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#!/usr/bin/env python
# coding: utf-8
import io
import os
import sys
from glob import glob
from setuptools import setup, Extension
from setuptools.command.build_ext import build_ext
from setuptools.command.sdist import sdist
PYPY = hasattr(sys, "pypy_version_info")
PY2 = sys.version_info[0] == 2
class NoCython(Exception):
pass
try:
import Cython.Compiler.Main as cython_compiler
have_cython = True
except ImportError:
have_cython = False
def cythonize(src):
sys.stderr.write("cythonize: %r\n" % (src,))
cython_compiler.compile([src], cplus=True)
def ensure_source(src):
pyx = os.path.splitext(src)[0] + ".pyx"
if not os.path.exists(src):
if not have_cython:
raise NoCython
cythonize(pyx)
elif (
os.path.exists(pyx)
and os.stat(src).st_mtime < os.stat(pyx).st_mtime
and have_cython
):
cythonize(pyx)
return src
class BuildExt(build_ext):
def build_extension(self, ext):
try:
ext.sources = list(map(ensure_source, ext.sources))
except NoCython:
print("WARNING")
print("Cython is required for building extension from checkout.")
print("Install Cython >= 0.16 or install msgpack from PyPI.")
print("Falling back to pure Python implementation.")
return
try:
return build_ext.build_extension(self, ext)
except Exception as e:
print("WARNING: Failed to compile extension modules.")
print("msgpack uses fallback pure python implementation.")
print(e)
# Cython is required for sdist
class Sdist(sdist):
def __init__(self, *args, **kwargs):
cythonize("msgpack/_cmsgpack.pyx")
sdist.__init__(self, *args, **kwargs)
libraries = []
macros = []
if sys.platform == "win32":
libraries.append("ws2_32")
macros = [("__LITTLE_ENDIAN__", "1")]
ext_modules = []
if not PYPY and not PY2 and not os.environ.get("MSGPACK_PUREPYTHON"):
ext_modules.append(
Extension(
"msgpack._cmsgpack",
sources=["msgpack/_cmsgpack.cpp"],
libraries=libraries,
include_dirs=["."],
define_macros=macros,
)
)
del libraries, macros
setup(
cmdclass={"build_ext": BuildExt, "sdist": Sdist},
ext_modules=ext_modules,
packages=["msgpack"],
)
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