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1 | <?php |
2 | /** |
3 | * |
4 | * This file is part of the phpBB Forum Software package. |
5 | * |
6 | * @copyright (c) phpBB Limited <https://www.phpbb.com> |
7 | * @license GNU General Public License, version 2 (GPL-2.0) |
8 | * |
9 | * For full copyright and license information, please see |
10 | * the docs/CREDITS.txt file. |
11 | * |
12 | */ |
13 | |
14 | namespace phpbb\install; |
15 | |
16 | /** |
17 | * Interface for installer tasks |
18 | */ |
19 | interface task_interface |
20 | { |
21 | /** |
22 | * Returns the number of steps the task contains |
23 | * |
24 | * This is a helper method to provide a better progress bar for the front-end. |
25 | * |
26 | * @return int The number of steps that the task contains |
27 | */ |
28 | public static function get_step_count(); |
29 | |
30 | /** |
31 | * Checks if the task is essential to install phpBB or it can be skipped |
32 | * |
33 | * Note: Please note that all the non-essential modules have to implement check_requirements() |
34 | * method. |
35 | * |
36 | * @return bool true if the task is essential, false otherwise |
37 | */ |
38 | public function is_essential(); |
39 | |
40 | /** |
41 | * Checks requirements for the tasks |
42 | * |
43 | * Note: Only need to be implemented for non-essential tasks, as essential tasks |
44 | * requirements should be checked in the requirements install module. |
45 | * |
46 | * @return bool true if the task's requirements are met |
47 | */ |
48 | public function check_requirements(); |
49 | |
50 | /** |
51 | * Executes the task |
52 | */ |
53 | public function run(); |
54 | |
55 | /** |
56 | * Returns the language key of the name of the task |
57 | * |
58 | * @return string |
59 | */ |
60 | public function get_task_lang_name(); |
61 | } |