asyncpg/setup.py at get_buffer · MagicStack/asyncpg · GitHub

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# <see AUTHORS file>

# This module is part of asyncpg and is released under

# the Apache 2.0 License: http://www.apache.org/licenses/LICENSE-2.0

import os

import os.path

import platform

import re

import sys

import setuptools

from setuptools.command import build_ext as _build_ext

if sys.version_info < (3, 5):

raise RuntimeError('asyncpg requires Python 3.5 or greater')

CFLAGS = ['-O2']

LDFLAGS = []

if platform.uname().system != 'Windows':

CFLAGS.extend(['-fsigned-char', '-Wall', '-Wsign-compare', '-Wconversion'])

class build_ext(_build_ext.build_ext):

user_options = _build_ext.build_ext.user_options + [

('cython-always', None,

'run cythonize() even if .c files are present'),

('cython-annotate', None,

'Produce a colorized HTML version of the Cython source.'),

('cython-directives=', None,

'Cythion compiler directives'),

]

def initialize_options(self):

# initialize_options() may be called multiple times on the

# same command object, so make sure not to override previously

# set options.

if getattr(self, '_initialized', False):

return

super(build_ext, self).initialize_options()

self.cython_always = False

self.cython_annotate = None

self.cython_directives = None

def finalize_options(self):

# finalize_options() may be called multiple times on the

# same command object, so make sure not to override previously

# set options.

if getattr(self, '_initialized', False):

return

need_cythonize = self.cython_always

cfiles = {}

for extension in self.distribution.ext_modules:

for i, sfile in enumerate(extension.sources):

if sfile.endswith('.pyx'):

prefix, ext = os.path.splitext(sfile)

cfile = prefix + '.c'

if os.path.exists(cfile) and not self.cython_always:

extension.sources[i] = cfile

else:

if os.path.exists(cfile):

cfiles[cfile] = os.path.getmtime(cfile)

else:

cfiles[cfile] = 0

need_cythonize = True

if need_cythonize:

try:

import Cython

except ImportError:

raise RuntimeError(

'please install Cython to compile asyncpg from source')

if Cython.__version__ < '0.24':

raise RuntimeError(

'asyncpg requires Cython version 0.24 or greater')

from Cython.Build import cythonize

directives = {}

if self.cython_directives:

for directive in self.cython_directives.split(','):

k, _, v = directive.partition('=')

if v.lower() == 'false':

v = False

if v.lower() == 'true':

v = True

directives[k] = v

self.distribution.ext_modules[:] = cythonize(

self.distribution.ext_modules,

compiler_directives=directives,

annotate=self.cython_annotate)

for cfile, timestamp in cfiles.items():

if os.path.getmtime(cfile) != timestamp:

# The file was recompiled, patch

self._patch_cfile(cfile)

super(build_ext, self).finalize_options()

def _patch_cfile(self, cfile):

# Script to patch Cython 'async def' coroutines to have a 'tp_iter'

# slot, which makes them compatible with 'yield from' without the

# `asyncio.coroutine` decorator.

with open(cfile, 'rt') as f:

src = f.read()

src = re.sub(

r'''

\s* offsetof\(__pyx_CoroutineObject,\s*gi_weakreflist\),

\s* 0,

\s* __pyx_Coroutine_methods,

\s* __pyx_Coroutine_memberlist,

\s* __pyx_Coroutine_getsets,

''',

r'''

offsetof(__pyx_CoroutineObject, gi_weakreflist),

__Pyx_Coroutine_await, /* tp_iter */

(iternextfunc) __Pyx_Generator_Next, /* tp_iternext */

__pyx_Coroutine_methods,

__pyx_Coroutine_memberlist,

__pyx_Coroutine_getsets,

''',

src, flags=re.X)

# Fix a segfault in Cython.

src = re.sub(

r'''

\s* __Pyx_Coroutine_get_qualname\(__pyx_CoroutineObject\s+\*self\)

\s* {

\s* Py_INCREF\(self->gi_qualname\);

''',

r'''

__Pyx_Coroutine_get_qualname(__pyx_CoroutineObject *self)

{

if (self->gi_qualname == NULL) { return __pyx_empty_unicode; }

Py_INCREF(self->gi_qualname);

''',

src, flags=re.X)

src = re.sub(

r'''

\s* __Pyx_Coroutine_get_name\(__pyx_CoroutineObject\s+\*self\)

\s* {

\s* Py_INCREF\(self->gi_name\);

''',

r'''

__Pyx_Coroutine_get_name(__pyx_CoroutineObject *self)

{

if (self->gi_name == NULL) { return __pyx_empty_unicode; }

Py_INCREF(self->gi_name);

''',

src, flags=re.X)

with open(cfile, 'wt') as f:

f.write(src)

with open(os.path.join(os.path.dirname(__file__), 'README.rst')) as f:

readme = f.read()

with open(os.path.join(

os.path.dirname(__file__), 'asyncpg', '__init__.py')) as f:

for line in f:

if line.startswith('__version__ ='):

_, _, version = line.partition('=')

VERSION = version.strip(" \n'\"")

break

else:

raise RuntimeError(

'unable to read the version from asyncpg/__init__.py')

setuptools.setup(

name='asyncpg',

version=VERSION,

description='An asyncio PosgtreSQL driver',

long_description=readme,

classifiers=[

'License :: OSI Approved :: Apache Software License',

'Intended Audience :: Developers',

'Programming Language :: Python :: 3 :: Only',

'Programming Language :: Python :: 3.5',

'Programming Language :: Python :: 3.6',

'Operating System :: POSIX',

'Operating System :: MacOS :: MacOS X',

'Operating System :: Microsoft :: Windows',

'Development Status :: 5 - Production/Stable',

platforms=['POSIX'],

author='MagicStack Inc',

author_email='hello@magic.io',

url='https://github.com/MagicStack/asyncpg',

license='Apache License, Version 2.0',

packages=['asyncpg'],

provides=['asyncpg'],

include_package_data=True,

ext_modules=[

setuptools.Extension(

"asyncpg.protocol.protocol",

["asyncpg/protocol/record/recordobj.c",

"asyncpg/protocol/protocol.pyx"],

extra_compile_args=CFLAGS,

extra_link_args=LDFLAGS)

cmdclass={'build_ext': build_ext},

test_suite='tests.suite',

)

asyncpg/setup.py at get_buffer · MagicStack/asyncpg · GitHub

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