Improve install command, add custom migrations system

Implemented our own migration repository + migrator (based on Laravel's
stuff) so that we can keep track of which migrations have been run for
core and per-extension. That way we can simple call the migrator to
upgrade core/extensions, and to uninstall extensions.

framework/core/src/Console/ConsoleServiceProvider.php

@@ -1,23 +0,0 @@
-<?php namespace Flarum\Console;
-
-use Illuminate\Support\ServiceProvider;
-
-class ConsoleServiceProvider extends ServiceProvider
-{
-    /**
-     * Bootstrap the application events.
-     *
-     * @return void
-     */
-    public function boot()
-    {
-        //$this->commands('Flarum\Console\InstallCommand');
-        $this->commands('Flarum\Console\SeedCommand');
-        $this->commands('Flarum\Console\ImportCommand');
-        $this->commands('Flarum\Console\GenerateExtensionCommand');
-    }
-
-    public function register()
-    {
-    }
-}

framework/core/src/Console/GenerateExtensionCommand.php

@@ -1,37 +1,28 @@
 <?php namespace Flarum\Console;
 
-use Illuminate\Console\Command;
-use Illuminate\Foundation\Application;
+use Illuminate\Contracts\Container\Container;
 use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Input\InputArgument;
 
 class GenerateExtensionCommand extends Command
 {
-
     /**
-     * The console command name.
-     *
-     * @var string
+     * @var Container
      */
-    protected $name = 'generate:extension';
+    protected $container;
 
-    /**
-     * The console command description.
-     *
-     * @var string
-     */
-    protected $description = 'Generate a Flarum extension skeleton.';
-
-    /**
-     * Create a new command instance.
-     *
-     * @return void
-     */
-    public function __construct(Application $app)
+    public function __construct(Container $container)
     {
-        parent::__construct();
+        $this->container = $container;
 
-        $this->app = $app;
+        parent::__construct();
+    }
+
+    protected function configure()
+    {
+        $this
+            ->setName('generate:extension')
+            ->setDescription("Generate a Flarum extension skeleton.");
     }
 
     /**
@@ -39,7 +30,7 @@ class GenerateExtensionCommand extends Command
      *
      * @return mixed
      */
-    public function fire()
+    protected function fire()
     {
         do {
             $vendor = $this->ask('Vendor name:');

framework/core/src/Console/SeedCommand.php

@@ -1,58 +0,0 @@
-<?php namespace Flarum\Console;
-
-use Illuminate\Console\Command;
-use Symfony\Component\Console\Input\InputOption;
-use Symfony\Component\Console\Input\InputArgument;
-
-class SeedCommand extends Command
-{
-
-    /**
-     * The console command name.
-     *
-     * @var string
-     */
-    protected $name = 'seed';
-
-    /**
-     * The console command description.
-     *
-     * @var string
-     */
-    protected $description = 'Seed Flarum\'s database with fake data.';
-
-    /**
-     * Execute the console command.
-     *
-     * @return mixed
-     */
-    public function fire()
-    {
-        $this->call('db:seed', ['--class' => 'Flarum\Core\Seeders\UsersTableSeeder']);
-        $this->call('db:seed', ['--class' => 'Flarum\Core\Seeders\DiscussionsTableSeeder']);
-    }
-
-    /**
-     * Get the console command arguments.
-     *
-     * @return array
-     */
-    protected function getArguments()
-    {
-        return [
-            // ['example', InputArgument::REQUIRED, 'An example argument.'],
-        ];
-    }
-
-    /**
-     * Get the console command options.
-     *
-     * @return array
-     */
-    protected function getOptions()
-    {
-        return [
-            // ['example', null, InputOption::VALUE_OPTIONAL, 'An example option.', null],
-        ];
-    }
-}

framework/core/src/Console/UpgradeCommand.php

@@ -0,0 +1,56 @@
+<?php namespace Flarum\Console;
+
+use Illuminate\Contracts\Container\Container;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class UpgradeCommand extends Command
+{
+    /**
+     * @var Container
+     */
+    protected $container;
+
+    public function __construct(Container $container)
+    {
+        $this->container = $container;
+
+        parent::__construct();
+    }
+
+    protected function configure()
+    {
+        $this
+            ->setName('upgrade')
+            ->setDescription("Run Flarum's upgrade script");
+    }
+
+    /**
+     * @inheritdoc
+     */
+    protected function fire()
+    {
+        $this->info('Upgrading Flarum...');
+
+        $this->upgrade();
+
+        $this->info('DONE.');
+    }
+
+    protected function upgrade()
+    {
+        $this->container->bind('Illuminate\Database\Schema\Builder', function($container) {
+            return $container->make('Illuminate\Database\ConnectionInterface')->getSchemaBuilder();
+        });
+
+        $migrator = $this->container->make('Flarum\Migrations\Migrator');
+
+        $migrator->run(base_path('core/migrations'));
+
+        foreach ($migrator->getNotes() as $note) {
+            $this->info($note);
+        }
+    }
+}