Migration to Wordpress step 0

migration-makeitfast.php

<?php
/**
 * call this function before executing your wp-cli(maybe in constructor of wp-cli command file) or php script.
 */
function makeitfast() {
	//no cache
	wp_suspend_cache_addition( true );
	// suspend cache invalidation
	wp_suspend_cache_invalidation( true );
	//don't save queries
	if ( ! defined( 'SAVEQUERIES' ) ) {
		define( 'SAVEQUERIES', false );
	} else {
		var_dump('disable debug plugins from WordPress and restart script');
		exit;
	}
	if ( ! defined( 'WP_IMPORTING' ) ) {
		define( 'WP_IMPORTING', true );
	}
}

/**
 * Call this function to clean up some WordPress (you decide when to call).
 */
function cleanup() {
	if ( ! class_exists( 'WP_Importer' ) ) {
		include_once( ABSPATH . 'wp-admin/includes/class-wp-importer.php' );
	}
	global $awesome_importer;
	if ( empty( $awesome_importer ) ) {
		$awesome_importer = new WP_Importer();
	}
	$awesome_importer->stop_the_insanity();
}