gitlab: fix rate limiting check

nvchecker/get_version.py

@@ -42,6 +42,11 @@ async def get_version(name, conf, **kwargs):
   for key in handler_precedence:
     if key in conf:
       func = import_module('.source.' + key, __package__).get_version
+      break
+  else:
+    logger.error('no idea to get version info.', name=name)
+    return
+
   version = await func(name, conf, **kwargs)
   if version:
     version = version.replace('\n', ' ')
@@ -50,5 +55,3 @@ async def get_version(name, conf, **kwargs):
     except (ValueError, re.error):
       logger.exception('error occurred in version substitutions', name=name)
   return version
-  else:
-    logger.error('no idea to get version info.', name=name)

nvchecker/source/gitlab.py

@@ -2,7 +2,6 @@
 # Copyright (c) 2013-2018 lilydjwg <lilydjwg@gmail.com>, et al.
 
 import os
-import time
 import urllib.parse
 
 import structlog
@@ -66,7 +65,7 @@ def check_ratelimit(exc, name):
     raise
 
   # default -1 is used to re-raise the exception
-  n = int(res.headers.get('RateLimit-Remaining'), -1)
+  n = int(res.headers.get('RateLimit-Remaining', -1))
   if n == 0:
     logger.error('rate limited, resetting at (unknown). '
                  'Or get an API token to increase the allowance if not yet',