public static function do_initial_sync() {
    // Lets not sync if we are not suppose to.
    if ( ! self::sync_allowed() ) {
      return false;
    }

    // Don't start new sync if a full sync is in process.
    $full_sync_module = Modules::get_module( 'full-sync' );
    if ( $full_sync_module && $full_sync_module->is_started() && ! $full_sync_module->is_finished() ) {
      return false;
    }

    $initial_sync_config = array(
      'options'         => true,
      'functions'       => true,
      'constants'       => true,
      'users'           => array( get_current_user_id() ),
      'network_options' => true,
    );

    self::do_full_sync( $initial_sync_config );
  }