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# -*- test-case-name: twisted.python.test.test_setup -*-
# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.
# pylint: disable=I0011,C0103,C9302,W9401,W9402
"""
Setuptools convenience functionality.
This file must not import anything from Twisted, as it is loaded by C{exec} in
C{setup.py}. If you need compatibility functions for this code, duplicate them
here.
@var _EXTRA_OPTIONS: These are the actual package names and versions that will
be used by C{extras_require}. This is not passed to setup directly so that
combinations of the packages can be created without the need to copy
package names multiple times.
@var _EXTRAS_REQUIRE: C{extras_require} is a dictionary of items that can be
passed to setup.py to install optional dependencies. For example, to
install the optional dev dependencies one would type::
pip install -e ".[dev]"
This has been supported by setuptools since 0.5a4.
@var _PLATFORM_INDEPENDENT: A list of all optional cross-platform dependencies,
as setuptools version specifiers, used to populate L{_EXTRAS_REQUIRE}.
@var _EXTENSIONS: The list of L{ConditionalExtension} used by the setup
process.
@var notPortedModules: Modules that are not yet ported to Python 3.
"""
import io
import os
import platform
import re
import sys
from distutils.command import build_ext
from distutils.errors import CompileError
from setuptools import Extension, find_packages
from setuptools.command.build_py import build_py
# Do not replace this with t.p.compat imports, this file must not import
# from Twisted. See the docstring.
if sys.version_info < (3, 0):
_PY3 = False
else:
_PY3 = True
STATIC_PACKAGE_METADATA = dict(
name="Twisted",
description="An asynchronous networking framework written in Python",
author="Twisted Matrix Laboratories",
author_email="twisted-python@twistedmatrix.com",
maintainer="Glyph Lefkowitz",
maintainer_email="glyph@twistedmatrix.com",
url="https://twistedmatrix.com/",
project_urls={
'Documentation': 'https://twistedmatrix.com/documents/current/',
'Source': 'https://github.com/twisted/twisted',
'Issues': 'https://twistedmatrix.com/trac/report',
},
license="MIT",
classifiers=[
"Programming Language :: Python :: 2.7",
"Programming Language :: Python :: 3",
"Programming Language :: Python :: 3.5",
"Programming Language :: Python :: 3.6",
"Programming Language :: Python :: 3.7",
],
python_requires='>=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*',
)
_dev = [
'pyflakes >= 1.0.0',
'twisted-dev-tools >= 0.0.2',
'python-subunit',
'sphinx >= 1.3.1',
'towncrier >= 17.4.0'
]
if not _PY3:
# These modules do not yet work on Python 3.
_dev += [
'twistedchecker >= 0.4.0',
'pydoctor >= 16.2.0',
]
_EXTRA_OPTIONS = dict(
dev=_dev,
tls=[
'pyopenssl >= 16.0.0',
# service_identity 18.1.0 added support for validating IP addresses in
# certificate subjectAltNames
'service_identity >= 18.1.0',
# idna 2.3 introduced some changes that break a few things. Avoid it.
# The problems were fixed in 2.4.
'idna >= 0.6, != 2.3',
],
conch=[
'pyasn1',
'cryptography >= 2.5',
'appdirs >= 1.4.0',
'bcrypt >= 3.0.0',
],
soap=['soappy'],
serial=['pyserial >= 3.0',
'pywin32 != 226; platform_system == "Windows"'],
macos=['pyobjc-core',
'pyobjc-framework-CFNetwork',
'pyobjc-framework-Cocoa'],
windows=['pywin32 != 226'],
http2=['h2 >= 3.0, < 4.0',
'priority >= 1.1.0, < 2.0'],
)
_PLATFORM_INDEPENDENT = (
_EXTRA_OPTIONS['tls'] +
_EXTRA_OPTIONS['conch'] +
_EXTRA_OPTIONS['soap'] +
_EXTRA_OPTIONS['serial'] +
_EXTRA_OPTIONS['http2']
)
_EXTRAS_REQUIRE = {
'dev': _EXTRA_OPTIONS['dev'],
'tls': _EXTRA_OPTIONS['tls'],
'conch': _EXTRA_OPTIONS['conch'],
'soap': _EXTRA_OPTIONS['soap'],
'serial': _EXTRA_OPTIONS['serial'],
'http2': _EXTRA_OPTIONS['http2'],
'all_non_platform': _PLATFORM_INDEPENDENT,
'macos_platform': (
_EXTRA_OPTIONS['macos'] + _PLATFORM_INDEPENDENT
),
'windows_platform': (
_EXTRA_OPTIONS['windows'] + _PLATFORM_INDEPENDENT
),
}
_EXTRAS_REQUIRE['osx_platform'] = _EXTRAS_REQUIRE['macos_platform']
# Scripts provided by Twisted on Python 2 and 3.
_CONSOLE_SCRIPTS = [
"ckeygen = twisted.conch.scripts.ckeygen:run",
"cftp = twisted.conch.scripts.cftp:run",
"conch = twisted.conch.scripts.conch:run",
"mailmail = twisted.mail.scripts.mailmail:run",
"pyhtmlizer = twisted.scripts.htmlizer:run",
"tkconch = twisted.conch.scripts.tkconch:run",
"trial = twisted.scripts.trial:run",
"twist = twisted.application.twist._twist:Twist.main",
"twistd = twisted.scripts.twistd:run",
]
class ConditionalExtension(Extension, object):
"""
An extension module that will only be compiled if certain conditions are
met.
@param condition: A callable of one argument which returns True or False to
indicate whether the extension should be built. The argument is an
instance of L{build_ext_twisted}, which has useful methods for checking
things about the platform.
"""
def __init__(self, *args, **kwargs):
self.condition = kwargs.pop("condition", lambda builder: True)
Extension.__init__(self, *args, **kwargs)
# The C extensions used for Twisted.
_EXTENSIONS = [
ConditionalExtension(
"twisted.test.raiser",
sources=["src/twisted/test/raiser.c"],
condition=lambda _: _isCPython),
ConditionalExtension(
"twisted.internet.iocpreactor.iocpsupport",
sources=[
"src/twisted/internet/iocpreactor/iocpsupport/iocpsupport.c",
"src/twisted/internet/iocpreactor/iocpsupport/winsock_pointers.c",
],
libraries=["ws2_32"],
condition=lambda _: _isCPython and sys.platform == "win32"),
ConditionalExtension(
"twisted.python._sendmsg",
sources=["src/twisted/python/_sendmsg.c"],
condition=lambda _: not _PY3 and sys.platform != "win32"),
]
def _longDescriptionArgsFromReadme(readme):
"""
Generate a PyPI long description from the readme.
@param readme: Path to the readme reStructuredText file.
@type readme: C{str}
@return: Keyword arguments to be passed to C{setuptools.setup()}.
@rtype: C{str}
"""
with io.open(readme, encoding='utf-8') as f:
readmeRst = f.read()
# Munge links of the form `NEWS <NEWS.rst>`_ to point at the appropriate
# location on GitHub so that they function when the long description is
# displayed on PyPI.
longDesc = re.sub(
r'`([^`]+)\s+<(?!https?://)([^>]+)>`_',
r'`\1 <https://github.com/twisted/twisted/blob/trunk/\2>`_',
readmeRst,
flags=re.I,
)
return {
'long_description': longDesc,
'long_description_content_type': 'text/x-rst',
}
def getSetupArgs(extensions=_EXTENSIONS, readme='README.rst'):
"""
Generate arguments for C{setuptools.setup()}
@param extensions: C extension modules to maybe build. This argument is to
be used for testing.
@type extensions: C{list} of C{ConditionalExtension}
@param readme: Path to the readme reStructuredText file. This argument is
to be used for testing.
@type readme: C{str}
@return: The keyword arguments to be used by the setup method.
@rtype: L{dict}
"""
arguments = STATIC_PACKAGE_METADATA.copy()
if readme:
arguments.update(_longDescriptionArgsFromReadme(readme))
# This is a workaround for distutils behavior; ext_modules isn't
# actually used by our custom builder. distutils deep-down checks
# to see if there are any ext_modules defined before invoking
# the build_ext command. We need to trigger build_ext regardless
# because it is the thing that does the conditional checks to see
# if it should build any extensions. The reason we have to delay
# the conditional checks until then is that the compiler objects
# are not yet set up when this code is executed.
arguments["ext_modules"] = extensions
# Use custome class to build the extensions.
class my_build_ext(build_ext_twisted):
conditionalExtensions = extensions
command_classes = {
'build_ext': my_build_ext,
}
if sys.version_info[0] >= 3:
command_classes['build_py'] = BuildPy3
requirements = [
"zope.interface >= 4.4.2",
"constantly >= 15.1",
"incremental >= 16.10.1",
"Automat >= 0.3.0",
"hyperlink >= 17.1.1",
# PyHamcrest 1.10.0 is Python 3 only, but lacks package metadata that
# says so. This condition can be dropped when Twisted drops support for
# Python 2.7.
"PyHamcrest >= 1.9.0, != 1.10.0",
"attrs >= 19.2.0",
]
arguments.update(dict(
packages=find_packages("src"),
use_incremental=True,
setup_requires=["incremental >= 16.10.1"],
install_requires=requirements,
entry_points={
'console_scripts': _CONSOLE_SCRIPTS
},
cmdclass=command_classes,
include_package_data=True,
exclude_package_data={
"": ["*.c", "*.h", "*.pxi", "*.pyx", "build.bat"],
},
zip_safe=False,
extras_require=_EXTRAS_REQUIRE,
package_dir={"": "src"},
))
return arguments
class BuildPy3(build_py, object):
"""
A version of build_py that doesn't install the modules that aren't yet
ported to Python 3.
"""
def find_package_modules(self, package, package_dir):
modules = [
module for module
in build_py.find_package_modules(self, package, package_dir)
if ".".join([module[0], module[1]]) not in notPortedModules]
return modules
## Helpers and distutil tweaks
class build_ext_twisted(build_ext.build_ext, object):
"""
Allow subclasses to easily detect and customize Extensions to
build at install-time.
"""
def prepare_extensions(self):
"""
Prepare the C{self.extensions} attribute (used by
L{build_ext.build_ext}) by checking which extensions in
I{conditionalExtensions} should be built. In addition, if we are
building on NT, define the WIN32 macro to 1.
"""
# always define WIN32 under Windows
if os.name == 'nt':
self.define_macros = [("WIN32", 1)]
else:
self.define_macros = []
# On Solaris 10, we need to define the _XOPEN_SOURCE and
# _XOPEN_SOURCE_EXTENDED macros to build in order to gain access to
# the msg_control, msg_controllen, and msg_flags members in
# sendmsg.c. (according to
# https://stackoverflow.com/questions/1034587). See the documentation
# of X/Open CAE in the standards(5) man page of Solaris.
if sys.platform.startswith('sunos'):
self.define_macros.append(('_XOPEN_SOURCE', 1))
self.define_macros.append(('_XOPEN_SOURCE_EXTENDED', 1))
self.extensions = [
x for x in self.conditionalExtensions if x.condition(self)
]
for ext in self.extensions:
ext.define_macros.extend(self.define_macros)
def build_extensions(self):
"""
Check to see which extension modules to build and then build them.
"""
self.prepare_extensions()
build_ext.build_ext.build_extensions(self)
def _remove_conftest(self):
for filename in ("conftest.c", "conftest.o", "conftest.obj"):
try:
os.unlink(filename)
except EnvironmentError:
pass
def _compile_helper(self, content):
conftest = open("conftest.c", "w")
try:
with conftest:
conftest.write(content)
try:
self.compiler.compile(["conftest.c"], output_dir='')
except CompileError:
return False
return True
finally:
self._remove_conftest()
def _check_header(self, header_name):
"""
Check if the given header can be included by trying to compile a file
that contains only an #include line.
"""
self.compiler.announce("checking for {} ...".format(header_name), 0)
return self._compile_helper("#include <{}>\n".format(header_name))
def _checkCPython(sys=sys, platform=platform):
"""
Checks if this implementation is CPython.
This uses C{platform.python_implementation}.
This takes C{sys} and C{platform} kwargs that by default use the real
modules. You shouldn't care about these -- they are for testing purposes
only.
@return: C{False} if the implementation is definitely not CPython, C{True}
otherwise.
"""
return platform.python_implementation() == "CPython"
_isCPython = _checkCPython()
notPortedModules = [
"twisted.mail.alias",
"twisted.mail.bounce",
"twisted.mail.mail",
"twisted.mail.maildir",
"twisted.mail.pb",
"twisted.mail.relaymanager",
"twisted.mail.scripts.__init__",
"twisted.mail.tap",
"twisted.mail.test.test_bounce",
"twisted.mail.test.test_mail",
"twisted.mail.test.test_options",
"twisted.mail.test.test_scripts",
"twisted.news.__init__",
"twisted.news.database",
"twisted.news.news",
"twisted.news.nntp",
"twisted.news.tap",
"twisted.news.test.__init__",
"twisted.news.test.test_database",
"twisted.news.test.test_news",
"twisted.news.test.test_nntp",
"twisted.plugins.twisted_mail",
"twisted.plugins.twisted_news",
"twisted.protocols.shoutcast",
"twisted.python._pydoctor",
"twisted.python.finalize",
"twisted.python.hook",
"twisted.python.test.cmodulepullpipe",
"twisted.python.test.test_pydoctor",
"twisted.python.test.test_win32",
"twisted.test.test_hook",
"twisted.web.soap",
"twisted.web.test.test_soap",
]