view contrib/python-zstandard/setup.py @ 49280:311fcc5a65f6

thirdparty: remove Python 2-specific selectors2 copy

The selectors module was added in Python 3.4. Because we require Python 3.6, it
will always be available. Therefore the selectors2 module is not imported.

I’ve verified that the selectors2-specific workaround in commandserver.py is not
necessary with the selectors module from the standard library. It returns an
empty list if timeout was exceeded.

The pytype directive was needed to silence the following error:

File "/tmp/mercurial-ci/mercurial/worker.py", line 299, in _posixworker: No attribute 'close' on int [attribute-error]
  In Union[_typeshed.HasFileno, int]
File "/tmp/mercurial-ci/mercurial/worker.py", line 299, in _posixworker: No attribute 'close' on _typeshed.HasFileno [attribute-error]
  In Union[_typeshed.HasFileno, int]

#!/usr/bin/env python
# Copyright (c) 2016-present, Gregory Szorc
# All rights reserved.
#
# This software may be modified and distributed under the terms
# of the BSD license. See the LICENSE file for details.


from distutils.version import LooseVersion
import os
import sys
from setuptools import setup

# Need change in 1.10 for ffi.from_buffer() to handle all buffer types
# (like memoryview).
# Need feature in 1.11 for ffi.gc() to declare size of objects so we avoid
# garbage collection pitfalls.
MINIMUM_CFFI_VERSION = "1.11"

try:
    import cffi

    # PyPy (and possibly other distros) have CFFI distributed as part of
    # them. The install_requires for CFFI below won't work. We need to sniff
    # out the CFFI version here and reject CFFI if it is too old.
    cffi_version = LooseVersion(cffi.__version__)
    if cffi_version < LooseVersion(MINIMUM_CFFI_VERSION):
        print(
            "CFFI 1.11 or newer required (%s found); "
            "not building CFFI backend" % cffi_version,
            file=sys.stderr,
        )
        cffi = None

except ImportError:
    cffi = None

import setup_zstd

SUPPORT_LEGACY = False
SYSTEM_ZSTD = False
WARNINGS_AS_ERRORS = False

if os.environ.get("ZSTD_WARNINGS_AS_ERRORS", ""):
    WARNINGS_AS_ERRORS = True

if "--legacy" in sys.argv:
    SUPPORT_LEGACY = True
    sys.argv.remove("--legacy")

if "--system-zstd" in sys.argv:
    SYSTEM_ZSTD = True
    sys.argv.remove("--system-zstd")

if "--warnings-as-errors" in sys.argv:
    WARNINGS_AS_ERRORS = True
    sys.argv.remove("--warning-as-errors")

# Code for obtaining the Extension instance is in its own module to
# facilitate reuse in other projects.
extensions = [
    setup_zstd.get_c_extension(
        name="zstd",
        support_legacy=SUPPORT_LEGACY,
        system_zstd=SYSTEM_ZSTD,
        warnings_as_errors=WARNINGS_AS_ERRORS,
    ),
]

install_requires = []

if cffi:
    import make_cffi

    extensions.append(make_cffi.ffi.distutils_extension())
    install_requires.append("cffi>=%s" % MINIMUM_CFFI_VERSION)

version = None

with open("c-ext/python-zstandard.h", "r") as fh:
    for line in fh:
        if not line.startswith("#define PYTHON_ZSTANDARD_VERSION"):
            continue

        version = line.split()[2][1:-1]
        break

if not version:
    raise Exception(
        "could not resolve package version; " "this should never happen"
    )

setup(
    name="zstandard",
    version=version,
    description="Zstandard bindings for Python",
    long_description=open("README.rst", "r").read(),
    url="https://github.com/indygreg/python-zstandard",
    author="Gregory Szorc",
    author_email="[e-mail]",
    license="BSD",
    classifiers=[
        "Development Status :: 4 - Beta",
        "Intended Audience :: Developers",
        "License :: OSI Approved :: BSD License",
        "Programming Language :: C",
        "Programming Language :: Python :: 2.7",
        "Programming Language :: Python :: 3.5",
        "Programming Language :: Python :: 3.6",
        "Programming Language :: Python :: 3.7",
        "Programming Language :: Python :: 3.8",
    ],
    keywords="zstandard zstd compression",
    packages=["zstandard"],
    ext_modules=extensions,
    test_suite="tests",
    install_requires=install_requires,
    tests_require=["hypothesis"],
)