bootstrap.php

<?php

declare (strict_types=1);

/*
 * This file is part of Composer.
 *
 * (c) Nils Adermann <naderman@naderman.de>
 *     Jordi Boggiano <j.boggiano@seld.be>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
use Composer\Autoload\ClassLoader;
function includeIfExists(string $file) : ?ClassLoader {
    return file_exists($file) ? include $file : null;
}
if (!($loader = includeIfExists(__DIR__ . '/../vendor/autoload.php')) && !($loader = includeIfExists(__DIR__ . '/../../../autoload.php'))) {
    echo 'You must set up the project dependencies using `composer install`' . PHP_EOL . 'See https://getcomposer.org/download/ for instructions on installing Composer' . PHP_EOL;
    exit(1);
}
return $loader;