1 files changed, 166 insertions, 0 deletions
diff --git a/core/Command/Db/Migrations/GenerateCommand.php b/core/Command/Db/Migrations/GenerateCommand.php
new file mode 100644
index 00000000000..307989c845a
--- /dev/null
+++ b/core/Command/Db/Migrations/GenerateCommand.php
@@ -0,0 +1,166 @@
+<?php
+/**
+ * @author Thomas Müller <thomas.mueller@tmit.eu>
+ *
+ * @copyright Copyright (c) 2017, ownCloud GmbH
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace OC\Core\Command\Db\Migrations;
+
+
+use OC\DB\MigrationService;
+use OC\Migration\ConsoleOutput;
+use OCP\IConfig;
+use OCP\IDBConnection;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Exception\RuntimeException;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class GenerateCommand extends Command {
+
+	private static $_templateSimple =
+		'<?php
+namespace <namespace>;
+
+use OCP\Migration\ISimpleMigration;
+use OCP\Migration\IOutput;
+
+/**
+ * Auto-generated migration step: Please modify to your needs!
+ */
+class Version<version> implements ISimpleMigration {
+
+    /**
+     * @param IOutput $out
+     */
+    public function run(IOutput $out) {
+        // auto-generated - please modify it to your needs
+    }
+}
+';
+
+	private static $_templateSchema =
+		'<?php
+namespace <namespace>;
+
+use Doctrine\DBAL\Schema\Schema;
+use OCP\Migration\ISchemaMigration;
+
+/**
+ * Auto-generated migration step: Please modify to your needs!
+ */
+class Version<version> implements ISchemaMigration {
+
+	public function changeSchema(Schema $schema, array $options) {
+		// auto-generated - please modify it to your needs
+    }
+}
+';
+
+	private static $_templateSql =
+		'<?php
+namespace <namespace>;
+
+use OCP\IDBConnection;
+use OCP\Migration\ISqlMigration;
+
+/**
+ * Auto-generated migration step: Please modify to your needs!
+ */
+class Version<version> implements ISqlMigration {
+
+	public function sql(IDBConnection $connection) {
+		// auto-generated - please modify it to your needs
+    }
+}
+';
+
+	/** @var IDBConnection */
+	private $connection;
+
+	/**
+	 * @param IDBConnection $connection
+	 */
+	public function __construct(IDBConnection $connection) {
+		$this->connection = $connection;
+
+		parent::__construct();
+	}
+
+	protected function configure() {
+		$this
+			->setName('migrations:generate')
+			->addArgument('app', InputArgument::REQUIRED, 'Name of the app this migration command shall work on')
+			->addArgument('kind', InputArgument::REQUIRED, 'simple, schema or sql - defines the kind of migration to be generated');
+
+		parent::configure();
+	}
+
+	public function execute(InputInterface $input, OutputInterface $output) {
+		$appName = $input->getArgument('app');
+		$ms = new MigrationService($appName, $this->connection, new ConsoleOutput($output));
+
+		$kind = $input->getArgument('kind');
+		$version = date('YmdHis');
+		$path = $this->generateMigration($ms, $version, $kind);
+
+		$output->writeln("New migration class has been generated to <info>$path</info>");
+
+	}
+
+	/**
+	 * @param MigrationService $ms
+	 * @param string $version
+	 * @param string $kind
+	 * @return string
+	 */
+	private function generateMigration(MigrationService $ms, $version, $kind) {
+		$placeHolders = [
+			'<namespace>',
+			'<version>',
+		];
+		$replacements = [
+			$ms->getMigrationsNamespace(),
+			$version,
+		];
+		$code = str_replace($placeHolders, $replacements, $this->getTemplate($kind));
+		$dir = $ms->getMigrationsDirectory();
+		$path = $dir . '/Version' . $version . '.php';
+
+		if (file_put_contents($path, $code) === false) {
+			throw new RuntimeException('Failed to generate new migration step.');
+		}
+
+		return $path;
+	}
+
+	private function getTemplate($kind) {
+		if ($kind === 'simple') {
+			return self::$_templateSimple;
+		}
+		if ($kind === 'schema') {
+			return self::$_templateSchema;
+		}
+		if ($kind === 'sql') {
+			return self::$_templateSql;
+		}
+		throw new \InvalidArgumentException('Kind can only be one of the following: simple, schema or sql');
+	}
+
+}