XHProf and Buggregator for WordPress core development

docker-compose.override.yml

services:

  buggregator:
    image: ghcr.io/buggregator/server:latest
    ports:
      - 127.0.0.1:8000:8000
      - 127.0.0.1:1025:1025
      - 127.0.0.1:9912:9912
      - 127.0.0.1:9913:9913
    networks:
      - wpdevnet

  wordpress-develop:
    depends_on:
      buggregator:
        condition: service_started

  mysql:
    platform: linux/amd64

  php:
    command: >
      /bin/sh -c "
      if [ $LOCAL_PHP_MEMCACHED = true ]; then
        cp -n /var/www/tests/phpunit/includes/object-cache.php /var/www/src/wp-content/object-cache.php;
      else
        rm -f /var/www/src/wp-content/object-cache.php;
      fi &&
      pecl install xhprof &&
      docker-php-ext-enable xhprof &&
      php -a &&
      composer global require spiral-packages/profiler &&
      exec php-fpm
      "

mu-plugin.php

<?php declare( strict_types=1 );

use SpiralPackages\Profiler\Profiler;
use SpiralPackages\Profiler\DriverFactory;
use SpiralPackages\Profiler\Storage\WebStorage;
use Symfony\Component\HttpClient\NativeHttpClient;

add_action( 'plugins_loaded', function() {
	$autoload = getenv( 'COMPOSER_HOME' ) . '/vendor/autoload.php';

	if ( ! file_exists( $autoload ) ) {
		return;
	}

	require_once $autoload;

	// http://localhost:8000/#/profiler
	$profiler = new Profiler(
		storage: new WebStorage(
			new NativeHttpClient(),
			'http://buggregator:8000/api/profiler/store',
		),
		driver: DriverFactory::detect(),
		appName: get_bloginfo( 'name' ),
		tags: [
			'env' => wp_get_environment_type(),
			'url' => $_SERVER['REQUEST_URI'] ?? '',
		]
	);

	$profiler->start();

	add_action( 'shutdown', fn() => $profiler->end(), 1 );
});