Drupal 7 XMLSitemap Module: Create a Sitemap for a language programmatically.

utility_xmlsitemap.php

/**
 * Create a site map for a specific language.
 *
 * @param string $language
 *   Language code.
 *
 * @return bool
 *   Success bool.
 */
function utility_xmlsitemap_create_sitemap($language) {
  include_once drupal_get_path('module', 'xmlsitemap') . '/xmlsitemap.admin.inc';

  // This is how the module creates the data. I don't know if it is an entity.
  $query = db_select('xmlsitemap_sitemap');
  $query->fields('xmlsitemap_sitemap');

  $result = $query->execute();
  $site_maps = $result->fetchAllAssoc('smid');

  foreach ((array) $site_maps as $key => $value) {
    $current_context = unserialize($value->context);
    if (strtolower($current_context['language']) === strtolower($language)) {
      // If it exists do not create.
      watchdog('utility_xmlsitemap_create_sitemap',
        'Site map exists and will not be created for language: :language',
        array(':language' => $language),
        WATCHDOG_NOTICE
      );

      return FALSE;
    }
  }

  watchdog('utility_xmlsitemap_create_sitemap',
    'Site map does not exist language: :language',
    array(':language' => $language),
    WATCHDOG_INFO
  );

  // Create a site map object for the specified language.
  $site_map = new stdClass();
  $site_map->smid = NULL;
  $site_map->context = array('language' => $language);

  xmlsitemap_sitemap_save($site_map);

  watchdog('utility_xmlsitemap_create_sitemap',
    'Created site map for language: :language',
    array(':language' => $language),
    WATCHDOG_INFO
  );

  return TRUE;
}

This is a function demonstrating how to programmatically create an XML sitemap in Drupal 7 using the xmlsitemap contrib module.

This is suitable for use in devel as one time script or in a custom site module install file to create a sitemap on deploy of a new language since I don't believe they are feature-ized.

If needed you could add validation around language codes, but since these are one time functions many times and this is a proof of concept I left it out... or I am just being lazy lol.

utility_xmlsitemap_create_sitemap('en-US');