requires: re-use vfs.tryread for simplicity
Avoids calling `set` twice or having to re-raise an exception and implements the routine with a single return expression.
# 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.
def wrapstore(store):
class shallowstore(store.__class__):
def __contains__(self, path):
# Assume it exists
return True
store.__class__ = shallowstore
return store