added version command and api endpoint (#321)

src/API/HealthcheckController.php

@@ -11,6 +11,7 @@ declare(strict_types=1);
 
 namespace App\API;
 
+use App\Constants;
 use FOS\RestBundle\Controller\Annotations as Rest;
 use FOS\RestBundle\View\View;
 use FOS\RestBundle\View\ViewHandlerInterface;
@@ -46,4 +47,25 @@ class HealthcheckController extends Controller
 
         return $this->viewHandler->handle($view);
     }
+
+    /**
+     * @SWG\Response(
+     *     response=200,
+     *     description="Returns version information about the current release",
+     * )
+     *
+     * @Rest\Get(path="/version")
+     */
+    public function versionAction()
+    {
+        $version = [
+            'version' => Constants::VERSION,
+            'candidate' => Constants::STATUS,
+            'semver' => Constants::VERSION . '-' . Constants::STATUS,
+            'name' => Constants::NAME,
+            'copyright' => 'Kimai 2 - ' . Constants::VERSION . ' ' . Constants::STATUS . ' (' . Constants::NAME . ') by Kevin Papst and contributors.',
+        ];
+
+        return $this->viewHandler->handle(new View($version, 200));
+    }
 }