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##############################################################################
# Copyright (c) 2013-2017, Lawrence Livermore National Security, LLC.
# Produced at the Lawrence Livermore National Laboratory.
#
# This file is part of Spack.
# Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
# LLNL-CODE-647188
#
# For details, see https://github.com/spack/spack
# Please also see the NOTICE and LICENSE files for our notice and the LGPL.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License (as
# published by the Free Software Foundation) version 2.1, February 1999.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
# conditions of the GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
##############################################################################
import argparse

import llnl.util.tty as tty
import spack.cmd
import spack


description = "patch expanded archive sources in preparation for install"
section = "build"
level = "long"


def setup_parser(subparser):
    subparser.add_argument(
        '-n', '--no-checksum', action='store_true', dest='no_checksum',
        help="do not check downloaded packages against checksum")
    subparser.add_argument(
        'packages', nargs=argparse.REMAINDER,
        help="specs of packages to stage")


def patch(parser, args):
    if not args.packages:
        tty.die("patch requires at least one package argument")

    if args.no_checksum:
        spack.do_checksum = False

    specs = spack.cmd.parse_specs(args.packages, concretize=True)
    for spec in specs:
        package = spack.repo.get(spec)
        package.do_patch()