generator.php

<?php
/**
 * 
 * config/autoload/entitiesGenerator.local.php
    array(
        'entitiesGenerator' => array(
            'connection' => array(
                'cnx' => array(
                    'driver' => 'pdo_mysql',
                    'host' => 'localhost',
                    'port' => '3306',
                    'charset' => 'utf8',
                    //'user' => 'root',
                    //'password' => '1234',
                    //'dbname' => 'database',                
                ),
            ),
            'entities' => array(
                'namespace' => 'Package\\Entity\\',
                'path' => __DIR__.'/../../vendor/module/package/src/'
            )
    
    )
*/
$config = include __DIR__.'/../config/autoload/entitiesGenerator.local.php';
$generatorConfig = $config['entitiesGenerator'];
$connectionParams = $generatorConfig['connection']['cnx'];

include __DIR__.'/../vendor/autoload.php';
$classLoader = new \Doctrine\Common\ClassLoader('Entities', __DIR__);
$classLoader->register();

$classLoader = new \Doctrine\Common\ClassLoader('Proxies', __DIR__);
$classLoader->register();

// config
$config = new \Doctrine\ORM\Configuration();
//$config->setMetadataDriverImpl($config->newDefaultAnnotationDriver(__DIR__ . '/Entities'));
$config->setMetadataDriverImpl($config->newDefaultAnnotationDriver($generatorConfig['entities']['path']));
$config->setMetadataCacheImpl(new \Doctrine\Common\Cache\ArrayCache);
$config->setProxyDir(__DIR__ . '/Proxies');
$config->setProxyNamespace('Proxies');

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

// custom datatypes (not mapped for reverse engineering)
$em->getConnection()->getDatabasePlatform()->registerDoctrineTypeMapping('set', 'string');
$em->getConnection()->getDatabasePlatform()->registerDoctrineTypeMapping('enum', 'string');

// fetch metadata
$driver = new \Doctrine\ORM\Mapping\Driver\DatabaseDriver(
                $em->getConnection()->getSchemaManager()
);
$driver->setNamespace($generatorConfig['entities']['namespace']); 
$em->getConfiguration()->setMetadataDriverImpl($driver);
$cmf = new \Doctrine\ORM\Tools\DisconnectedClassMetadataFactory($em);
$cmf->setEntityManager($em);
$classes = $driver->getAllClassNames();
$metadata = $cmf->getAllMetadata();
$generator = new Doctrine\ORM\Tools\EntityGenerator();
$generator->setUpdateEntityIfExists(true);
$generator->setGenerateStubMethods(true);
$generator->setGenerateAnnotations(true);
$generator->generate($metadata, $generatorConfig['entities']['path']);
print 'Done!';