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# Copyright 2013-2020 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)

from spack import *


class Qgraf(Package):
    """Qgraf is a computer program that generates Feynman diagrams
       for various types of QFT models"""

    homepage = "http://cfif.ist.utl.pt/~paulo/qgraf.html"
    url      = "http://anonymous:anonymous@qgraf.tecnico.ulisboa.pt/v3.4/qgraf-3.4.2.tgz"

    tags = ['hep']

    version('3.4.2', sha256='cfc029fb871c78943865ef8b51ebcd3cd4428448b8816714b049669dfdeab8aa')

    def install(self, spec, prefix):
        fortran = Executable(spack_fc)
        fortran('qgraf-{0}.f'.format(self.spec.version), '-o', 'qgraf')
        install_tree('.', prefix)