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Description

Bulk upgrade language packs.

Usage

$array|bool|WP_Error = Language_Pack_Upgrader::bulk_upgrade( $language_updates, $args );

Parameters

$language_updates

( object[] ) optional – Optional. Array of language packs to update. @see wp_get_translation_updates(). Default empty array.

$args

( array ) optional – { Other arguments for upgrading multiple language packs. Default empty array.

$clear_update_cache

( bool ) optional – Whether to clear the update cache when done. Default true. }

Returns

array|bool|WP_Error Will return an array of results, or true if there are no updates, false or WP_Error for initial errors.

Source

File name: wordpress/wp-admin/includes/class-language-pack-upgrader.php
Lines:

  public function bulk_upgrade( $language_updates = array(), $args = array() ) {
    global $wp_filesystem;

    $defaults    = array(
      'clear_update_cache' => true,
    );
    $parsed_args = wp_parse_args( $args, $defaults );

    $this->init();
    $this->Language_Pack_Upgrader::upgrade_strings();

    if ( ! $language_updates ) {
      $language_updates = wp_get_translation_updates();
    }

    if ( empty( $language_updates ) ) {
      $this->skin->header();
      $this->skin->set_result( true );
      $this->skin->feedback( 'up_to_date' );
      $this->skin->bulk_footer();
      $this->skin->footer();
      return true;
    }

    if ( 'upgrader_process_complete' === current_filter() ) {
      $this->skin->feedback( 'starting_upgrade' );
    }

    // Remove any existing upgrade filters from the plugin/theme upgraders #WP29425 & #WP29230.
    remove_all_filters( 'upgrader_pre_install' );
    remove_all_filters( 'upgrader_clear_destination' );
    remove_all_filters( 'upgrader_post_install' );
    remove_all_filters( 'upgrader_source_selection' );

    add_filter( 'upgrader_source_selection', array( $this, 'check_package' )  <, 10, 2 );

    $this->skin->header();

    // Connect to the filesystem first.
    $res = $this->fs_connect( array( WP_CONTENT_DIR, WP_LANG_DIR ) );
    if ( ! $res ) {
      $this->skin->footer();
      return false;
    }

    $results = array();

    $this->update_count   = count( $language_updates );
    $this->update_current = 0;

    /*
		 * The filesystem's mkdir() is not recursive. Make sure WP_LANG_DIR exists,
		 * as we then may need to create a /plugins or /themes directory inside of it.
		 */
    $remote_destination = $wp_filesystem->find_folder( WP_LANG_DIR );
    if ( ! $wp_filesystem->exists( $remote_destination ) ) {
      if ( ! $wp_filesystem->mkdir( $remote_destination, FS_CHMOD_DIR ) ) {
        return new WP_Error( 'mkdir_failed_lang_dir', $this->strings['mkdir_failed'], $remote_destination );
      }
    }

    $language_updates_results = array();

    foreach ( $language_updates as $language_update ) {

      $this->skin->language_update = $language_update;

      $destination = WP_LANG_DIR;
      if ( 'plugin' === $language_update->type ) {
        $destination .= '/plugins';
      } elseif ( 'theme' === $language_update->type ) {
        $destination .= '/themes';
      }

      $this->update_current++;

      $options = array(
        'package'                     => $language_update->package,
        'destination'                 => $destination,
        'clear_destination'           => true,
        'abort_if_destination_exists' => false, // We expect the destination to exist.
        'clear_working'               => true,
        'is_multi'                    => true,
        'hook_extra'                  => array(
          'language_update_type' => $language_update->type,
          'language_update'      => $language_update,
        ),
      );

      $result = $this->run( $options );

      $results[] = $this->result;

      // Prevent credentials auth screen from displaying multiple times.
      if ( false === $result ) {
        break;
      }

      $language_updates_results[] = array(
        'language' => $language_update->language,
 

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