# Copyright 2013-2020 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 Cctools(AutotoolsPackage):
    """The Cooperative Computing Tools (cctools) enable large scale
       distributed computations to harness hundreds to thousands of
       machines from clusters, clouds, and grids.
    """

    homepage = "https://cctools.readthedocs.io"
    url      = "https://ccl.cse.nd.edu/software/files/cctools-7.1.5-source.tar.gz"

    version('7.1.7', sha256='63cbfabe52591d41a1b27040bf27700d2a11b2f30cb2e25132e0016fb1aade03')
    version('7.1.5', sha256='c01415fd47a1d9626b6c556e0dc0a6b0d3cd67224fa060cabd44ff78eede1d8a')
    version('7.1.3', sha256='b937878ab429dda31bc692e5d9ffb402b9eb44bb674c07a934bb769cee4165ba')
    version('7.1.2', sha256='ca871e9fe245d047d4c701271cf2b868e6e3a170e8834c1887157ed855985131')
    version('7.1.0', sha256='84748245db10ff26c0c0a7b9fd3ec20fbbb849dd4aadc5e8531fd1671abe7a81')
    version('7.0.18', sha256='5b6f3c87ae68dd247534a5c073eb68cb1a60176a7f04d82699fbc05e649a91c2')
    version('6.1.1', sha256='97f073350c970d6157f80891b3bf6d4f3eedb5f031fea386dc33e22f22b8af9d')

    depends_on('openssl')
    depends_on('perl+shared', type=('build', 'run'))
    depends_on('python', type=('build', 'run'))
    depends_on('readline')
    depends_on('gettext')  # Corrects python linking of -lintl flag.
    depends_on('swig')
    # depends_on('xrootd')
    depends_on('zlib')
    patch('arm.patch', when='target=aarch64:')
    patch('cctools_7.0.18.python.patch', when='@7.0.18')
    patch('cctools_6.1.1.python.patch', when='@6.1.1')

    # Generally SYS_foo is defined to __NR_foo (sys/syscall.h) which
    # is then defined to a syscall number (asm/unistd_64.h).  Certain
    # CentOS systems have SYS_memfd_create defined to
    # __NR_memfd_create but are missing the second definition.
    # This is a belt and suspenders solution to the problem.
    def patch(self):
        before = '#if defined(__linux__) && defined(SYS_memfd_create)'
        after = '#if defined(__linux__) && defined(SYS_memfd_create) && defined(__NR_memfd_create)'  # noqa: E501
        f = 'dttools/src/memfdexe.c'
        kwargs = {'ignore_absent': False, 'backup': True, 'string': True}
        filter_file(before, after, f, **kwargs)
        if self.spec.satisfies('%fj'):
            makefiles = ['chirp/src/Makefile', 'grow/src/Makefile']
            for m in makefiles:
                filter_file('-fstack-protector-all', '', m)

    def configure_args(self):
        args = []

        # make sure we do not pick a python outside spack:
        if self.spec.satisfies('@6.1.1'):
            if self.spec.satisfies('^python@3:'):
                args.extend([
                    '--with-python3-path', self.spec['python'].prefix,
                    '--with-python-path', 'no'
                ])
            elif self.spec.satisfies('^python@:2.9'):
                args.extend([
                    '--with-python-path', self.spec['python'].prefix,
                    '--with-python3-path', 'no'
                ])
            else:
                args.extend([
                    '--with-python-path', 'no',
                    '--with-python3-path', 'no'
                ])
        else:
            # versions 7 and above, where --with-python-path recognized the
            # python version:
            if self.spec.satisfies('^python@3:'):
                args.extend([
                    '--with-python-path', self.spec['python'].prefix,
                    '--with-python2-path', 'no'
                ])
            elif self.spec.satisfies('^python@:2.9'):
                args.extend([
                    '--with-python-path', self.spec['python'].prefix,
                    '--with-python3-path', 'no'
                ])
            else:
                args.extend([
                    '--with-python2-path', 'no',
                    '--with-python3-path', 'no'
                ])

        # disable these bits
        for p in ['mysql', 'xrootd']:
            args.append('--with-{0}-path=no'.format(p))

        # point these bits at the Spack installations
        for p in ['openssl', 'perl', 'readline', 'swig', 'zlib']:
            args.append('--with-{0}-path={1}'.format(p, self.spec[p].prefix))

        return args
