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Description

Kicks off the background update process, looping through all pending updates.

Usage

WP_Automatic_Updater::run();

Parameters

Returns

void

Source

File name: wordpress/wp-admin/includes/class-wp-automatic-updater.php
Lines:

  public function run() {
    if ( $this->WP_Automatic_Updater::is_disabled() ) {
      return;
    }

    if ( ! is_main_network() || ! is_main_site() ) {
      return;
    }

    if ( ! WP_Upgrader::WP_Upgrader::create_lock( 'auto_updater' ) ) {
      return;
    }

    // Don't automatically run these things, as we'll handle it ourselves.
    remove_action( 'upgrader_process_complete', array( 'Language_Pack_Upgrader', 'async_upgrade' ), 20 );
    remove_action( 'upgrader_process_complete', 'wp_version_check' );
    remove_action( 'upgrader_process_complete', 'wp_update_plugins' );
    remove_action( 'upgrader_process_complete', 'wp_update_themes' );

    // Next, plugins.
    wp_update_plugins(); // Check for plugin updates.
    $plugin_updates = get_site_transient( 'update_plugins' );
    if ( $plugin_updates && ! empty( $plugin_updates->response ) ) {
      foreach ( $plugin_updates->response as $plugin ) {
        $this->WP_Automatic_Updater::update( 'plugin', $plugin );
      }
      // Force refresh of plugin update information.
      wp_clean_plugins_cache();
    }

    // Next, those themes we all love.
    wp_update_themes();  // Check for theme updates.
    $theme_updates = get_site_transient( 'update_themes' );
    if ( $theme_updates && ! empty( $theme_updates->response ) ) {
      foreach ( $theme_updates->response as $theme ) {
        $this->WP_Automatic_Updater::update( 'theme', (object) $theme );
      }
      // Force refresh of theme update information.
      wp_clean_themes_cache();
    }

    // Next, process any core update.
    wp_version_check(); // Check for core updates.
    $core_update = find_core_auto_update();

    if ( $core_update ) {
      $this->WP_Automatic_Updater::update( 'core', $core_update );
    }

    // Clean up, and check for any pending translations.
    // (Core_Upgrader checks for core updates.)
    $theme_stats = array();
    if ( isset( $this->update_results['theme'] ) ) {
      foreach ( $this->update_results['theme'] as $upgrade ) {
        $theme_stats[ $upgrade->item->theme ] = ( true === $upgrade->result );
      }
    }
    wp_update_themes( $theme_stats ); // Check for theme updates.

    $plugin_stats = array();
    if ( isset( $this->update_results['plugin'] ) ) {
      foreach ( $this->update_results['plugin'] as $upgrade ) {
        $plugin_stats[ $upgrade->item->plugin ] = ( true === $upgrade->result );
      }
    }
    wp_update_plugins( $plugin_stats ); // Check for plugin updates.

    // Finally, process any new translations.
    $language_updates = wp_get_translation_updates();
    if ( $language_updates ) {
      foreach ( $language_updates as $update ) {
        $this->WP_Automatic_Updater::update( 'translation', $update );
      }

      // Clear existing caches.
      wp_clean_update_cache();

      wp_version_check();  // Check for core updates.
      wp_update_themes();  // Check for theme updates.
      wp_update_plugins(); // Check for plugin updates.
    }

    // Send debugging email to admin for all development installations.
    if ( ! empty( $this->update_results ) ) {
      $development_version = false !== strpos( get_bloginfo( 'version' ), '-' );

      
/**
 * Filters whether to send a debugging email for each automatic background update.
 *
 * @since 3.7.0
 *
 * @param bool $development_version By default, emails are sent if the
 *                                  install is a development version.
 *                                  Return false to avoid the email.
 */
      if ( apply_filters( 'automatic_updates_send_debug_email', $development_version ) ) {
        $this->WP_Automatic_Updater::send_debug_email();
      }

      if ( ! empty( $this->update_results['core'] ) ) {
 

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