Add migration generator

framework/core/src/Console/GenerateMigrationCommand.php

@@ -0,0 +1,101 @@
+<?php
+/*
+ * This file is part of Flarum.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Flarum\Console;
+
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Question\Question;
+use Flarum\Migrations\MigrationCreator;
+
+class GenerateMigrationCommand extends Command
+{
+    /**
+     * @var MigrationCreator
+     */
+    protected $creator;
+
+    public function __construct(MigrationCreator $creator)
+    {
+        parent::__construct();
+
+        $this->creator = $creator;
+    }
+
+    protected function configure()
+    {
+        $this
+            ->setName('generate:migration')
+            ->setDescription("Generate a migration.")
+            ->addArgument(
+                'name',
+                InputArgument::REQUIRED,
+                'The name of the migration.'
+            )
+            ->addOption(
+                'extension',
+                null,
+                InputOption::VALUE_REQUIRED,
+                'The extension to generate the migration for.'
+            )
+            ->addOption(
+                'create',
+                null,
+                InputOption::VALUE_REQUIRED,
+                'The table to be created.'
+            )
+            ->addOption(
+                'table',
+                null,
+                InputOption::VALUE_REQUIRED,
+                'The table to migrate.'
+            );
+    }
+
+    /**
+     * Execute the console command.
+     *
+     * @return void
+     */
+    protected function fire()
+    {
+        $name = $this->input->getArgument('name');
+
+        $extension = $this->input->getOption('extension');
+
+        $table = $this->input->getOption('table');
+
+        $create = $this->input->getOption('create');
+
+        if (! $table && is_string($create)) {
+            $table = $create;
+        }
+
+        $this->writeMigration($name, $extension, $table, $create);
+    }
+
+    /**
+     * Write the migration file to disk.
+     *
+     * @param string $name
+     * @param string $extension
+     * @param string $table
+     * @param bool $create
+     * @return string
+     */
+    protected function writeMigration($name, $extension, $table, $create)
+    {
+        $path = $this->creator->create($name, $extension, $table, $create);
+
+        $file = pathinfo($path, PATHINFO_FILENAME);
+
+        $this->info("Created migration: $file");
+    }
+}