From 7d7527d7773387b1929086e7a3973501c420af0c Mon Sep 17 00:00:00 2001
From: David Boreham <david@bozemanpass.com>
Date: Tue, 14 Nov 2023 20:54:22 -0700
Subject: [PATCH] Fix no stack case

---
 stack_orchestrator/util.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/stack_orchestrator/util.py b/stack_orchestrator/util.py
index 98cfd611..97d48963 100644
--- a/stack_orchestrator/util.py
+++ b/stack_orchestrator/util.py
@@ -153,7 +153,7 @@ def get_parsed_deployment_spec(spec_file):
 def stack_is_external(stack: str):
     # Bit of a hack: if the supplied stack string represents
     # a path that exists then we assume it must be external
-    return Path(stack).exists()
+    return Path(stack).exists() if stack is not None else False
 
 
 def get_yaml():