redo コマンドを実装

README.md

@@ -157,6 +157,16 @@ $ vendor/bin/db-migrate down
 down: 20140829-02.sql
 ```
 
+### `db-migrate redo`
+
+down -> up を連続して実行します。
+
+```console
+$ vendor/bin/db-migrate redo
+down: 20140829-02.sql
+up: 20140829-02.sql
+```
+
 ### `db-migrate set`
 
 マイグレーションが適用済であるとマークします。引数としてスクリプトのファイル名を指定します。

src/Command/RedoCommand.php

@@ -0,0 +1,21 @@
+<?php
+namespace ngyuki\DbMigrate\Command;
+
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class RedoCommand extends AbstractCommand
+{
+    protected function configure()
+    {
+        parent::configure();
+
+        $this->setName('redo')->setDescription('down/up one version');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $this->migrator->down();
+        $this->migrator->up();
+    }
+}

src/Console/Application.php

@@ -24,6 +24,7 @@ public function __construct()
         $commands[] = new Command\MigrateCommand();
         $commands[] = new Command\UpCommand();
         $commands[] = new Command\DownCommand();
+        $commands[] = new Command\RedoCommand();
         $commands[] = new Command\StatusCommand();
         $commands[] = new Command\SetCommand();
         $commands[] = new Command\UnsetCommand();