diff options
Diffstat (limited to 'core/includes/registry.inc')
| -rw-r--r-- | core/includes/registry.inc | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/core/includes/registry.inc b/core/includes/registry.inc deleted file mode 100644 index 8961f7a18b6..00000000000 --- a/core/includes/registry.inc +++ /dev/null @@ -1,186 +0,0 @@ -<?php - -/** - * @file - * This file contains the code registry parser engine. - */ - -/** - * @defgroup registry Code registry - * @{ - * The code registry engine. - * - * Drupal maintains an internal registry of all functions or classes in the - * system, allowing it to lazy-load code files as needed (reducing the amount - * of code that must be parsed on each request). - */ - -/** - * Does the work for registry_update(). - */ -function _registry_update() { - - // The registry serves as a central autoloader for all classes, including - // the database query builders. However, the registry rebuild process - // requires write ability to the database, which means having access to the - // query builders that require the registry in order to be loaded. That - // causes a fatal race condition. Therefore we manually include the - // appropriate query builders for the currently active database before the - // registry rebuild process runs. - $connection_info = Database::getConnectionInfo(); - $driver = $connection_info['default']['driver']; - require_once DRUPAL_ROOT . '/core/includes/database/query.inc'; - require_once DRUPAL_ROOT . '/core/includes/database/select.inc'; - require_once DRUPAL_ROOT . '/core/includes/database/' . $driver . '/query.inc'; - - // Get current list of modules and their files. - $modules = db_query("SELECT * FROM {system} WHERE type = 'module'")->fetchAll(); - // Get the list of files we are going to parse. - $files = array(); - foreach ($modules as &$module) { - $module->info = unserialize($module->info); - $dir = dirname($module->filename); - - // Store the module directory for use in hook_registry_files_alter(). - $module->dir = $dir; - - if ($module->status) { - // Add files for enabled modules to the registry. - foreach ($module->info['files'] as $file) { - $files["$dir/$file"] = array('module' => $module->name, 'weight' => $module->weight); - } - } - } - foreach (file_scan_directory('core/includes', '/\.inc$/') as $filename => $file) { - $files["$filename"] = array('module' => '', 'weight' => 0); - } - - $transaction = db_transaction(); - try { - // Allow modules to manually modify the list of files before the registry - // parses them. The $modules array provides the .info file information, which - // includes the list of files registered to each module. Any files in the - // list can then be added to the list of files that the registry will parse, - // or modify attributes of a file. - drupal_alter('registry_files', $files, $modules); - foreach (registry_get_parsed_files() as $filename => $file) { - // Add the hash for those files we have already parsed. - if (isset($files[$filename])) { - $files[$filename]['hash'] = $file['hash']; - } - else { - // Flush the registry of resources in files that are no longer on disc - // or are in files that no installed modules require to be parsed. - db_delete('registry') - ->condition('filename', $filename) - ->execute(); - db_delete('registry_file') - ->condition('filename', $filename) - ->execute(); - } - } - $parsed_files = _registry_parse_files($files); - - $unchanged_resources = array(); - $lookup_cache = array(); - if ($cache = cache('bootstrap')->get('lookup_cache')) { - $lookup_cache = $cache->data; - } - foreach ($lookup_cache as $key => $file) { - // If the file for this cached resource is carried over unchanged from - // the last registry build, then we can safely re-cache it. - if ($file && in_array($file, array_keys($files)) && !in_array($file, $parsed_files)) { - $unchanged_resources[$key] = $file; - } - } - module_implements_reset(); - _registry_check_code(REGISTRY_RESET_LOOKUP_CACHE); - } - catch (Exception $e) { - $transaction->rollback(); - watchdog_exception('registry', $e); - throw $e; - } - - // We have some unchanged resources, warm up the cache - no need to pay - // for looking them up again. - if (count($unchanged_resources) > 0) { - cache('bootstrap')->set('lookup_cache', $unchanged_resources); - } -} - -/** - * Return the list of files in registry_file - */ -function registry_get_parsed_files() { - $files = array(); - // We want the result as a keyed array. - $files = db_query("SELECT * FROM {registry_file}")->fetchAllAssoc('filename', PDO::FETCH_ASSOC); - return $files; -} - -/** - * Parse all files that have changed since the registry was last built, and save their function and class listings. - * - * @param $files - * The list of files to check and parse. - */ -function _registry_parse_files($files) { - $parsed_files = array(); - foreach ($files as $filename => $file) { - if (file_exists($filename)) { - $hash = hash_file('sha256', $filename); - if (empty($file['hash']) || $file['hash'] != $hash) { - // Delete registry entries for this file, so we can insert the new resources. - db_delete('registry') - ->condition('filename', $filename) - ->execute(); - $file['hash'] = $hash; - $parsed_files[$filename] = $file; - } - } - } - foreach ($parsed_files as $filename => $file) { - _registry_parse_file($filename, file_get_contents($filename), $file['module'], $file['weight']); - db_merge('registry_file') - ->key(array('filename' => $filename)) - ->fields(array( - 'hash' => $file['hash'], - )) - ->execute(); - } - return array_keys($parsed_files); -} - -/** - * Parse a file and save its function and class listings. - * - * @param $filename - * Name of the file we are going to parse. - * @param $contents - * Contents of the file we are going to parse as a string. - * @param $module - * (optional) Name of the module this file belongs to. - * @param $weight - * (optional) Weight of the module. - */ -function _registry_parse_file($filename, $contents, $module = '', $weight = 0) { - if (preg_match_all('/^\s*(?:abstract|final)?\s*(class|interface)\s+([a-zA-Z0-9_]+)/m', $contents, $matches)) { - $query = db_insert('registry')->fields(array('name', 'type', 'filename', 'module', 'weight')); - foreach ($matches[2] as $key => $name) { - $query->values(array( - 'name' => $name, - 'type' => $matches[1][$key], - 'filename' => $filename, - 'module' => $module, - 'weight' => $weight, - )); - } - $query->execute(); - } -} - -/** - * @} End of "defgroup registry". - */ - |