view hgext/remotefilelog/shallowstore.py @ 40507:e2a1584e9e3f

remotefilelog: rip out lz4 support

Some methods are left teased out so it's easier to build a migration
extension from v1 packs to v2. I also anticipate those methods will be
of use if we get around to adding configurable compression engines
before we end up jettisoning packs.

I think it would make sense to register one-shot `compress` and
`decompress` methods on our compression engines in util.py, but
indygreg mentioned that might not be straightforward.

Differential Revision: https://phab.mercurial-scm.org/D4944

# shallowstore.py - shallow store for interacting with shallow repos
#
# Copyright 2013 Facebook, 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

def wrapstore(store):
    class shallowstore(store.__class__):
        def __contains__(self, path):
            # Assume it exists
            return True

    store.__class__ = shallowstore

    return store