Simple tools for deploying Wordpress assets on a CDN

wp-cdn.php

<?php
/**
Plugin Name: CDN Tools
Plugin URI: http://web.2point1.com/tag/wp-cdn
Description: Simple tool for deploying Wordpress assets on a CDN
Version: 0 
Author: Tim Whitlock
Author URI: http://twitter.com/timwhitlock
*/


/**
 * Gets the base URL for all themes on CDN
 */
function wp_cdn_theme_root_uri( $themes_baseurl, $site_baseurl, $theme_dir ){
    if( strpos( $themes_baseurl, WP_CDN_ROOT ) === false ){
        $path = str_replace( $site_baseurl, '', $themes_baseurl );
    	$themes_baseurl = WP_CDN_ROOT . $path;
    }
    return $themes_baseurl;
}

// add filters
if( defined('WP_CDN_ROOT') ){
    add_filter('theme_root_uri', 'wp_cdn_theme_root_uri', 0, 3 );
}