feat: properly handle SIGINT (ctrl-c) in BEC GUI server -> calls qapplication.quit()

bec_widgets/cli/server.py

@@ -1,4 +1,5 @@
 import inspect
+import signal
 import sys
 from contextlib import redirect_stderr, redirect_stdout
 from typing import Union
@@ -200,6 +201,13 @@ def main():
 
             app.aboutToQuit.connect(server.shutdown)
 
+            def sigint_handler(*args):
+                # display message, for people to let it terminate gracefully
+                print("Caught SIGINT, exiting")
+                app.quit()
+
+            signal.signal(signal.SIGINT, sigint_handler)
+
             sys.exit(app.exec())