function _module_build_dependencies

_module_build_dependencies($files)

Determines which modules require and are required by each module.

Parameters

$files: The array of filesystem objects used to rebuild the cache.

Return value

The same array with the new keys for each module:

• requires: An array with the keys being the modules that this module requires.
• required_by: An array with the keys being the modules that will not work without this module.

File

includes/module.inc, line 249

API for loading and interacting with Drupal modules.

Code

function _module_build_dependencies($files) {
  require_once DRUPAL_ROOT . '/includes/graph.inc';
  foreach ($files as $filename => $file) {
    $graph[$file->name]['edges'] = array();
    if (isset($file->info['dependencies']) && is_array($file->info['dependencies'])) {
      foreach ($file->info['dependencies'] as $dependency) {
        $dependency_data = drupal_parse_dependency($dependency);
        $graph[$file->name]['edges'][$dependency_data['name']] = $dependency_data;
      }
    }
  }
  drupal_depth_first_search($graph);
  foreach ($graph as $module => $data) {
    $files[$module]->required_by = isset($data['reverse_paths']) ? $data['reverse_paths'] : array();
    $files[$module]->requires = isset($data['paths']) ? $data['paths'] : array();
    $files[$module]->sort = $data['weight'];
  }
  return $files;
}