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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 Xeus(CMakePackage):
    """QuantStack C++ implementation of Jupyter kernel protocol"""

    homepage = "https://xeus.readthedocs.io/en/latest/"
    url      = "https://github.com/QuantStack/xeus/archive/0.14.1.tar.gz"
    git      = "https://github.com/QuantStack/xeus.git"

    version('develop', branch='master')
    version('0.15.0', sha256='bc99235b24d5757dc129f3ed531501fb0d0667913927ed39ee24281952649183')
    version('0.14.1', sha256='a6815845d4522ec279f142d3b4e92ef52cd80847b512146a65f256a77e058cfe')

    variant('examples', default=False, description="Build examples")

    conflicts('%gcc@:4.8')
    conflicts('%clang@:3.6')
    conflicts('%intel@:17')

    depends_on('libzmq@4.2.5:-libsodium')
    depends_on('cppzmq@4.3.0:')
    depends_on('cryptopp@7.0.0:')
    depends_on('xtl@0.4.0:')
    depends_on('nlohmann-json@3.2.0', when='@develop,0.15.0:')
    depends_on('nlohmann-json@3.1.1', when='@0.14.1')
    depends_on('uuid')

    # finds cryptopp not built with cmake, removes c++17 attribute
    # in check_cxx_source_compiles
    patch('cmake_find_cryptopp_and_check_cxx_compatibility.patch')

    def cmake_args(self):
        args = [
            '-DBUILD_EXAMPLES:BOOL=%s' % (
                'ON' if '+examples' in self.spec else 'OFF')
        ]

        return args