# query.py

# Implements Query.

#

# Copyright (C) 2012-2016 Red Hat, Inc.

#

# This copyrighted material is made available to anyone wishing to use,

# modify, copy, or redistribute it subject to the terms and conditions of

# the GNU General Public License v.2, or (at your option) any later version.

# This program is distributed in the hope that it will be useful, but WITHOUT

# ANY WARRANTY expressed or implied, including the implied warranties of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General

# Public License for more details.  You should have received a copy of the

# GNU General Public License along with this program; if not, write to the

# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

# 02110-1301, USA.  Any Red Hat trademarks that are incorporated in the

# source code or documentation are not subject to the GNU General Public

# License and may only be used or replicated with the express permission of

# Red Hat, Inc.

#

from __future__ import absolute_import

from __future__ import unicode_literals

import hawkey

from hawkey import Query

from dnf.i18n import ucd

from dnf.pycomp import basestring

def _by_provides(sack, patterns, ignore_case=False, get_query=False):

    if isinstance(patterns, basestring):

        patterns = [patterns]

    q = sack.query()

    flags = []

    if ignore_case:

        flags.append(hawkey.ICASE)

    q.filterm(*flags, provides__glob=patterns)

    if get_query:

        return q

    return q.run()

def _per_nevra_dict(pkg_list):

    return {ucd(pkg):pkg for pkg in pkg_list}