<?php

include_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';

function ocmx_theme_update($package, $delete_package = true) {

		global $wp_filesystem;

		$upgrade_folder = WP_Filesystem_Base::wp_content_dir() . 'upgrade/'		;

		echo $upgrade_folder;

/*

		//Clean up contents of upgrade directory beforehand.

		$upgrade_files = $wp_filesystem->dirlist($upgrade_folder);

		if ( !empty($upgrade_files) ) {

			foreach ( $upgrade_files as $file )

				$wp_filesystem->delete($upgrade_folder . $file['name'], true);

		}

		//We need a working directory

		$working_dir = $upgrade_folder . basename($package, '.zip');

		// Clean up working directory

		if ( $wp_filesystem->is_dir($working_dir) )

			$wp_filesystem->delete($working_dir, true);

		// Unzip package to working directory

		$result = unzip_file($package, $working_dir); //TODO optimizations, Copy when Move/Rename would suffice?

		// Once extracted, delete the package if required.

		if ( $delete_package )

			unlink($package);

		if ( is_wp_error($result) ) {

			$wp_filesystem->delete($working_dir, true);

			return $result;

		}

		return $working_dir;

		*/

	}