feat: (headless) add Ctrl+C try-except

src/headless_pkg/src/headless_node.py

@@ -1,5 +1,6 @@
 import rclpy
 from rclpy.node import Node
+from rclpy.executors import ExternalShutdownException
 from rclpy import qos
 from rclpy.duration import Duration
 
@@ -330,9 +331,14 @@ def is_user_in_group(group_name: str) -> bool:
 
 
 def main(args=None):
+    try:
         rclpy.init(args=args)
+
         node = Headless()
         rclpy.spin(node)
+    except (KeyboardInterrupt, ExternalShutdownException):
+        print("Caught shutdown signal. Exiting...")
+    finally:
         rclpy.shutdown()