# Copyright 2013-2022 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)
import glob
import os

from spack import *


class Nasm(Package):
    """NASM (Netwide Assembler) is an 80x86 assembler designed for
    portability and modularity. It includes a disassembler as well."""

    homepage = "https://www.nasm.us"
    url      = "https://www.nasm.us/pub/nasm/releasebuilds/2.14.02/nasm-2.14.02.tar.gz"
    list_url = "https://www.nasm.us/pub/nasm/releasebuilds"
    list_depth = 1

    version('2.15.05', sha256='9182a118244b058651c576baa9d0366ee05983c4d4ae1d9ddd3236a9f2304997')
    version('2.14.02', sha256='b34bae344a3f2ed93b2ca7bf25f1ed3fb12da89eeda6096e3551fd66adeae9fc')
    version('2.13.03', sha256='23e1b679d64024863e2991e5c166e19309f0fe58a9765622b35bd31be5b2cc99')
    version('2.11.06', sha256='3a72476f3cb45294d303f4d34f20961b15323ac24e84eb41bc130714979123bb')

    # Fix compilation with GCC 8
    # https://bugzilla.nasm.us/show_bug.cgi?id=3392461
    patch('https://src.fedoraproject.org/rpms/nasm/raw/0cc3eb244bd971df81a7f02bc12c5ec259e1a5d6/f/0001-Remove-invalid-pure_func-qualifiers.patch', level=1, sha256='ac9f315d204afa6b99ceefa1fe46d4eed2b8a23c7315d32d33c0f378d930e950', when='@2.13.03 %gcc@8:')

    patch('msvc.mak.patch', when='@2.15.05 platform=windows')

    conflicts('%intel@:14', when='@2.14:',
              msg="Intel 14 has immature C11 support")

    depends_on('perl', when='platform=windows')

    def patch(self):
        # Remove flags not recognized by the NVIDIA compiler
        if self.spec.satisfies('%nvhpc@:20.11'):
            filter_file(r'CFLAGS="\$pa_add_cflags__old_cflags -Werror=.*"',
                        'CFLAGS="$pa_add_cflags__old_cflags"', 'configure')
            filter_file(r'CFLAGS="\$pa_add_flags__old_flags -Werror=.*"',
                        'CFLAGS="$pa_add_flags__old_flags"', 'configure')

    def install(self, spec, prefix):
        with working_dir(self.stage.source_path, create=True):
            configure(*['--prefix={0}'.format(self.prefix)])
            make('V=1')
            make('install')

    @when('platform=windows')
    def install(self, spec, prefix):
        with working_dir(self.stage.source_path, create=True):
            # build NASM with nmake
            touch('asm\\warnings.time')
            nmake('/f', 'Mkfiles\\msvc.mak')

            # install manually because the nmake file defines
            # no install target
            # This install tree schema mimics the pattern established
            # by the NASM windows installer
            build_dir = self.stage.source_path
            rdoff_dir = os.path.join(build_dir, 'rdoff')
            binaries = glob.glob(os.path.join(build_dir, "*.exe"))
            rdoff = glob.glob(os.path.join(rdoff_dir, "*.exe"))
            rdoff.extend(glob.glob(os.path.join(rdoff_dir, "*.lib")))

            for file in binaries:
                install(file, self.prefix)

            os.makedirs(self.prefix.rdoff)

            for file in rdoff:
                install(file, self.prefix.rdoff)