# 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 Cdhit(MakefilePackage):
    """CD-HIT is a very widely used program for clustering and comparing
       protein or nucleotide sequences."""

    homepage = "http://cd-hit.org/"
    url      = "https://github.com/weizhongli/cdhit/archive/V4.6.8.tar.gz"

    version('4.8.1', sha256='f8bc3cdd7aebb432fcd35eed0093e7a6413f1e36bbd2a837ebc06e57cdb20b70')
    version('4.6.8', sha256='37d685e4aa849314401805fe4d4db707e1d06070368475e313d6f3cb8fb65949')

    variant('openmp', default=True, description='Compile with multi-threading support')
    variant('zlib', default=True, description='Compile with zlib')

    depends_on('perl', type=('build', 'run'))
    depends_on('zlib', when='+zlib', type='link')

    def build(self, spec, prefix):
        mkdirp(prefix.bin)
        make_args = []
        if '~openmp' in spec:
            make_args.append('openmp=no')
        if '~zlib' in spec:
            make_args.append('zlib=no')
        make(*make_args)

    def setup_build_environment(self, env):
        env.set('PREFIX', self.prefix.bin)
