copies-rust: move the parent token to an enum
We carry around information about which parent of a revision is been dealt
with. So far this was a `usize` but as we are about to pass it around to more
function it seems like a good idea to start cleaning this up and use a proper
enum.
Differential Revision: https://phab.mercurial-scm.org/D9420
# __init__.py - Startup and module loading logic for Mercurial.
#
# Copyright 2015 Gregory Szorc <gregory.szorc@gmail.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from __future__ import absolute_import
# Allow 'from mercurial import demandimport' to keep working.
import hgdemandimport
demandimport = hgdemandimport