fix exception when AUR package disappears

nvchecker/main.py

@@ -46,6 +46,10 @@ def write_verfile():
   util.write_verfile(args.newver, g_curver)
 
 def print_version_update(name, version):
+  if version is None:
+    task_dec()
+    return
+
   oldver = g_oldver.get(name, None)
   if not oldver or parse_version(oldver) < parse_version(version):
     logger.info('%s: updated version %s', name, version)

nvchecker/source/aur.py

@@ -1,10 +1,13 @@
 from functools import partial
 import json
+import logging
 
 from tornado.httpclient import AsyncHTTPClient
 
 AUR_URL = 'https://aur.archlinux.org/rpc.php?type=info&arg='
 
+logger = logging.getLogger(__name__)
+
 def get_version(name, conf, callback):
   aurname = conf.get('aur') or name
   url = AUR_URL + aurname
@@ -12,5 +15,11 @@ def get_version(name, conf, callback):
 
 def _aur_done(name, callback, res):
   data = json.loads(res.body.decode('utf-8'))
+
+  if not data['results']:
+    logger.error('AUR upstream not found for %s', name)
+    callback(name, None)
+    return
+
   version = data['results']['Version']
   callback(name, version)