# 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 *


class SdslLite(Package):
    """SDSL - Succinct Data Structure Library

       The Succinct Data Structure Library (SDSL) is a powerful and flexible
       C++11 library implementing succinct data structures."""

    homepage = "https://github.com/simongog/sdsl-lite"

    version('2.1.1', sha256='2f192977b47406ae8992292c7e841ef23d4656bf72f6140540bed53af68e06ed',
            expand=False)

    depends_on('cmake', type='build')
    depends_on('tar', type='build')

    def url_for_version(self, version):
        line = 'https://github.com/simongog/sdsl-lite/releases/download/v{0}/sdsl-lite-{0}.tar.gz.offline.install.gz'
        return line.format(version.dotted)

    def install(self, spec, prefix):
        # spack will fail to expand the archive on its own due to a link loop
        # expand it manually here and run the install helper

        tar = which('tar')
        tar('-xvf', self.stage.archive_file)

        with working_dir('sdsl-lite-{0}'.format(spec.version.dotted)):
            helper = Executable('./install.sh')
            helper(prefix)
