rust-cpython: binding for headrevs()
This uses the core `dagops::retain_heads` to give a Rust implementation
to `mercurial.dagop.headrevs`.
Testing happens for now from `test-rust-ancestors.py`
(for quick and minimal change), but it'd made more sense to put the binary
index data elsewhere and to create a new test python module
# narrowrepo.py - repository which supports narrow revlogs, lazy loading
#
# Copyright 2017 Google, Inc.
#
# 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
from mercurial import (
wireprototypes,
)
from . import (
narrowdirstate,
)
def wraprepo(repo):
"""Enables narrow clone functionality on a single local repository."""
class narrowrepository(repo.__class__):
def _makedirstate(self):
dirstate = super(narrowrepository, self)._makedirstate()
return narrowdirstate.wrapdirstate(self, dirstate)
def peer(self):
peer = super(narrowrepository, self).peer()
peer._caps.add(wireprototypes.NARROWCAP)
peer._caps.add(wireprototypes.ELLIPSESCAP)
return peer
repo.__class__ = narrowrepository