[feature/extension-manager] Refactoring the structure of extension provider

PHPBB3-10323

phpBB/includes/cron/task/provider.php

@@ -0,0 +1,50 @@
+<?php
+/**
+*
+* @package phpBB3
+* @copyright (c) 2011 phpBB Group
+* @license http://opensource.org/licenses/gpl-license.php GNU Public License
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+/**
+* Provides cron manager with tasks
+*
+* Finds installed cron tasks and makes them available to the cron manager.
+*
+* @package phpBB3
+*/
+class phpbb_cron_task_provider extends phpbb_extension_provider
+{
+	/**
+	* Finds cron task names using the extension manager.
+	*
+	* All PHP files in includes/cron/task/core/ are considered tasks. Tasks
+	* in extensions have to be located in a directory called cron or a subdir
+	* of a directory called cron. The class and filename must end in a _task
+	* suffix. Additionally all PHP files in includes/cron/task/core/ are
+	* tasks.
+	*
+	* @return array     List of task names
+	*/
+	protected function find()
+	{
+		$finder = $this->extension_manager->get_finder();
+
+		return $finder
+			->suffix('_task')
+			->directory('/cron')
+			->default_path('includes/cron/task/core/')
+			->default_suffix('')
+			->default_directory('')
+			->get_classes();
+	}
+}