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# Copyright 2013-2022 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)

import os

from spack.package import *


class Rnpletal(AutotoolsPackage):
    """The acronym RNPL stands for Rapid Numerical Prototyping Language. It is
    a language for expressing time-dependent systems of partial differential
    equations and the information necessary for solving them using
    finite-difference techniques. It has advantages over traditional
    programming languages such as C and FORTRAN because it only requires the
    user to enter the essential structure of the program while it fills in the
    details."""

    homepage = "http://laplace.physics.ubc.ca/People/matt/Rnpl/index.html"
    url      = "ftp://laplace.physics.ubc.ca/pub/rnpletal/rnpletal.tar.gz"

    # RNPL is distributed via tarballs that are updated from time to time, but
    # which carry no version number.
    version('develop', sha256='2886f96393b64703fccf61b3dbc34e0fa45a79297232be76352f29cb83863d4d')

    maintainers = ['eschnett']

    variant('packages', multi=True,
            description="Packages to enable",
            values=(
                # "rvs",
                # "cliser",
                "rnpl",
                # "svs",
                # "vutil",
                # "utilmath",
                # "visutil",
                # "utilio",
                # "cvtestsdf",
                # "netlib_linpack",
                # "netlib_odepack",
                # "netlib_fftpack",
                # "netlib_lapack3.0",
            ), default="rnpl")

    patch("corrections.diff")

    depends_on('bison', type='build')
    depends_on('flex', type='build')

    parallel = False

    # This is only one of the configure scripts. (We will use other scripts as
    # well, depending on which packages will be installed.) We define this so
    # that Spack does not try to create a configure script.
    @property
    def configure_abs_path(self):
        return os.path.join(
            os.path.abspath(self.configure_directory), 'rnpl', 'configure')

    def configure(self, spec, prefix):
        options = ['--prefix={0}'.format(prefix)]
        for package in self.spec.variants['packages'].value:
            with working_dir(package):
                configure(*options)

    def build(self, spec, prefix):
        for package in self.spec.variants['packages'].value:
            with working_dir(package):
                make()

    def install(self, spec, prefix):
        for package in self.spec.variants['packages'].value:
            with working_dir(package):
                make("install")

    @property
    def libs(self):
        return find_libraries(
            ["libbbhutil", "librnpl"],
            root=self.prefix, shared=False, recursive=True
        )