# repoviewutil.py - constaints data relevant to repoview.py and other module

#

# Copyright 2012 Pierre-Yves David <pierre-yves.david@ens-lyon.org>

#                Logilab SA        <contact@logilab.fr>

#

# 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

### Nearest subset relation

# Nearest subset of filter X is a filter Y so that:

# * Y is included in X,

# * X - Y is as small as possible.

# This create and ordering used for branchmap purpose.

# the ordering may be partial

subsettable = {

    None: b'visible',

    b'visible-hidden': b'visible',

    b'visible': b'served',

    b'served.hidden': b'served',

    b'served': b'immutable',

    b'immutable': b'base',

}