function _update_refresh

Clears out all the cached available update data and initiates re-fetching.

File

core/modules/update/update.fetch.inc, line 212

Code required only when fetching information about available updates.

Code

function _update_refresh() {
  module_load_include('inc', 'update', 'update.compare');

  // Since we're fetching new available update data, we want to clear
  // our cache of both the projects we care about, and the current update
  // status of the site. We do *not* want to clear the cache of available
  // releases just yet, since that data (even if it's stale) can be useful
  // during update_get_projects(); for example, to modules that implement
  // hook_system_info_alter() such as cvs_deploy.
  _update_cache_clear('update_project_projects');
  _update_cache_clear('update_project_data');

  $projects = update_get_projects();

  // Now that we have the list of projects, we should also clear our cache of
  // available release data, since even if we fail to fetch new data, we need
  // to clear out the stale data at this point.
  _update_cache_clear('available_releases::', TRUE);

  foreach ($projects as $key => $project) {
    update_create_fetch_task($project);
  }
}