Put WordPress custom post types in a global variable

gistfile1.aw

<?php

/**
 * Store public custom post types in global variable
 */
add_action( 'init', 'pilau_custom_post_types_var', 1 );
function pilau_custom_post_types_var() {
	global $pilau_custom_post_types;
	$pilau_custom_post_types = get_post_types( array(
		'public'   => true,
		'_builtin' => false
	), 'objects', 'and' );
}