danielebarchiesi@4: <?php
danielebarchiesi@4: 
danielebarchiesi@4: /**
danielebarchiesi@4:  * Implements hook_features_api().
danielebarchiesi@4:  */
danielebarchiesi@4: function features_features_api() {
danielebarchiesi@4:   return array(
danielebarchiesi@4:     'dependencies' => array(
danielebarchiesi@4:       'name' => 'Dependencies',
danielebarchiesi@4:       'feature_source' => TRUE,
danielebarchiesi@4:       'duplicates' => FEATURES_DUPLICATES_ALLOWED,
danielebarchiesi@4:     ),
danielebarchiesi@4:   );
danielebarchiesi@4: }
danielebarchiesi@4: 
danielebarchiesi@4: /**
danielebarchiesi@4:  * Implements hook_features_export_options().
danielebarchiesi@4:  */
danielebarchiesi@4: function dependencies_features_export_options() {
danielebarchiesi@4:   // Excluded modules.
danielebarchiesi@4:   $excluded = drupal_required_modules();
danielebarchiesi@4:   $options = array();
danielebarchiesi@4:   foreach (features_get_modules() as $module_name => $info) {
danielebarchiesi@4:     if (!in_array($module_name, $excluded) && $info->status && !empty($info->info)) {
danielebarchiesi@4:       $options[$module_name] = $info->info['name'];
danielebarchiesi@4:     }
danielebarchiesi@4:   }
danielebarchiesi@4:   return $options;
danielebarchiesi@4: }
danielebarchiesi@4: 
danielebarchiesi@4: /**
danielebarchiesi@4:  * Implements hook_features_export().
danielebarchiesi@4:  */
danielebarchiesi@4: function dependencies_features_export($data, &$export, $module_name = '') {
danielebarchiesi@4:   // Don't allow a module to depend upon itself.
danielebarchiesi@4:   if (!empty($data[$module_name])) {
danielebarchiesi@4:     unset($data[$module_name]);
danielebarchiesi@4:   }
danielebarchiesi@4: 
danielebarchiesi@4:   // Clean up existing dependencies and merge.
danielebarchiesi@4:   $export['dependencies'] = _features_export_minimize_dependencies($export['dependencies'], $module_name);
danielebarchiesi@4:   $export['dependencies'] = array_merge($data, $export['dependencies']);
danielebarchiesi@4:   $export['dependencies'] = array_unique($export['dependencies']);
danielebarchiesi@4: }
danielebarchiesi@4: 
danielebarchiesi@4: /**
danielebarchiesi@4:  * Implements hook_features_revert().
danielebarchiesi@4:  */
danielebarchiesi@4: function dependencies_features_revert($module) {
danielebarchiesi@4:   dependencies_features_rebuild($module);
danielebarchiesi@4: }
danielebarchiesi@4: 
danielebarchiesi@4: /**
danielebarchiesi@4:  * Implements hook_features_rebuild().
danielebarchiesi@4:  * Ensure that all of a feature's dependencies are enabled.
danielebarchiesi@4:  */
danielebarchiesi@4: function dependencies_features_rebuild($module) {
danielebarchiesi@4:   $feature = features_get_features($module);
danielebarchiesi@4:   if (!empty($feature->info['dependencies'])) {
danielebarchiesi@4:     $install = array();
danielebarchiesi@4:     foreach ($feature->info['dependencies'] as $dependency) {
danielebarchiesi@4:       // Parse the dependency string into the module name and version information.
danielebarchiesi@4:       $parsed_dependency = drupal_parse_dependency($dependency);
danielebarchiesi@4:       $dependency = $parsed_dependency['name'];
danielebarchiesi@4:       if (!module_exists($dependency)) {
danielebarchiesi@4:         $install[] = $dependency;
danielebarchiesi@4:       }
danielebarchiesi@4:     }
danielebarchiesi@4:     if (!empty($install)) {
danielebarchiesi@4:       features_install_modules($install);
danielebarchiesi@4:     }
danielebarchiesi@4:   }
danielebarchiesi@4: }