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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 tarfile

from spack import *


class Minighost(MakefilePackage):
    """Proxy Application. A Finite Difference proxy
       application which implements a difference stencil
       across a homogenous three dimensional domain.
    """

    homepage = "http://mantevo.org"
    url      = "http://mantevo.org/downloads/releaseTarballs/miniapps/MiniGhost/miniGhost_1.0.1.tar.gz"

    tags = ['proxy-app']

    version('1.0.1', '2a4ac4383e9be00f87b6067c3cfe6463')

    variant('mpi', default=True, description='Enable MPI Support')

    depends_on('mpi', when='+mpi')

    parallel = False

    @property
    def build_targets(self):
        targets = ['--directory=miniGhost_ref']

        if '+mpi' in self.spec:
            targets.append('PROTOCOL=-D_MG_MPI')
            targets.append('FC={0}'.format(self.spec['mpi'].mpif77))
            targets.append('CC={0}'.format(self.spec['mpi'].mpicc))
            targets.append(
                'LIBS=-lm -lgfortran -lmpi_usempi -lmpi_mpifh -lmpi')
        else:
            targets.append('PROTOCOL=-D_MG_SERIAL')
            targets.append('FC=f77')
            targets.append('CC=cc')
            targets.append('LIBS=-lm -lgfortran')

        if '%gcc' in self.spec:
            targets.append('COMPILER_SUITE=gnu')
        elif '%cce' in self.spec:
            targets.append('COMPILER_SUITE=cray')
        elif '%intel' in self.spec:
            targets.append('COMPILER_SUITE=intel')
        elif '%pgi' in self.spec:
            targets.append('COMPILER_SUITE=pgi')

        return targets

    def edit(self, spec, prefix):
        inner_tar = tarfile.open(
            'miniGhost_ref_{0}.tar.gz'.format(self.version.up_to(3)))
        inner_tar.extractall()

    def install(self, spec, prefix):
        # Manual Installation
        mkdirp(prefix.bin)
        mkdirp(prefix.doc)

        install('miniGhost_ref/miniGhost.x', prefix.bin)
        install('miniGhost_ref/default-settings.h', prefix.bin)

        if '+mpi' in spec:
            install('miniGhost_ref/runtest.mpi', prefix.bin)
            install('miniGhost_ref/runtest.mpi.ds', prefix.bin)
        else:
            install('miniGhost_ref/runtest.serial', prefix.bin)

        install('README', prefix.doc)