# Copyright 2013-2019 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 *
from shutil import copytree


class SpanLite(CMakePackage):
    """
    A single-file header-only version of a C++20-like span for C++98, C++11 and
    later
    """

    homepage = "https://github.com/martinmoene/span-lite"
    url      = "https://github.com/martinmoene/span-lite/archive/v0.3.0.tar.gz"

    version('0.5.0', sha256='405ae095bca3c63da28c72a3528369b9ba3996f1992f3ae90fcb01a9d8bdef38')
    version('0.4.0', sha256='973858839cc881f9457a874b9c39e16c3d4a798b1204258bb0ca997cd13d1a87')
    version('0.3.0', sha256='e083f368167fe632f866956edaa2c7a7d57a33ffb0d8def9b9f1a9daa47834bb')
    version('0.2.0', sha256='6e3305fe868442410a00962a39fc59ed494cecc4f99fe2aff187e33932f06e46')
    version('0.1.0', sha256='0a84b9369f86beba326e2160b683fd0922f416ce136437751a9ed70afcc67a1c')

    def cmake_args(self):
        return [
            "-DSPAN_LITE_EXPORT_PACKAGE=ON",
            "-DSPAN_LITE_OPT_BUILD_TESTS=%s"
            % ("ON" if self.run_tests else "OFF"),
            "-DSPAN_LITE_OPT_BUILD_EXAMPLES=OFF"
        ]

    # Pre-0.5.0 install was simply a copytree on the includes
    @when("@:0.4")
    def cmake(self, spec, prefix):
        pass

    @when("@:0.4")
    def build(self, spec, prefix):
        pass

    @when("@:0.4")
    def install(self, spec, prefix):
        copytree('include', prefix.include)

    @when("@:0.4")
    def check(self):
        pass
