revlog: split functionality related to deltas computation in a new module
The revlog module is getting big and this logic is getting more and more
advanced. Moving it to `mercurial.revlogutils.deltas` split a lot off
revlog.py and will help this logic to become less interleaved with revlog.
The code is simply moved without modification (but for namespace changes).
Refactoring and improvement will be made in later changesets.
# 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 . import (
narrowdirstate,
narrowrevlog,
)
def wraprepo(repo):
"""Enables narrow clone functionality on a single local repository."""
class narrowrepository(repo.__class__):
def file(self, f):
fl = super(narrowrepository, self).file(f)
narrowrevlog.makenarrowfilelog(fl, self.narrowmatch())
return fl
def _makedirstate(self):
dirstate = super(narrowrepository, self)._makedirstate()
return narrowdirstate.wrapdirstate(self, dirstate)
repo.__class__ = narrowrepository