doctrine2/tools/sandbox/cli-config.php

<?php

require_once '../../lib/vendor/doctrine-common/lib/Doctrine/Common/ClassLoader.php';

$classLoader = new \Doctrine\Common\ClassLoader('Doctrine\ORM', realpath(__DIR__ . '/../../lib'));
$classLoader->register();
$classLoader = new \Doctrine\Common\ClassLoader('Doctrine\DBAL', realpath(__DIR__ . '/../../lib/vendor/doctrine-dbal/lib'));
$classLoader->register();
$classLoader = new \Doctrine\Common\ClassLoader('Doctrine\Common', realpath(__DIR__ . '/../../lib/vendor/doctrine-common/lib'));
$classLoader->register();
$classLoader = new \Doctrine\Common\ClassLoader('Symfony', realpath(__DIR__ . '/../../lib/vendor'));
$classLoader->register();
$classLoader = new \Doctrine\Common\ClassLoader('Entities', __DIR__);
$classLoader->register();
$classLoader = new \Doctrine\Common\ClassLoader('Proxies', __DIR__);
$classLoader->register();

$config = new \Doctrine\ORM\Configuration();
$config->setMetadataCacheImpl(new \Doctrine\Common\Cache\ArrayCache);
$driverImpl = $config->newDefaultAnnotationDriver(array(__DIR__."/Entities"));
$config->setMetadataDriverImpl($driverImpl);

$config->setProxyDir(__DIR__ . '/Proxies');
$config->setProxyNamespace('Proxies');

$connectionOptions = array(
    'driver' => 'pdo_sqlite',
    'path' => 'database.sqlite'
);

$em = \Doctrine\ORM\EntityManager::create($connectionOptions, $config);

$helpers = array(
    'db' => new \Doctrine\DBAL\Tools\Console\Helper\ConnectionHelper($em->getConnection()),
    'em' => new \Doctrine\ORM\Tools\Console\Helper\EntityManagerHelper($em)
);