jetpack / require-lib.php

require-lib.php in Jetpack – WP Security, Backup, Speed, & Growth 11.2.1, at require-lib.php

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1	<?php
2	/**
3	* File with a single function for loading library files.
4	*
5	* @package automattic/jetpack
6	*/
7
8	/**
9	* Function for loading library files.
10	*
11	* @param string $slug Library slug.
12	* @return void
13	*/
14	function jetpack_require_lib( $slug ) {
15	static $loaded = array();
16
17	if ( defined( 'ABSPATH' ) && ! defined( 'WP_CONTENT_DIR' ) ) {
18	define( 'WP_CONTENT_DIR', ABSPATH . 'wp-content' ); // no trailing slash, full paths only - WP_CONTENT_URL is defined further down
19	}
20
21	$lib_dir = WP_CONTENT_DIR . '/lib';
22
23	/**
24	* Filter the location of the library directory.
25	*
26	* @since 2.5.0
27	*
28	* @param string $lib_dir Path to the library directory.
29	*/
30	$lib_dir = apply_filters( 'jetpack_require_lib_dir', $lib_dir );
31
32	$loaded_key = "{$lib_dir}{$slug}";
33	if ( ! empty( $loaded[ $loaded_key ] ) ) {
34	return;
35	}
36
37	$loaded[ $loaded_key ] = true;
38
39	$file_name = "$lib_dir/$slug.php";
40	if ( is_readable( $file_name ) ) {
41	require_once $file_name;
42
43	return;
44	}
45
46	$file_name = "$lib_dir/$slug/0-load.php";
47	if ( is_readable( $file_name ) ) {
48	require_once $file_name;
49
50	return;
51	}
52
53	$basename = basename( $slug );
54	$file_name = "$lib_dir/$slug/$basename.php";
55	require_once $file_name;
56	}
57