Add console extender (#2057)

* Made the console command system extender-friendly

* Added console extender

* Added ConsoleTestCase to integration tests

* Added integration tests for console extender

* Marked event-based console extension system as deprecated

* Moved trimming command output of whitespace into superclass

* Renamed 'add' to 'command'

* Added special processing for laravel commands

* Code style fixes

* More style fixes

* Fixed $this->container

src/Console/ConsoleServiceProvider.php

@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of Flarum.
+ *
+ * For detailed copyright and license information, please view the
+ * LICENSE file that was distributed with this source code.
+ */
+
+namespace Flarum\Console;
+
+use Flarum\Database\Console\GenerateMigrationCommand;
+use Flarum\Database\Console\MigrateCommand;
+use Flarum\Database\Console\ResetCommand;
+use Flarum\Foundation\AbstractServiceProvider;
+use Flarum\Foundation\Console\CacheClearCommand;
+
+class ConsoleServiceProvider extends AbstractServiceProvider
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function register()
+    {
+        $this->app->singleton('flarum.console.commands', function () {
+            return [
+                CacheClearCommand::class,
+                GenerateMigrationCommand::class,
+                MigrateCommand::class,
+                ResetCommand::class,
+            ];
+        });
+    }
+}

src/Console/Event/Configuring.php

@@ -14,9 +14,7 @@ use Illuminate\Console\Command;
 use Symfony\Component\Console\Application as ConsoleApplication;
 
 /**
- * Configure the console application.
- *
- * This event is fired after the core commands are added to the application.
+ * @deprecated
  */
 class Configuring
 {

src/Console/Server.php

@@ -39,11 +39,14 @@ class Server
             $console->add($command);
         }
 
-        $this->extend($console);
+        $this->extend($console); // deprecated
 
         exit($console->run());
     }
 
+    /**
+     * @deprecated
+     */
     private function extend(ConsoleApplication $console)
     {
         $app = Application::getInstance();

src/Extend/Console.php

@@ -0,0 +1,37 @@
+<?php
+
+/*
+ * This file is part of Flarum.
+ *
+ * For detailed copyright and license information, please view the
+ * LICENSE file that was distributed with this source code.
+ */
+
+namespace Flarum\Extend;
+
+use Flarum\Extension\Extension;
+use Illuminate\Contracts\Container\Container;
+
+class Console implements ExtenderInterface
+{
+    protected $addCommands = [];
+
+    /**
+     * Add a command to the console.
+     *
+     * @param string $command ::class attribute of command class, which must extend Flarum\Console\AbstractCommand
+     */
+    public function command($command)
+    {
+        $this->addCommands[] = $command;
+
+        return $this;
+    }
+
+    public function extend(Container $container, Extension $extension = null)
+    {
+        $container->extend('flarum.console.commands', function ($existingCommands) {
+            return array_merge($existingCommands, $this->addCommands);
+        });
+    }
+}

src/Foundation/InstalledApp.php

@@ -9,13 +9,10 @@
 
 namespace Flarum\Foundation;
 
-use Flarum\Database\Console\GenerateMigrationCommand;
-use Flarum\Database\Console\MigrateCommand;
-use Flarum\Database\Console\ResetCommand;
-use Flarum\Foundation\Console\CacheClearCommand;
 use Flarum\Foundation\Console\InfoCommand;
 use Flarum\Http\Middleware\DispatchRoute;
 use Flarum\Settings\SettingsRepositoryInterface;
+use Illuminate\Console\Command;
 use Illuminate\Contracts\Container\Container;
 use Laminas\Stratigility\Middleware\OriginalMessages;
 use Laminas\Stratigility\MiddlewarePipe;
@@ -115,12 +112,21 @@ class InstalledApp implements AppInterface
      */
     public function getConsoleCommands()
     {
-        return [
-            $this->container->make(GenerateMigrationCommand::class),
-            $this->container->make(InfoCommand::class, ['config' => $this->config]),
-            $this->container->make(MigrateCommand::class),
-            $this->container->make(ResetCommand::class),
-            $this->container->make(CacheClearCommand::class),
-        ];
+        $commands = [];
+
+        // The info command is a special case, as it requires a config parameter that's only available here.
+        $commands[] = $this->container->make(InfoCommand::class, ['config' => $this->config]);
+
+        foreach ($this->container->make('flarum.console.commands') as $command) {
+            $newCommand = $this->container->make($command);
+
+            if ($newCommand instanceof Command) {
+                $newCommand->setLaravel($this->container);
+            }
+
+            $commands[] = $newCommand;
+        }
+
+        return $commands;
     }
 }

src/Foundation/InstalledSite.php

@@ -12,6 +12,7 @@ namespace Flarum\Foundation;
 use Flarum\Admin\AdminServiceProvider;
 use Flarum\Api\ApiServiceProvider;
 use Flarum\Bus\BusServiceProvider;
+use Flarum\Console\ConsoleServiceProvider;
 use Flarum\Database\DatabaseServiceProvider;
 use Flarum\Database\MigrationServiceProvider;
 use Flarum\Discussion\DiscussionServiceProvider;
@@ -113,6 +114,7 @@ class InstalledSite implements SiteInterface
         $laravel->register(AdminServiceProvider::class);
         $laravel->register(ApiServiceProvider::class);
         $laravel->register(BusServiceProvider::class);
+        $laravel->register(ConsoleServiceProvider::class);
         $laravel->register(DatabaseServiceProvider::class);
         $laravel->register(DiscussionServiceProvider::class);
         $laravel->register(ExtensionServiceProvider::class);