Retrieves a list of all available archivers.
function archiver_get_info() {
$archiver_info =& drupal_static(__FUNCTION__, array());
if (empty($archiver_info)) {
$cache = cache()
->get('archiver_info');
if ($cache === FALSE) {
// Rebuild the cache and save it.
$archiver_info = module_invoke_all('archiver_info');
drupal_alter('archiver_info', $archiver_info);
uasort($archiver_info, 'drupal_sort_weight');
cache()
->set('archiver_info', $archiver_info);
}
else {
$archiver_info = $cache->data;
}
}
return $archiver_info;
}