Add a command to manually migrate to big ints

Signed-off-by: Joas Schilling <coding@schilljs.com>

core/Command/Db/ConvertFilecacheBigInt.php

@@ -0,0 +1,101 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Joas Schilling <coding@schilljs.com>
+ *
+ * @author Joas Schilling <coding@schilljs.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Core\Command\Db;
+
+use Doctrine\DBAL\Types\Type;
+use OC\DB\SchemaWrapper;
+use OCP\IDBConnection;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Question\ConfirmationQuestion;
+
+class ConvertFilecacheBigInt extends Command {
+
+	/** @var IDBConnection */
+	private $connection;
+
+	/**
+	 * @param IDBConnection $connection
+	 */
+	public function __construct(IDBConnection $connection) {
+		$this->connection = $connection;
+		parent::__construct();
+	}
+
+	protected function configure() {
+		$this
+			->setName('db:convert-filecache-bigint')
+			->setDescription('Convert the ID columns of the filecache to BigInt');
+	}
+
+	protected function getColumnsByTable() {
+		return [
+			'filecache' => ['fileid', 'storage', 'parent', 'mimetype', 'mimepart'],
+			'mimetypes' => ['id'],
+			'storages' => ['numeric_id'],
+		];
+	}
+
+	protected function execute(InputInterface $input, OutputInterface $output) {
+
+		$schema = new SchemaWrapper($this->connection);
+		$updates = [];
+
+		$tables = $this->getColumnsByTable();
+		foreach ($tables as $tableName => $columns) {
+			$table = $schema->getTable($tableName);
+
+			foreach ($columns as $columnName) {
+				$column = $table->getColumn($columnName);
+				if ($column->getType()->getName() !== Type::BIGINT) {
+					$column->setType(Type::getType(Type::BIGINT));
+					$column->setOptions(['length' => 20]);
+
+					$updates[] = $tableName . '.' . $columnName;
+				}
+			}
+		}
+
+		if (empty($updates)) {
+			$output->writeln('<info>All tables already up to date!</info>');
+			return 0;
+		}
+
+		$output->writeln('<comment>This can take up to hours, depending on the number of files in your instance!</comment>');
+
+		if ($input->isInteractive()) {
+			$helper = $this->getHelper('question');
+			$question = new ConfirmationQuestion('Continue with the conversion (y/n)? [n] ', false);
+
+			if (!$helper->ask($input, $output, $question)) {
+				return 1;
+			}
+		}
+
+		$this->connection->migrateToSchema($schema->getWrappedSchema());
+
+		return 0;
+	}
+}

core/register_command.php

@@ -85,6 +85,7 @@ if (\OC::$server->getConfig()->getSystemValue('installed', false)) {
 
 	$application->add(new OC\Core\Command\Db\ConvertType(\OC::$server->getConfig(), new \OC\DB\ConnectionFactory(\OC::$server->getSystemConfig())));
 	$application->add(new OC\Core\Command\Db\ConvertMysqlToMB4(\OC::$server->getConfig(), \OC::$server->getDatabaseConnection(), \OC::$server->getURLGenerator(), \OC::$server->getLogger()));
+	$application->add(new OC\Core\Command\Db\ConvertFilecacheBigInt(\OC::$server->getDatabaseConnection()));
 	$application->add(new OC\Core\Command\Db\Migrations\StatusCommand(\OC::$server->getDatabaseConnection()));
 	$application->add(new OC\Core\Command\Db\Migrations\MigrateCommand(\OC::$server->getDatabaseConnection()));
 	$application->add(new OC\Core\Command\Db\Migrations\GenerateCommand(\OC::$server->getDatabaseConnection()));