now install the module's schema if necessary.
Chris@0:         drupal_install_schema($module);
Chris@0: 
Chris@0:         // Clear plugin manager caches.
Chris@0:         \Drupal::getContainer()->get('plugin.cache_clearer')->clearCachedDefinitions();
Chris@0: 
Chris@0:         // Set the schema version to the number of the last update provided by
Chris@0:         // the module, or the minimum core schema version.
Chris@0:         $version = \Drupal::CORE_MINIMUM_SCHEMA_VERSION;
Chris@0:         $versions = drupal_get_schema_versions($module);
Chris@0:         if ($versions) {
Chris@0:           $version = max(max($versions), $version);
Chris@0:         }
Chris@0: 
Chris@0:         // Notify interested components that this module's entity types and
Chris@0:         // field storage definitions are new. For example, a SQL-based storage
Chris@0:         // handler can use this as an opportunity to create the necessary
Chris@0:         // database tables.
Chris@0:         // @todo Clean this up in https://www.drupal.org/node/2350111.
Chris@0:         $entity_manager = \Drupal::entityManager();
Chris@0:         $update_manager = \Drupal::entityDefinitionUpdateManager();
Chris@0:         foreach ($entity_manager->getDefinitions() as $entity_type) {
Chris@0:           if ($entity_type->getProvider() == $module) {
Chris@0:             $update_manager->installEntityType($entity_type);
Chris@0:           }
Chris@0:           elseif ($entity_type->entityClassImplements(FieldableEntityInterface::CLASS)) {
Chris@0:             // The module being installed may be adding new fields to existing
Chris@0:             // entity types. Field definitions for any entity type defined by
Chris@0:             // the module are handled in the if branch.
Chris@0:             foreach ($entity_manager->getFieldStorageDefinitions($entity_type->id()) as $storage_definition) {
Chris@0:               if ($storage_definition->getProvider() == $module) {
Chris@0:                 // If the module being installed is also defining a storage key
Chris@0:                 // for the entity type, the entity schema may not exist yet. It
Chris@0:                 // will be created later in that case.
Chris@0:                 try {
Chris@0:                   $update_manager->installFieldStorageDefinition($storage_definition->getName(), $entity_type->id(), $module, $storage_definition);
Chris@0:                 }
Chris@0:                 catch (EntityStorageException $e) {
Chris@0:                   watchdog_exception('system', $e, 'An error occurred while notifying the creation of the @name field storage definition: "!message" in %function (line %line of %file).', ['@name' => $storage_definition->getName()]);
Chris@0:                 }
Chris@0:               }
Chris@0:             }
Chris@0:           }
Chris@0:         }
Chris@0: 
Chris@0:         // Install default configuration of the module.
Chris@0:         $config_installer = \Drupal::service('config.installer');
Chris@0:         if ($sync_status) {
Chris@0:           $config_installer
Chris@0:             ->setSyncing(TRUE)
Chris@0:             ->setSourceStorage($source_storage);
Chris@0:         }
Chris@0:         \Drupal::service('config.installer')->installDefaultConfig('module', $module);
Chris@0: 
Chris@0:         // If the module has no current updates, but has some that were
Chris@0:         // previously removed, set the version to the value of
Chris@0:         // hook_update_last_removed().
Chris@0:         if ($last_removed = $this->moduleHandler->invoke($module, 'update_last_removed')) {
Chris@0:           $version = max($version, $last_removed);
Chris@0:         }
Chris@0:         drupal_set_installed_schema_version($module, $version);
Chris@0: 
Chris@0:         // Ensure that all post_update functions are registered already.
Chris@0:         /** @var \Drupal\Core\Update\UpdateRegistry $post_update_registry */
Chris@0:         $post_update_registry = \Drupal::service('update.post_update_registry');
Chris@0:         $post_update_registry->registerInvokedUpdates($post_update_registry->getModuleUpdateFunctions($module));
Chris@0: 
Chris@0:         // Record the fact that it was installed.
Chris@0:         $modules_installed[] = $module;
Chris@0: 
Chris@0:         // Drupal's stream wrappers needs to be re-registered in case a
Chris@0:         // module-provided stream wrapper is used later in the same request. In
Chris@0:         // particular, this happens when installing Drupal via Drush, as the
Chris@0:         // 'translations' stream wrapper is provided by Interface Translation
Chris@0:         // module and is later used to import translations.
Chris@0:         \Drupal::service('stream_wrapper_manager')->register();
Chris@0: 
Chris@0:         // Update the theme registry to include it.
Chris@0:         drupal_theme_rebuild();
Chris@0: 
Chris@0:         // Modules can alter theme info, so refresh theme data.
Chris@0:         // @todo ThemeHandler cannot be injected into ModuleHandler, since that
Chris@0:         //   causes a circular service dependency.
Chris@0:         // @see https://www.drupal.org/node/2208429
Chris@0:         \Drupal::service('theme_handler')->refreshInfo();
Chris@0: 
Chris@0:         // Allow the module to perform install tasks.
Chris@0:         $this->moduleHandler->invoke($module, 'install');
Chris@0: 
Chris@0:         // Record the fact that it was installed.
Chris@0:         \Drupal::logger('system')->info('%module module installed.', ['%module' => $module]);
Chris@0:       }
Chris@0:     }
Chris@0: 
Chris@0:     // If any modules were newly installed, invoke hook_modules_installed().
Chris@0:     if (!empty($modules_installed)) {
Chris@14:       // If the container was rebuilt during hook_install() it might not have
Chris@14:       // the 'router.route_provider.old' service.
Chris@14:       if (\Drupal::hasService('router.route_provider.old')) {
Chris@14:         \Drupal::getContainer()->set('router.route_provider', \Drupal::service('router.route_provider.old'));
Chris@14:       }
Chris@0:       if (!\Drupal::service('router.route_provider.lazy_builder')->hasRebuilt()) {
Chris@0:         // Rebuild routes after installing module. This is done here on top of
Chris@0:         // \Drupal\Core\Routing\RouteBuilder::destruct to not run into errors on
Chris@0:         // fastCGI which executes ::destruct() after the module installation
Chris@0:         // page was sent already.
Chris@0:         \Drupal::service('router.builder')->rebuild();
Chris@0:       }
Chris@0: 
Chris@0:       $this->moduleHandler->invokeAll('modules_installed', [$modules_installed]);
Chris@0:     }
Chris@0: 
Chris@0:     return TRUE;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function uninstall(array $module_list, $uninstall_dependents = TRUE) {
Chris@0:     // Get all module data so we can find dependencies and sort.
Chris@0:     $module_data = system_rebuild_module_data();
Chris@0:     $module_list = $module_list ? array_combine($module_list, $module_list) : [];
Chris@0:     if (array_diff_key($module_list, $module_data)) {
Chris@0:       // One or more of the given modules doesn't exist.
Chris@0:       return FALSE;
Chris@0:     }
Chris@0: 
Chris@0:     $extension_config = \Drupal::configFactory()->getEditable('core.extension');
Chris@0:     $installed_modules = $extension_config->get('module') ?: [];
Chris@0:     if (!$module_list = array_intersect_key($module_list, $installed_modules)) {
Chris@0:       // Nothing to do. All modules already uninstalled.
Chris@0:       return TRUE;
Chris@0:     }
Chris@0: 
Chris@0:     if ($uninstall_dependents) {
Chris@0:       // Add dependent modules to the list. The new modules will be processed as
Chris@14:       // the foreach loop continues.
Chris@14:       foreach ($module_list as $module => $value) {
Chris@0:         foreach (array_keys($module_data[$module]->required_by) as $dependent) {
Chris@0:           if (!isset($module_data[$dependent])) {
Chris@0:             // The dependent module does not exist.
Chris@0:             return FALSE;
Chris@0:           }
Chris@0: 
Chris@0:           // Skip already uninstalled modules.
Chris@17:           if (isset($installed_modules[$dependent]) && !isset($module_list[$dependent])) {
Chris@0:             $module_list[$dependent] = $dependent;
Chris@0:           }
Chris@0:         }
Chris@0:       }
Chris@0:     }
Chris@0: 
Chris@0:     // Use the validators and throw an exception with the reasons.
Chris@0:     if ($reasons = $this->validateUninstall($module_list)) {
Chris@0:       foreach ($reasons as $reason) {
Chris@0:         $reason_message[] = implode(', ', $reason);
Chris@0:       }
Chris@0:       throw new ModuleUninstallValidatorException('The following reasons prevent the modules from being uninstalled: ' . implode('; ', $reason_message));
Chris@0:     }
Chris@0:     // Set the actual module weights.
Chris@0:     $module_list = array_map(function ($module) use ($module_data) {
Chris@0:       return $module_data[$module]->sort;
Chris@0:     }, $module_list);
Chris@0: 
Chris@0:     // Sort the module list by their weights.
Chris@0:     asort($module_list);
Chris@0:     $module_list = array_keys($module_list);
Chris@0: 
Chris@0:     // Only process modules that are enabled. A module is only enabled if it is
Chris@0:     // configured as enabled. Custom or overridden module handlers might contain
Chris@0:     // the module already, which means that it might be loaded, but not
Chris@0:     // necessarily installed.
Chris@0:     foreach ($module_list as $module) {
Chris@0: 
Chris@0:       // Clean up all entity bundles (including fields) of every entity type
Chris@0:       // provided by the module that is being uninstalled.
Chris@0:       // @todo Clean this up in https://www.drupal.org/node/2350111.
Chris@0:       $entity_manager = \Drupal::entityManager();
Chris@18:       $entity_type_bundle_info = \Drupal::service('entity_type.bundle.info');
Chris@0:       foreach ($entity_manager->getDefinitions() as $entity_type_id => $entity_type) {
Chris@0:         if ($entity_type->getProvider() == $module) {
Chris@18:           foreach (array_keys($entity_type_bundle_info->getBundleInfo($entity_type_id)) as $bundle) {
Chris@18:             \Drupal::service('entity_bundle.listener')->onBundleDelete($bundle, $entity_type_id);
Chris@0:           }
Chris@0:         }
Chris@0:       }
Chris@0: 
Chris@0:       // Allow modules to react prior to the uninstallation of a module.
Chris@0:       $this->moduleHandler->invokeAll('module_preuninstall', [$module]);
Chris@0: 
Chris@0:       // Uninstall the module.
Chris@0:       module_load_install($module);
Chris@0:       $this->moduleHandler->invoke($module, 'uninstall');
Chris@0: 
Chris@0:       // Remove all configuration belonging to the module.
Chris@0:       \Drupal::service('config.manager')->uninstall('module', $module);
Chris@0: 
Chris@0:       // In order to make uninstalling transactional if anything uses routes.
Chris@0:       \Drupal::getContainer()->set('router.route_provider.old', \Drupal::service('router.route_provider'));
Chris@0:       \Drupal::getContainer()->set('router.route_provider', \Drupal::service('router.route_provider.lazy_builder'));
Chris@0: 
Chris@0:       // Notify interested components that this module's entity types are being
Chris@0:       // deleted. For example, a SQL-based storage handler can use this as an
Chris@0:       // opportunity to drop the corresponding database tables.
Chris@0:       // @todo Clean this up in https://www.drupal.org/node/2350111.
Chris@0:       $update_manager = \Drupal::entityDefinitionUpdateManager();
Chris@0:       foreach ($entity_manager->getDefinitions() as $entity_type) {
Chris@0:         if ($entity_type->getProvider() == $module) {
Chris@0:           $update_manager->uninstallEntityType($entity_type);
Chris@0:         }
Chris@0:         elseif ($entity_type->entityClassImplements(FieldableEntityInterface::CLASS)) {
Chris@14:           // The module being uninstalled might have added new fields to
Chris@14:           // existing entity types. This will add them to the deleted fields
Chris@14:           // repository so their data will be purged on cron.
Chris@14:           foreach ($entity_manager->getFieldStorageDefinitions($entity_type->id()) as $storage_definition) {
Chris@14:             if ($storage_definition->getProvider() == $module) {
Chris@0:               $update_manager->uninstallFieldStorageDefinition($storage_definition);
Chris@0:             }
Chris@0:           }
Chris@0:         }
Chris@0:       }
Chris@0: 
Chris@0:       // Remove the schema.
Chris@0:       drupal_uninstall_schema($module);
Chris@0: 
Chris@0:       // Remove the module's entry from the config. Don't check schema when
Chris@0:       // uninstalling a module since we are only clearing a key.
Chris@0:       \Drupal::configFactory()->getEditable('core.extension')->clear("module.$module")->save(TRUE);
Chris@0: 
Chris@0:       // Update the module handler to remove the module.
Chris@0:       // The current ModuleHandler instance is obsolete with the kernel rebuild
Chris@0:       // below.
Chris@0:       $module_filenames = $this->moduleHandler->getModuleList();
Chris@0:       unset($module_filenames[$module]);
Chris@0:       $this->moduleHandler->setModuleList($module_filenames);
Chris@0: 
Chris@0:       // Remove any potential cache bins provided by the module.
Chris@0:       $this->removeCacheBins($module);
Chris@0: 
Chris@17:       // Clear the static cache of the "extension.list.module" service to pick
Chris@17:       // up the new module, since it merges the installation status of modules
Chris@17:       // into its statically cached list.
Chris@17:       \Drupal::service('extension.list.module')->reset();
Chris@0: 
Chris@0:       // Clear plugin manager caches.
Chris@0:       \Drupal::getContainer()->get('plugin.cache_clearer')->clearCachedDefinitions();
Chris@0: 
Chris@0:       // Update the kernel to exclude the uninstalled modules.
Chris@0:       $this->updateKernel($module_filenames);
Chris@0: 
Chris@0:       // Update the theme registry to remove the newly uninstalled module.
Chris@0:       drupal_theme_rebuild();
Chris@0: 
Chris@0:       // Modules can alter theme info, so refresh theme data.
Chris@0:       // @todo ThemeHandler cannot be injected into ModuleHandler, since that
Chris@0:       //   causes a circular service dependency.
Chris@0:       // @see https://www.drupal.org/node/2208429
Chris@0:       \Drupal::service('theme_handler')->refreshInfo();
Chris@0: 
Chris@0:       \Drupal::logger('system')->info('%module module uninstalled.', ['%module' => $module]);
Chris@0: 
Chris@0:       $schema_store = \Drupal::keyValue('system.schema');
Chris@0:       $schema_store->delete($module);
Chris@0: 
Chris@0:       /** @var \Drupal\Core\Update\UpdateRegistry $post_update_registry */
Chris@0:       $post_update_registry = \Drupal::service('update.post_update_registry');
Chris@0:       $post_update_registry->filterOutInvokedUpdatesByModule($module);
Chris@0:     }
Chris@0:     // Rebuild routes after installing module. This is done here on top of
Chris@0:     // \Drupal\Core\Routing\RouteBuilder::destruct to not run into errors on
Chris@0:     // fastCGI which executes ::destruct() after the Module uninstallation page
Chris@0:     // was sent already.
Chris@0:     \Drupal::service('router.builder')->rebuild();
Chris@0:     drupal_get_installed_schema_version(NULL, TRUE);
Chris@0: 
Chris@0:     // Let other modules react.
Chris@0:     $this->moduleHandler->invokeAll('modules_uninstalled', [$module_list]);
Chris@0: 
Chris@0:     // Flush all persistent caches.
Chris@0:     // Any cache entry might implicitly depend on the uninstalled modules,
Chris@0:     // so clear all of them explicitly.
Chris@0:     $this->moduleHandler->invokeAll('cache_flush');
Chris@0:     foreach (Cache::getBins() as $service_id => $cache_backend) {
Chris@0:       $cache_backend->deleteAll();
Chris@0:     }
Chris@0: 
Chris@0:     return TRUE;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Helper method for removing all cache bins registered by a given module.
Chris@0:    *
Chris@0:    * @param string $module
Chris@0:    *   The name of the module for which to remove all registered cache bins.
Chris@0:    */
Chris@0:   protected function removeCacheBins($module) {
Chris@0:     $service_yaml_file = drupal_get_path('module', $module) . "/$module.services.yml";
Chris@12:     if (!file_exists($service_yaml_file)) {
Chris@12:       return;
Chris@12:     }
Chris@12: 
Chris@12:     $definitions = Yaml::decode(file_get_contents($service_yaml_file));
Chris@12: 
Chris@12:     $cache_bin_services = array_filter(
Chris@12:       isset($definitions['services']) ? $definitions['services'] : [],
Chris@12:       function ($definition) {
Chris@12:         $tags = isset($definition['tags']) ? $definition['tags'] : [];
Chris@12:         foreach ($tags as $tag) {
Chris@12:           if (isset($tag['name']) && ($tag['name'] == 'cache.bin')) {
Chris@12:             return TRUE;
Chris@0:           }
Chris@0:         }
Chris@12:         return FALSE;
Chris@12:       }
Chris@12:     );
Chris@12: 
Chris@12:     foreach (array_keys($cache_bin_services) as $service_id) {
Chris@12:       $backend = $this->kernel->getContainer()->get($service_id);
Chris@12:       if ($backend instanceof CacheBackendInterface) {
Chris@12:         $backend->removeBin();
Chris@0:       }
Chris@0:     }
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Updates the kernel module list.
Chris@0:    *
Chris@0:    * @param string $module_filenames
Chris@0:    *   The list of installed modules.
Chris@0:    */
Chris@0:   protected function updateKernel($module_filenames) {
Chris@0:     // This reboots the kernel to register the module's bundle and its services
Chris@0:     // in the service container. The $module_filenames argument is taken over as
Chris@0:     // %container.modules% parameter, which is passed to a fresh ModuleHandler
Chris@0:     // instance upon first retrieval.
Chris@0:     $this->kernel->updateModules($module_filenames, $module_filenames);
Chris@0:     // After rebuilding the container we need to update the injected
Chris@0:     // dependencies.
Chris@0:     $container = $this->kernel->getContainer();
Chris@0:     $this->moduleHandler = $container->get('module_handler');
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function validateUninstall(array $module_list) {
Chris@0:     $reasons = [];
Chris@0:     foreach ($module_list as $module) {
Chris@0:       foreach ($this->uninstallValidators as $validator) {
Chris@0:         $validation_reasons = $validator->validate($module);
Chris@0:         if (!empty($validation_reasons)) {
Chris@0:           if (!isset($reasons[$module])) {
Chris@0:             $reasons[$module] = [];
Chris@0:           }
Chris@0:           $reasons[$module] = array_merge($reasons[$module], $validation_reasons);
Chris@0:         }
Chris@0:       }
Chris@0:     }
Chris@0:     return $reasons;
Chris@0:   }
Chris@0: 
Chris@0: }