ConfigInstaller::installDefaultConfig

public ConfigInstaller::installDefaultConfig($type, $name)

public function installDefaultConfig($type, $name) {
  $extension_path = $this->drupalGetPath($type, $name);
  // Refresh the schema cache if the extension provides configuration schema
  // or is a theme.
  if (is_dir($extension_path . '/' . InstallStorage::CONFIG_SCHEMA_DIRECTORY) || $type == 'theme') {
    $this->typedConfig->clearCachedDefinitions();
  }

  $default_install_path = $this->getDefaultConfigDirectory($type, $name);
  if (is_dir($default_install_path)) {
    if (!$this->isSyncing()) {
      $storage = new FileStorage($default_install_path, StorageInterface::DEFAULT_COLLECTION);
      $prefix = '';
    }
    else {
      // The configuration importer sets the source storage on the config
      // installer. The configuration importer handles all of the
      // configuration entity imports. We only need to ensure that simple
      // configuration is created when the extension is installed.
      $storage = $this->getSourceStorage();
      $prefix = $name . '.';
    }

    // Gets profile storages to search for overrides if necessary.
    $profile_storages = $this->getProfileStorages($name);

    // Gather information about all the supported collections.
    $collection_info = $this->configManager->getConfigCollectionInfo();
    foreach ($collection_info->getCollectionNames() as $collection) {
      $config_to_create = $this->getConfigToCreate($storage, $collection, $prefix, $profile_storages);
      // If we're installing a profile ensure configuration that is overriding
      // is excluded.
      if ($name == $this->drupalGetProfile()) {
        $existing_configuration = $this->getActiveStorages($collection)->listAll();
        $config_to_create = array_diff_key($config_to_create, array_flip($existing_configuration));
      }
      if (!empty($config_to_create)) {
        $this->createConfiguration($collection, $config_to_create);
      }
    }
  }

  // During a drupal installation optional configuration is installed at the
  // end of the installation process.
  // @see install_install_profile()
  if (!$this->isSyncing() && !$this->drupalInstallationAttempted()) {
    $optional_install_path = $extension_path . '/' . InstallStorage::CONFIG_OPTIONAL_DIRECTORY;
    if (is_dir($optional_install_path)) {
      // Install any optional config the module provides.
      $storage = new FileStorage($optional_install_path, StorageInterface::DEFAULT_COLLECTION);
      $this->installOptionalConfig($storage, '');
    }
    // Install any optional configuration entities whose dependencies can now
    // be met. This searches all the installed modules config/optional
    // directories.
    $storage = new ExtensionInstallStorage($this->getActiveStorages(StorageInterface::DEFAULT_COLLECTION), InstallStorage::CONFIG_OPTIONAL_DIRECTORY, StorageInterface::DEFAULT_COLLECTION, FALSE);
    $this->installOptionalConfig($storage, [$type => $name]);
  }

  // Reset all the static caches and list caches.
  $this->configFactory->reset();
}