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# Copyright 2013-2021 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 Vecgeom(CMakePackage, CudaPackage):
    """The vectorized geometry library for particle-detector simulation
    (toolkits)."""

    homepage = "https://gitlab.cern.ch/VecGeom/VecGeom"
    url = "https://gitlab.cern.ch/VecGeom/VecGeom/-/archive/v1.1.6/VecGeom-v1.1.6.tar.gz"
    git = "https://gitlab.cern.ch/VecGeom/VecGeom.git"

    tags = ['hep']

    maintainers = ['drbenmorgan', 'sethrj']

    version('master', branch='master')
    version('1.1.17', sha256='2e95429b795311a6986320d785bedcd9dace9f8e7b7f6bd778d23a4ff23e0424')
    version('1.1.16', sha256='2fa636993156d9d06750586e8a1ac1701ae2be62dea07964e2369698ae521d02')
    version('1.1.15', sha256='0ee9897eb12d8d560dc0c9e56e8fdb78d0111f651a984df24e983da035bd1c70')
    version('1.1.13', sha256='6bb364cc74bdab2e64e2fe132debd7f1e192da0a103f5149df7ab25b7c19a205')
    version('1.1.12', sha256='fec4495aac4a9d583f076551da61a68b956bba1dd1ebe1cd48c00ef95c962049')
    version('1.1.9', sha256='a90e11bf83724300d1d7206e5fe89a7915c4ec6aae881587f18e282ac0f6ee8e')
    version('1.1.8', sha256='9c42206d788ec4b791571882f5ea8d2c591c938abe61c21cc5ec37bfea6bf768')
    version('1.1.7', sha256='cc79a0baa783b21ecc399c4e7cca925ca340e6aeb96e3b2cad45c141557519bf')
    version('1.1.6', sha256='c4806a6b67d01b40074b8cc6865d78574a6a1c573be51696f2ecdf98b9cb954a')
    version('1.1.5', sha256='da674f3bbc75c30f56c1a2d251fa8930c899f27fa64b03a36569924030d87b95')
    version('1.1.3', sha256='ada09e8b6b2fa6c058290302b2cb5a6c2e644192aab1623c31d18c6a2f4c01c8')
    version('1.1.0', sha256='e9d1ef83ff591fe4f9ef744a4d3155a3dc7e90ddb6735b24f3afe4c2dc3f7064')
    version('1.0.1', sha256='1eae7ac9014c608e8d8db5568058b8c0fea1a1dc7a8f54157a3a1c997b6fd9eb')
    version('0.5.2', tag='v00.05.02',
            commit='a7e0828c915ff936a79e672d1dd84b087a323b51')
    version('0.3.rc', sha256='a87a9ea4ab126b59ff9c79182bc0911ead3d76dd197194742e2a35ccd341299d')

    _cxxstd_values = ('11', '14', '17')
    variant('cxxstd', default='11', values=_cxxstd_values, multi=False,
            description='Use the specified C++ standard when building')
    variant('gdml', default=True,
            description='Support native GDML geometry descriptions')
    variant('geant4', default=False,
            description='Support Geant4 geometry construction')
    variant('root', default=False,
            description='Support ROOT geometry construction')
    variant('shared', default=True,
            description='Build shared libraries')

    depends_on('veccore@0.5.2:', type=('build', 'link'), when='@1.1.0:')
    depends_on('veccore@0.4.2', type=('build', 'link'), when='@:1.0')
    depends_on('veccore+cuda', type=('build', 'link'), when='+cuda')

    conflicts('+cuda', when='@:1.1.5')

    # Fix missing CMAKE_CUDA_STANDARD
    patch('https://gitlab.cern.ch/VecGeom/VecGeom/-/commit/7094dd180ef694f2abb7463cafcedfb8b8ed30a1.diff',
          sha256='34f1a6899616e40bce33d80a38a9b409f819cbaab07b2e3be7f4ec4bedb52b29',
          when='@1.1.7 +cuda')

    for std in _cxxstd_values:
        depends_on('geant4 cxxstd=' + std, when='+geant4 cxxstd=' + std)
        depends_on('root cxxstd=' + std, when='+root cxxstd=' + std)
        depends_on('veccore cxxstd=' + std, when='cxxstd=' + std)
        depends_on('xerces-c cxxstd=' + std, when='+gdml cxxstd=' + std)

    def cmake_args(self):
        # Possible target options are from the main CMakeLists.txt, assuming
        # "best" is last
        target = self.spec.target
        vecgeom_arch = "sse2 sse3 ssse3 sse4.1 sse4.2 avx avx2".split()
        for feature in reversed(vecgeom_arch):
            if feature.replace('.', '_') in target:
                target_instructions = feature
                break
        else:
            # No features available (could be 'generic' arch)
            target_instructions = 'empty'

        define = CMakePackage.define
        options = [
            define('BACKEND', 'Scalar'),
            define('BUILTIN_VECCORE', False),
            define('NO_SPECIALIZATION', True),
            define('VECGEOM_VECTOR', target_instructions),
            self.define_from_variant('BUILD_SHARED_LIBS', 'shared'),
            self.define_from_variant('CMAKE_CXX_STANDARD', 'cxxstd'),
            self.define_from_variant('CUDA'),
            self.define_from_variant('GDML'),
            self.define_from_variant('GEANT4'),
            self.define_from_variant('ROOT'),
        ]

        # Set testing flags
        build_tests = self.run_tests
        options.extend([
            define('BUILD_TESTING', build_tests),
            define('CTEST', build_tests),
            define('GDMLTESTING', build_tests and '+gdml' in self.spec),
        ])

        if '+cuda' in self.spec:
            arch = self.spec.variants['cuda_arch'].value
            if len(arch) != 1 or arch[0] == 'none':
                raise InstallError("Exactly one cuda_arch must be specified")
            options.append(define('CUDA_ARCH', arch[0]))

        if self.spec.satisfies("@:0.5.2"):
            options.extend([
                define('USOLIDS', True),
                define('USOLIDS_VECGEOM', True),
            ])

        return options