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setup.py
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setup.py
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import sys
vi = sys.version_info
if vi < (3, 8):
raise RuntimeError('winloop requires Python 3.8 or greater')
# Winloop comment: winloop now supports both Windows and non-Windows.
# Below uvloop's setup.py is merged with winloop's previous setup.py.
import os
import os.path
import pathlib
import platform
import re
import shutil
import subprocess
from setuptools import setup, Extension
from setuptools.command.build_ext import build_ext
from setuptools.command.sdist import sdist
CYTHON_DEPENDENCY = 'Cython(>=0.29.36,<0.30.0)'
MACHINE = platform.machine()
MODULES_CFLAGS = [os.getenv('UVLOOP_OPT_CFLAGS', '-O2')]
_ROOT = pathlib.Path(__file__).parent
LIBUV_DIR = str(_ROOT / 'vendor' / 'libuv')
LIBUV_BUILD_DIR = str(_ROOT / 'build' / 'libuv-{}'.format(MACHINE))
def _libuv_build_env():
env = os.environ.copy()
cur_cflags = env.get('CFLAGS', '')
if not re.search(r'-O\d', cur_cflags):
cur_cflags += ' -O2'
env['CFLAGS'] = (cur_cflags + ' -fPIC ' + env.get('ARCHFLAGS', ''))
return env
def _libuv_autogen(env):
if os.path.exists(os.path.join(LIBUV_DIR, 'configure')):
# No need to use autogen, the configure script is there.
return
if not os.path.exists(os.path.join(LIBUV_DIR, 'autogen.sh')):
raise RuntimeError(
'the libuv submodule has not been checked out; '
'try running "git submodule init; git submodule update"')
subprocess.run(
['/bin/sh', 'autogen.sh'], cwd=LIBUV_DIR, env=env, check=True)
class uvloop_sdist(sdist):
def run(self):
if sys.platform != 'win32':
# Make sure sdist archive contains configure
# to avoid the dependency on autotools.
_libuv_autogen(_libuv_build_env())
super().run()
class uvloop_build_ext(build_ext):
user_options = 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'),
('use-system-libuv', None,
'Use the system provided libuv, instead of the bundled one'),
]
boolean_options = build_ext.boolean_options + [
'cython-always',
'cython-annotate',
'use-system-libuv',
]
def initialize_options(self):
super().initialize_options()
self.use_system_libuv = False
self.cython_always = False
self.cython_annotate = None
self.cython_directives = None
def finalize_options(self):
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:
import pkg_resources
# Double check Cython presence in case setup_requires
# didn't go into effect (most likely because someone
# imported Cython before setup_requires injected the
# correct egg into sys.path.
try:
import Cython
except ImportError:
raise RuntimeError(
'please install {} to compile uvloop from source'.format(
CYTHON_DEPENDENCY))
cython_dep = pkg_resources.Requirement.parse(CYTHON_DEPENDENCY)
if Cython.__version__ not in cython_dep:
raise RuntimeError(
'uvloop requires {}, got Cython=={}'.format(
CYTHON_DEPENDENCY, Cython.__version__
))
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)
super().finalize_options()
def build_libuv(self):
env = _libuv_build_env()
# Make sure configure and friends are present in case
# we are building from a git checkout.
_libuv_autogen(env)
# Copy the libuv tree to build/ so that its build
# products don't pollute sdist accidentally.
if os.path.exists(LIBUV_BUILD_DIR):
shutil.rmtree(LIBUV_BUILD_DIR)
shutil.copytree(LIBUV_DIR, LIBUV_BUILD_DIR)
# Sometimes pip fails to preserve the timestamps correctly,
# in which case, make will try to run autotools again.
subprocess.run(
['touch', 'configure.ac', 'aclocal.m4', 'configure',
'Makefile.am', 'Makefile.in'],
cwd=LIBUV_BUILD_DIR, env=env, check=True)
if 'LIBUV_CONFIGURE_HOST' in env:
cmd = ['./configure', '--host=' + env['LIBUV_CONFIGURE_HOST']]
else:
cmd = ['./configure']
subprocess.run(
cmd,
cwd=LIBUV_BUILD_DIR, env=env, check=True)
j_flag = '-j{}'.format(os.cpu_count() or 1)
c_flag = "CFLAGS={}".format(env['CFLAGS'])
subprocess.run(
['make', j_flag, c_flag],
cwd=LIBUV_BUILD_DIR, env=env, check=True)
def build_extensions(self):
if sys.platform == 'win32':
path = pathlib.Path("vendor", "libuv", "src")
c_files = [p.as_posix() for p in path.iterdir() if p.suffix == '.c']
c_files += [p.as_posix() for p in (path/'win').iterdir() if p.suffix == '.c']
self.extensions[-1].sources += c_files
super().build_extensions()
return
if self.use_system_libuv:
self.compiler.add_library('uv')
if sys.platform == 'darwin' and \
os.path.exists('/opt/local/include'):
# Support macports on Mac OS X.
self.compiler.add_include_dir('/opt/local/include')
else:
libuv_lib = os.path.join(LIBUV_BUILD_DIR, '.libs', 'libuv.a')
if not os.path.exists(libuv_lib):
self.build_libuv()
if not os.path.exists(libuv_lib):
raise RuntimeError('failed to build libuv')
self.extensions[-1].extra_objects.extend([libuv_lib])
self.compiler.add_include_dir(os.path.join(LIBUV_DIR, 'include'))
if sys.platform.startswith('linux'):
self.compiler.add_library('rt')
elif sys.platform.startswith(('freebsd', 'dragonfly')):
self.compiler.add_library('kvm')
elif sys.platform.startswith('sunos'):
self.compiler.add_library('kstat')
self.compiler.add_library('pthread')
super().build_extensions()
with open(str(_ROOT / 'winloop' / '_version.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 winloop/_version.py')
if sys.platform == 'win32':
from Cython.Build import cythonize
ext = cythonize([
Extension(
"winloop.loop",
sources=[
"winloop/loop.pyx"
],
include_dirs=[
"vendor/libuv/src",
"vendor/libuv/src/win",
"vendor/libuv/include"
],
extra_link_args=[ # subset of libuv Windows libraries
"Shell32.lib",
"Ws2_32.lib",
"Advapi32.lib",
"iphlpapi.lib",
"Userenv.lib",
"User32.lib",
"Dbghelp.lib",
"Ole32.lib"
],
define_macros=[
("WIN32_LEAN_AND_MEAN", 1),
("_WIN32_WINNT", "0x0602")
]
)
])
else:
ext = [
Extension(
"winloop.loop",
sources=[
"winloop/loop.pyx",
],
extra_compile_args=MODULES_CFLAGS
),
]
setup_requires = []
if not (_ROOT / 'winloop' / 'loop.c').exists() or '--cython-always' in sys.argv:
# No Cython output, require Cython to build.
setup_requires.append(CYTHON_DEPENDENCY)
setup(
version=VERSION,
cmdclass={
'sdist': uvloop_sdist,
'build_ext': uvloop_build_ext
},
ext_modules=ext,
setup_requires=setup_requires
)