├── mo-cache.php
├── readme.txt
└── screenshot-1.png


/mo-cache.php:
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 1 | <?php
 2 | /**
 3 |  * @package MOCache
 4 |  */
 5 | 
 6 | /*
 7 | Plugin Name: MO Cache
 8 | Plugin URI: http://wordpress.org/extend/plugins/mo-cache/
 9 | Description: Improving the site performance by caching translation files using the WordPress standard cache mechanism.
10 | Author: Masaki Takeuchi
11 | Version: 2.0
12 | Author URI: https://github.com/m4i/wordpress-mo-cache
13 | License: MIT
14 | */
15 | 
16 | class MOCache {
17 | 	const VERSION = '2.0';
18 | 	const GROUP   = 'mo';
19 | 
20 | 	public static function setup() {
21 | 		add_filter(
22 | 			'override_load_textdomain', array( new self, 'load' ), 10, 3 );
23 | 	}
24 | 
25 | 	public function load( $override, $domain, $mofile ) {
26 | 		global $l10n;
27 | 
28 | 		do_action( 'load_textdomain', $domain, $mofile );
29 | 		$mofile = apply_filters( 'load_textdomain_mofile', $mofile, $domain );
30 | 		if ( !is_readable( $mofile ) ) return false;
31 | 
32 | 		if ( function_exists( 'wp_cache_add_global_groups' ) ) {
33 | 			wp_cache_add_global_groups( self::GROUP );
34 | 		}
35 | 		$key = preg_replace('/[^-\w]/', '_',
36 | 			self::VERSION . "-${GLOBALS['wp_version']}-$mofile");
37 | 
38 | 		$mo = new MO();
39 | 		if ( $cache = wp_cache_get( $key, self::GROUP ) ) {
40 | 			$mo->entries = $cache['entries'];
41 | 			$mo->set_headers( $cache['headers'] );
42 | 		} else {
43 | 			if ( !$mo->import_from_file( $mofile ) ) return false;
44 | 			$cache = array(
45 | 				'entries' => $mo->entries,
46 | 				'headers' => $mo->headers,
47 | 			);
48 | 			wp_cache_set( $key, $cache, self::GROUP );
49 | 		}
50 | 
51 | 		if ( isset( $l10n[$domain] ) )
52 | 			$mo->merge_with( $l10n[$domain] );
53 | 		$l10n[$domain] = &$mo;
54 | 		return true;
55 | 	}
56 | }
57 | 
58 | MOCache::setup();
59 | 


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/readme.txt:
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 1 | === MO Cache ===
 2 | Contributors: m4i
 3 | Tags: cache, caching, performance, benchmark, benchmarking, i18n, internationalization, l10n, localization, language, languages, translation, translate
 4 | Requires at least: 3.2
 5 | Tested up to: 3.4
 6 | Stable tag: 2.0
 7 | 
 8 | Improving the site performance by caching translation files using the WordPress standard cache mechanism.
 9 | 
10 | 
11 | == Description ==
12 | 
13 | The MO Cache provides simple and fast caching of the translation MO files using the [WP Object Cache](http://codex.wordpress.org/Class_Reference/WP_Object_Cache) mechanism.
14 | This plugin is necessary to be used [persistent caching plugin](http://codex.wordpress.org/Class_Reference/WP_Object_Cache#Persistent_Cache_Plugins), otherwise you can not benefit from this plugin.
15 | 
16 | For localized WordPress, which was newly installed, the loading time of translation files accounts for 70% of the entire processing time.
17 | You can make this process 3 times faster by just installing this plugin.
18 | 
19 | [Description in Japanese （日本語での紹介記事）](http://m4i.hatenablog.com/entry/2011/12/10/000407)
20 | 
21 | = Features =
22 | 
23 | * No configuration
24 | * Supports multiple languages
25 | * Supports plugin's translation files caching
26 | * Supports WordPress Network/Multisite installation
27 | * A simple plugin in less than 100 lines
28 | 
29 | 
30 | == Installation ==
31 | 
32 | = Quick Installation =
33 | 
34 | 1. Verify that `/wp-content/object-cache.php` is installed.
35 | 1. Install the plugin; the "Plugins -> Add New" menu in the WordPress.
36 | 1. Activate the plugin.
37 | 
38 | = Recommended Installation =
39 | 
40 | It is recommended to install the MO Cache as a [must-use plugin](http://codex.wordpress.org/Must_Use_Plugins) because the translation files will not be cached if other plugins load translation files before the MO Cache is loaded.
41 | 
42 | 1. Verify that `/wp-content/object-cache.php` is installed.
43 | 1. Create `/wp-content/mu-plugins` directory, if it not exist.
44 | 1. Upload `mo-cache.php` to the `/wp-content/mu-plugins` directory.
45 | 1. Done! No need to activate.
46 | 
47 | 
48 | == Frequently Asked Questions ==
49 | 
50 | = Does this plugin support multiple WordPress installs? =
51 | 
52 | It depends on the persistent caching plugin.
53 | [APC Object Cache Backend](http://wordpress.org/extend/plugins/apc/), [W3 Total Cache](http://wordpress.org/extend/plugins/w3-total-cache/) and [WP File Cache](http://wordpress.org/extend/plugins/wp-file-cache/) support it.
54 | 
55 | 
56 | == Screenshots ==
57 | 
58 | 1. Benchmarking WordPress 3.3 ja using Xdebug profiler.
59 | 
60 | 
61 | == Changelog ==
62 | 
63 | = 2.0 =
64 | * Support WordPress 3.4
65 | 
66 | = 1.2 =
67 | * No change in the code
68 | * Fix typos in readme
69 | 
70 | = 1.1 =
71 | * No change in the code
72 | * Tested up to WordPress 3.3
73 | 
74 | = 1.0 =
75 | * Initial release
76 | 


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/screenshot-1.png:
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https://raw.githubusercontent.com/m4i/wordpress-mo-cache/18024d7fd0c91a53bbf018d8393b180380c9dd1f/screenshot-1.png


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