Issue 6728 - Remove Mercurial dependency

cms/sources.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 217 matching lines @@
         return self
 
     def __exit__(self, type, value, traceback):
         return False
 
     def close(self):
         pass
 
     @property
     def version(self):
-        return randint(1, 10)
+        return randint(1, 2 ** 32)
 
     def get_path(self, filename):
         return os.path.join(self._dir, *filename.split('/'))
 
     def has_file(self, filename):
         return os.path.isfile(self.get_path(filename))
 
     def read_file(self, filename, binary=False):
         path = self.get_path(filename)
 
@@ skipping 112 matching lines @@
 
 
 def create_source(path, cached=False, revision=None):
     """Create a source from path and optional revision.
 
     `cached` flag activates caching. This can be used to optimize performance
     if no changes are expected on the filesystem after the source was created.
     This is usually the case with static generation (as opposed to dynamic
     preview).
 
-    If `revision` option is provided, the `path` is assumed to be pointing to a
-    Mercurial repository. In this case the source will return the content of
-    selected revision (using `MercurialSource`) instead of the content of the
-    directory. Note that any local changes will be ignored in this case.
-
     If `settings.ini` in the source contains `[paths]` section with an
     `additional-paths` key that contains the list of additional root folders,
     `MultiSource` will be instantiated and its bases will be the original
     source plus an additional source for each additional root folder.
     `MultiSource` looks up files in its base sources in the order they are
     provided, so the files in the additional folders will only be used if the
     original source doesn't contain that file.
     """
     source = FileSource(path)
 
@@ skipping 16 matching lines @@
             'resolve_link',
             'read_config',
             'read_template',
             'read_locale',
             'read_include',
             'exec_file',
         ]:
             setattr(source, fname, _memoize(getattr(source, fname)))
 
     return source