Noissue - don't fail on non-existent lockfile

sitescripts/extensions/bin/createNightlies.py

 # This file is part of the Adblock Plus web scripts,
 # Copyright (C) 2006-present eyeo GmbH
 #
 # Adblock Plus is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 3 as
 # published by the Free Software Foundation.
 #
 # Adblock Plus is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
@@ skipping 408 matching lines @@
             links.append(link)
         template = get_template(get_config().get('extensions', 'nightlyIndexPage'))
         template.stream({'config': self.config, 'links': links}).dump(outputPath)
 
     def read_downloads_lockfile(self):
         path = get_config().get('extensions', 'downloadLockFile')
         try:
             with open(path, 'r') as fp:
                 current = json.load(fp)
         except IOError:
-            logging.warning('No lockfile found. Creating ' + path)
+            logging.debug('No lockfile found. Creating ' + path)
             current = {}
 
         return current
 
     def write_downloads_lockfile(self, values):
         path = get_config().get('extensions', 'downloadLockFile')
         with open(path, 'w') as fp:
             json.dump(values, fp)
 
     def add_to_downloads_lockfile(self, platform, values):
@@ skipping 376 matching lines @@
                 self.uploadToChromeWebStore()
             elif self.config.type == 'edge' and self.config.clientID and self.config.clientSecret and self.config.refreshToken and self.config.tenantID:
                 self.upload_to_windows_store()
 
         finally:
             # clean up
             if self.tempdir:
                 shutil.rmtree(self.tempdir, ignore_errors=True)
 
     def download(self):
-        with open(get_config().get('extensions', 'downloadLockFile')) as fp:
-            download_info = json.load(fp)
-
+        download_info = self.read_downloads_lockfile()
         downloads = self.downloadable_repos.intersection(download_info.keys())
 
         if self.config.type in downloads:
             try:
                 self.copyRepository()
                 self.readGeckoMetadata()
 
                 for data in download_info[self.config.type]:
                     self.version = data['version']
 
@@ skipping 42 matching lines @@
 
     file = open(nightlyConfigFile, 'wb')
     nightlyConfig.write(file)
 
 
 if __name__ == '__main__':
     parser = argparse.ArgumentParser()
     parser.add_argument('--download', action='store_true', default=False)
     args = parser.parse_args()
     main(args.download)