Adding logUserIn method to log a user object in

Modules/User/Contracts/Authentication.php

@@ -2,6 +2,8 @@
 
 namespace Modules\User\Contracts;
 
+use Cartalyst\Sentinel\Users\UserInterface;
+
 interface Authentication
 {
     /**
@@ -88,4 +90,11 @@ interface Authentication
      * @return int
      */
     public function id();
+
+    /**
+     * Log a user manually in
+     * @param UserInterface $user
+     * @return UserInterface
+     */
+    public function logUserIn(UserInterface $user) : UserInterface;
 }

Modules/User/Repositories/Sentinel/SentinelAuthentication.php

@@ -7,6 +7,7 @@ use Cartalyst\Sentinel\Checkpoints\ThrottlingException;
 use Cartalyst\Sentinel\Laravel\Facades\Activation;
 use Cartalyst\Sentinel\Laravel\Facades\Reminder;
 use Cartalyst\Sentinel\Laravel\Facades\Sentinel;
+use Cartalyst\Sentinel\Users\UserInterface;
 use Modules\User\Contracts\Authentication;
 use Modules\User\Events\UserHasActivatedAccount;
 
@@ -169,4 +170,9 @@ class SentinelAuthentication implements Authentication
 
         return $user->id;
     }
+
+    public function logUserIn(UserInterface $user) : UserInterface
+    {
+        return Sentinel::login($user);
+    }
 }