Neos\Flow\Persistence\Doctrine\Service::getMigrationConfiguration PHP Method

    protected function getMigrationConfiguration()
    {
        $this->output = [];
        $that = $this;
        $outputWriter = new OutputWriter(function ($message) use($that) {
            $that->output[] = $message;
        });
        /** @var \Doctrine\DBAL\Connection $connection */
        $connection = $this->entityManager->getConnection();
        $schemaManager = $connection->getSchemaManager();
        if ($schemaManager->tablesExist(array('flow3_doctrine_migrationstatus')) === true) {
            $schemaManager->renameTable('flow3_doctrine_migrationstatus', self::DOCTRINE_MIGRATIONSTABLENAME);
        }
        $configuration = new Configuration($connection, $outputWriter);
        $configuration->setMigrationsNamespace(\Neos\Flow\Persistence\Doctrine\Migrations::class);
        $configuration->setMigrationsDirectory(Files::concatenatePaths([FLOW_PATH_DATA, 'DoctrineMigrations']));
        $configuration->setMigrationsTableName(self::DOCTRINE_MIGRATIONSTABLENAME);
        $configuration->createMigrationTable();
        $databasePlatformName = $this->getDatabasePlatformName();
        /** @var PackageInterface $package */
        foreach ($this->packageManager->getActivePackages() as $package) {
            $path = Files::concatenatePaths([$package->getPackagePath(), 'Migrations', $databasePlatformName]);
            if (is_dir($path)) {
                $configuration->registerMigrationsFromDirectory($path);
            }
        }
        return $configuration;
    }