From a4335ce8ac214994c9a01bf84a9e9753040c5019 Mon Sep 17 00:00:00 2001
From: Daan Selen <dselen@nerthus.nl>
Date: Tue, 25 Feb 2025 10:39:07 +0100
Subject: [PATCH] Expanded logic in replace_placeholder() function so this is
 easier to work with.

---
 meshbook.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/meshbook.py b/meshbook.py
index f22e536..c878baa 100644
--- a/meshbook.py
+++ b/meshbook.py
@@ -102,7 +102,14 @@ async def replace_placeholders(meshbook: dict) -> dict:
     Replace the placeholders in both name and command fields of the tasks. According to the variables defined in the variables list.
     '''
 
-    variables = {var["name"]: var["value"] for var in meshbook.get("variables", [])}
+    variables = {}
+    if "variables" in meshbook and isinstance(meshbook["variables"], list):
+        for var in meshbook["variables"]:
+            var_name = var["name"]
+            var_value = var["value"]
+            variables[var_name] = var_value
+    else:
+        return meshbook
 
     for task in meshbook.get("tasks", []):
         task_name = task.get("name")