From 8b70142a9fa901f16cc724c0c2973f7bce53364a Mon Sep 17 00:00:00 2001
From: Natan Felles <natanfelles@gmail.com>
Date: Thu, 25 Oct 2018 03:47:11 -0300
Subject: [PATCH] Checks if class is instantiable and is a command

---
 system/CLI/CommandRunner.php | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/system/CLI/CommandRunner.php b/system/CLI/CommandRunner.php
index 46c2e18f68ff..fed9bdada3f6 100644
--- a/system/CLI/CommandRunner.php
+++ b/system/CLI/CommandRunner.php
@@ -149,6 +149,13 @@ protected function createCommandList()
 				continue;
 			}
 
+			$class = new \ReflectionClass($className);
+
+			if ( ! $class->isInstantiable() || ! $class->isSubclassOf(BaseCommand::class))
+			{
+				continue;
+			}
+
 			$class = new $className($this->logger, $this);
 
 			// Store it!