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# 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 os

from spack import *


class PySip(PythonPackage):
    """A Python bindings generator for C/C++ libraries."""

    homepage = "https://www.riverbankcomputing.com/software/sip"
    pypi = "sip/sip-6.4.0.tar.gz"

    version('6.4.0', sha256='42ec368520b8da4a0987218510b1b520b4981e4405086c1be384733affc2bcb0')
    version('5.5.0', sha256='5d024c419b30fea8a6de8c71a560c7ab0bc3c221fbfb14d55a5b865bd58eaac5')
    version('4.19.21', sha256='3bfd58e875a87471c00e008f25a01d8312885aa01efc4f688e5cac861c8676e4')
    version('4.19.20', sha256='475f85277a6601c406ade508b6c935b9f2a170c16fd3ae9dd4cdee7a4f7f340d')
    version('4.19.19', sha256='348cd6229b095a3090e851555814f5147bffcb601cec891f1038eb6b38c9d856')
    version('4.19.18', sha256='e274a8b9424047c094a40a8e70fc5e596c191cb8820472846d7bf739e461b2e8')
    version('4.19.15', sha256='02bff1ac89253e12cdf1406ad39f841d0e264b0d96a7de13dfe9e29740df2053')
    version('4.19.13', sha256='92193fcf990503bf29f03e290efc4ee1812d556efc18acf5c8b88c090177a630')

    variant('module', default='sip', when='@:4', description='Name of private SIP module',
            values=str, multi=False)

    depends_on('python@3.6:', when='@6:', type=('build', 'run'))
    depends_on('python@3.5.1:', when='@5:', type=('build', 'run'))
    depends_on('py-packaging', when='@5:', type='build')
    depends_on('py-setuptools@30.3:', when='@5:', type='build')
    depends_on('py-toml', when='@5:', type='build')
    depends_on('flex', when='@:4', type='build')
    depends_on('bison', when='@:4', type='build')

    # needed for @:4
    phases = ['configure', 'build', 'install']

    def url_for_version(self, version):
        if version < Version('5.0.0'):
            return "https://www.riverbankcomputing.com/hg/sip/archive/{0}.tar.gz".format(version.dotted)
        return super(PySip, self).url_for_version(version)

    @run_before('configure')
    def prepare(self):
        if self.spec.satisfies('@:4') and not os.path.exists('configure.py'):
            python('build.py', 'prepare')

    def configure(self, spec, prefix):
        if self.spec.satisfies('@:4'):
            args = [
                '--sip-module={0}'.format(spec.variants['module'].value),
                '--bindir={0}'.format(prefix.bin),
                '--destdir={0}'.format(python_platlib),
                '--incdir={0}'.format(spec['python'].package.include),
                '--sipdir={0}'.format(prefix.share.sip),
                '--stubsdir={0}'.format(python_platlib),
            ]

            python('configure.py', *args)

    @when('@5:')
    def build(self, spec, prefix):
        pass

    @when('@:4')
    def build(self, spec, prefix):
        make()

    @when('@:4')
    def install(self, spec, prefix):
        make('install')

    @run_after('install')
    def extend_path_setup(self):
        if self.spec.satisfies('@:4'):
            # See github issue #14121 and PR #15297
            module = self.spec.variants['module'].value
            if module != 'sip':
                module = module.split('.')[0]
                with working_dir(python_platlib):
                    with open(os.path.join(module, '__init__.py'), 'w') as f:
                        f.write('from pkgutil import extend_path\n')
                        f.write('__path__ = extend_path(__path__, __name__)\n')