Fix SIGINT termination issues

matemat/__main__.py

@@ -1,11 +1,11 @@
-
 from typing import Any, Dict, Iterable, Union
 
-from bottle import route, static_file, run
 import sys
 import os.path
+import bottle
 
 from matemat.db import MatematDatabase
+from matemat.webserver import cron
 from matemat.webserver.logger import Logger
 from matemat.webserver.config import get_config, parse_config_file
 from matemat.webserver.template import init as template_init
@@ -59,11 +59,11 @@ def _init(config: Dict[str, Any]):
     template_init(config)
 
 
-@route('/static/<filename:path>')
+@bottle.route('/static/<filename:path>')
 def serve_static_files(filename: str):
     config = get_config()
     staticroot = os.path.abspath(config['staticroot'])
-    return static_file(filename, root=staticroot)
+    return bottle.static_file(filename, root=staticroot)
 
 
 def main():
@@ -80,8 +80,12 @@ def main():
     host: str = config['listen']
     port: int = int(str(config['port']))
 
+    # noinspection PyUnresolvedReferences
+    from matemat.webserver.pagelets.receipt_smtp_cron import receipt_smtp_cron
     # Start the web server
-    run(host=host, port=port, debug=True)
+    bottle.run(host=host, port=port)
+    # Stop cron
+    cron.shutdown()
 
 
 if __name__ == '__main__':

matemat/webserver/cron.py

@@ -8,6 +8,10 @@ from matemat.webserver import Logger
 _CRON_STATIC_EVENT: Event = Event()
 
 
+def shutdown(*_args, **_kwargs):
+    _CRON_STATIC_EVENT.set()
+
+
 class _GlobalEventTimer(Thread):
     """
     A timer similar to threading.Timer, except that waits on an externally supplied threading.Event instance,

matemat/webserver/pagelets/__init__.py

@@ -15,4 +15,3 @@ from .moduser import moduser
 from .modproduct import modproduct
 from .userbootstrap import userbootstrap
 from .statistics import statistics
-from .receipt_smtp_cron import receipt_smtp_cron