Display currently active post types and list their source.

display-themes-plugins.php

<?php
add_action( 'registered_post_type', 'display_registered_post_types', 99999, 2 );

global $tempPostTypes;

$tempPostTypes = array();

function display_registered_post_types( $post_type, $args ) {
	global $tempPostTypes;	

	$pluginDir = str_replace( '/', '\\', WP_PLUGIN_DIR );
	$themesDir = str_replace( '/', '\\', TEMPLATEPATH );

	$backtrace = debug_backtrace();
	$filePath = $backtrace[3]['file'];

	if ( $args->_builtin ) {
		$source = 'Core';
	} else {
		if ( strpos( $filePath, $pluginDir ) !== false ) {
			$source = 'Plugin';
		}
		if ( strpos( $filePath, $themesDir ) !== false ) {
			$source = 'Theme';
		}
	}

	$taxonomies = get_object_taxonomies( $post_type );

	$tempPostTypes[] = array( $post_type, $args, $taxonomies, $source, dirname( $filePath ) );
}


add_action( 'admin_init', function() {
	global $tempPostTypes;

	$activePlugins = get_plugins();
	$themes = wp_get_themes();

	

	// var_dump( $taxonomies );

	// var_dump( $themes );
	// var_dump( $activePlugins );
	// var_dump( $tempPostTypes );
});