Determines what project a given file object belongs to.
$file: A file object as returned by system_get_files_database().
The canonical project short name.
function update_get_project_name($file) {
$project_name = '';
if (isset($file->info['project'])) {
$project_name = $file->info['project'];
}
elseif (isset($file->info['package']) && strpos($file->info['package'], 'Core') === 0) {
$project_name = 'drupal';
}
return $project_name;
}