Shutdown immediately when Ctrl-C is given twice

Try sys.exit() to shutdown immediately after Ctrl-C keyboard
interrupt was given twice.


git-svn-id: https://linkchecker.svn.sourceforge.net/svnroot/linkchecker/trunk/linkchecker@3695 e7d03fd6-7b0d-0410-9947-9c21f3af8025

TODO

@@ -1,8 +1,3 @@
-- [FEATURE] Hit Ctrl-C once displays active URLs and waits for a timeout.
-  Hitting it *again* after that should shut down immediately, not caring
-  about cleanup. Here is a starting point recipe:
-  http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/496735
-
 - [BUG REPORT] the web interface only runs on the server it is installed on.
   The ALLOWED_HOSTS and ALLOWED_SERVERS variables in lc.cgi don't work and
   are not (well) documented.

linkcheck/director/__init__.py

@@ -74,6 +74,8 @@ def interrupt (aggregate):
         try:
             linkcheck.log.warn(linkcheck.LOG_CHECK,
                _("keyboard interrupt; waiting for active threads to finish"))
+            linkcheck.log.warn(linkcheck.LOG_CHECK,
+               _("another keyboard interrupt will exit immediately"))
             print_active_threads(aggregate)
             abort(aggregate)
             break
@@ -100,8 +102,10 @@ def abort (aggregate):
             aggregate.logger.end_log_output()
             break
         except KeyboardInterrupt:
-            linkcheck.log.warn(linkcheck.LOG_CHECK, _("shutdown in progress"))
+            linkcheck.log.warn(linkcheck.LOG_CHECK, _("keyboard interrupt; force shutdown"))
             print_active_threads(aggregate)
+            import sys
+            sys.exit(1)
 
 
 def get_aggregate (config):