# 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)

from spack.pkg.builtin.boost import Boost


class Metall(CMakePackage):
    """A Persistent Memory Allocator For Data-Centric Analytics"""

    homepage = "https://github.com/LLNL/metall"
    git      = "https://github.com/LLNL/metall.git"
    url      = "https://github.com/LLNL/metall/archive/refs/tags/v0.20.tar.gz"

    maintainers = ['KIwabuchi', 'rogerpearce', 'mayagokhale']

    tags = ['e4s']

    version('master', branch='master')
    version('develop', branch='develop')

    version('0.20', sha256='cafe54c682004a66a059f54e2d7128ea7622e9941ea492297d04c260675e9af4')
    version('0.19', sha256='541f428d4a7e629e1e60754f9d5f5e84fe973d421b2647f5ed2ec25b977ddd56')
    version('0.18', sha256='cd1fee376d0523d43e43b92c43731d45a2c4324278a071a5f626f400afecef24')
    version('0.17', sha256='8de6ec2a430a141a2ad465ccd40ba9d0eb0c57d9f2f2de657fe837a73c466e61')
    version('0.16', sha256='190fa6936cbbfad1844659eb1fcfd1ad8c5880f60e76e223e33c506d371ea3a3')
    version('0.15', sha256='a1ea475ce1297b0c4cdf450544dc60ecf1b0a30c548b08ba77ccda5585df7248')
    version('0.14', sha256='386a6db0cfd3b3693cf8b0de323dcb60d43777aa5c871b744c9e8c19a572a917')
    version('0.13', sha256='959d37d0a7e7e5b4d5e6c0334aaaeef1b463e855fa8e807042f662c993ed60b1')
    version('0.12', sha256='b757b354b355e866bd6d42da53b0160442f3b7f663a19ba113da1ffc1a76176e')
    version('0.11', sha256='7cfa6a7eaaeb7fd11ecfbe43a172a36c8cde200601d6cd3b309d7a0acf752f3c')
    version('0.10', sha256='58b4b5507d4db5baca315b1bed2b728981755d755b91ef63bd0b6dfaf320f46b')
    version('0.9', sha256='2d7bd9ea2f1e04136050f210884445a9e3dcb96c992cf42ff9ea4b392f85f927')

    depends_on('cmake@3.10:', type='build')
    depends_on('boost@1.64:', type=('build', 'link'))

    # googletest is required only for test
    # GCC is also required only for test (Metall is a header-only library)
    # Hint: Use 'spack install --test=root metall' or 'spack install --test=all metall'
    # to run test (adds a call to 'make test' to the build)
    depends_on('googletest %gcc@8.1.0:', type=('test'))

    # TODO: replace this with an explicit list of components of Boost,
    # for instance depends_on('boost +filesystem')
    # See https://github.com/spack/spack/pull/22303 for reference
    depends_on(Boost.with_default_variants, type=('build', 'link'))

    def cmake_args(self):
        if self.run_tests:
            args = ['-DBUILD_TEST=ON', '-DSKIP_DOWNLOAD_GTEST=ON']
            return args
        else:
            args = ['-DINSTALL_HEADER_ONLY=ON']
            return args

    def setup_build_environment(self, env):
        # Configure the directories for test
        if self.run_tests:
            env.set(
                'METALL_TEST_DIR',
                join_path(self.build_directory, 'build_test')
            )

    # 'spack load metall' sets METALL_ROOT environmental variable
    def setup_run_environment(self, env):
        env.set('METALL_ROOT', self.prefix)
