Exit web server gracefully when user taps CTRL-Clisten-interrupt

Users were previously met with an ugly traceback. Now `pelican --listen`
invocations, when quit via CTRL-C, are followed instead by a more
user-friendly message.

1 files changed, 6 insertions, 0 deletions

diff --git a/pelican/__init__.py b/pelican/__init__.py
index a3298ff7..84ec9a49 100644
--- a/pelican/__init__.py
+++ b/pelican/__init__.py
@@ -476,6 +476,12 @@ def listen(server, port, output, excqueue=None):
             excqueue.put(traceback.format_exception_only(type(e), e)[-1])
         return
 
+    except KeyboardInterrupt:
+        stop_msg = "Keyboard interrupt received. Shutting down server."
+        logger.info(stop_msg)
+        print("\n{}".format(stop_msg))
+        httpd.socket.close()
+
 
 def main(argv=None):
     args = parse_arguments(argv)