[8.x] Allow dependencies to be injected into migrations constructor

src/Illuminate/Database/MigrationServiceProvider.php

@@ -78,7 +78,7 @@ protected function registerMigrator()
         $this->app->singleton('migrator', function ($app) {
             $repository = $app['migration.repository'];
 
-            return new Migrator($repository, $app['db'], $app['files'], $app['events']);
+            return new Migrator($repository, $app['db'], $app['files'], $app['events'], $app);
         });
     }
 

src/Illuminate/Database/Migrations/Migrator.php

@@ -3,6 +3,7 @@
 namespace Illuminate\Database\Migrations;
 
 use Illuminate\Collections\Arr;
+use Illuminate\Contracts\Container\Container;
 use Illuminate\Contracts\Events\Dispatcher;
 use Illuminate\Database\ConnectionResolverInterface as Resolver;
 use Illuminate\Database\Events\MigrationEnded;
@@ -18,18 +19,18 @@
 class Migrator
 {
     /**
-     * The event dispatcher instance.
+     * The migration repository implementation.
      *
-     * @var \Illuminate\Contracts\Events\Dispatcher
+     * @var \Illuminate\Database\Migrations\MigrationRepositoryInterface
      */
-    protected $events;
+    protected $repository;
 
     /**
-     * The migration repository implementation.
+     * The connection resolver instance.
      *
-     * @var \Illuminate\Database\Migrations\MigrationRepositoryInterface
+     * @var \Illuminate\Database\ConnectionResolverInterface
      */
-    protected $repository;
+    protected $resolver;
 
     /**
      * The filesystem instance.
@@ -39,11 +40,18 @@ class Migrator
     protected $files;
 
     /**
-     * The connection resolver instance.
+     * The event dispatcher instance.
      *
-     * @var \Illuminate\Database\ConnectionResolverInterface
+     * @var \Illuminate\Contracts\Events\Dispatcher
      */
-    protected $resolver;
+    protected $events;
+
+    /**
+     * The container implementation.
+     *
+     * @var \Illuminate\Contracts\Container\Container|null
+     */
+    protected $container;
 
     /**
      * The name of the default connection.
@@ -73,17 +81,20 @@ class Migrator
      * @param  \Illuminate\Database\ConnectionResolverInterface  $resolver
      * @param  \Illuminate\Filesystem\Filesystem  $files
      * @param  \Illuminate\Contracts\Events\Dispatcher|null  $dispatcher
+     * @param  \Illuminate\Contracts\Container\Container|null  $container
      * @return void
      */
     public function __construct(MigrationRepositoryInterface $repository,
                                 Resolver $resolver,
                                 Filesystem $files,
-                                Dispatcher $dispatcher = null)
+                                Dispatcher $dispatcher = null,
+                                Container $container = null)
     {
+        $this->repository = $repository;
+        $this->resolver = $resolver;
         $this->files = $files;
         $this->events = $dispatcher;
-        $this->resolver = $resolver;
-        $this->repository = $repository;
+        $this->container = $container;
     }
 
     /**
@@ -450,7 +461,11 @@ public function resolve($file)
     {
         $class = Str::studly(implode('_', array_slice(explode('_', $file), 4)));
 
-        return new $class;
+        if (is_null($this->container)) {
+            return new $class;
+        }
+
+        return $this->container->make($class);
     }
 
     /**