# 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)

import re

from spack import *


class Tar(AutotoolsPackage, GNUMirrorPackage):
    """GNU Tar provides the ability to create tar archives, as well as various
    other kinds of manipulation."""

    homepage = "https://www.gnu.org/software/tar/"
    gnu_mirror_path = "tar/tar-1.32.tar.gz"

    executables = [r'^tar$']

    version('1.34', sha256='03d908cf5768cfe6b7ad588c921c6ed21acabfb2b79b788d1330453507647aed')
    version('1.32', sha256='b59549594d91d84ee00c99cf2541a3330fed3a42c440503326dab767f2fbb96c')
    version('1.31', sha256='b471be6cb68fd13c4878297d856aebd50551646f4e3074906b1a74549c40d5a2')
    version('1.30', sha256='4725cc2c2f5a274b12b39d1f78b3545ec9ebb06a6e48e8845e1995ac8513b088')
    version('1.29', sha256='cae466e6e58c7292355e7080248f244db3a4cf755f33f4fa25ca7f9a7ed09af0')
    version('1.28', sha256='6a6b65bac00a127a508533c604d5bf1a3d40f82707d56f20cefd38a05e8237de')

    depends_on('iconv')

    patch('tar-pgi.patch',    when='@1.29')
    patch('config-pgi.patch', when='@:1.29')
    patch('se-selinux.patch', when='@:1.29')
    patch('argp-pgi.patch',   when='@:1.29')
    patch('gnutar-configure-xattrs.patch', when='@1.28')
    # The NVIDIA compilers do not currently support some GNU builtins.
    # Detect this case and use the fallback path.
    patch('nvhpc-1.30.patch', when='@1.30:1.32 %nvhpc')
    patch('nvhpc-1.34.patch', when='@1.34 %nvhpc')
    # Workaround bug where __LONG_WIDTH__ is not defined
    patch('nvhpc-long-width.patch', when='@1.34 %nvhpc')

    @classmethod
    def determine_version(cls, exe):
        output = Executable(exe)('--version', output=str, error=str)
        match = re.search(r'tar \(GNU tar\) (\S+)', output)
        return match.group(1) if match else None

    def configure_args(self):
        return [
            '--with-libiconv-prefix={0}'.format(self.spec['iconv'].prefix),
        ]
