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setup.py
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setup.py
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from setuptools import setup, Extension
from setuptools.command.build_ext import build_ext
import sys
import setuptools
__version__ = '0.1.9'
class get_pybind_include(object):
"""Helper class to determine the pybind11 include path
The purpose of this class is to postpone importing pybind11
until it is actually installed, so that the ``get_include()``
method can be invoked. """
def __str__(self):
import pybind11
return pybind11.get_include()
def find_eigen(min_ver=(3, 2, 0)):
"""Helper to find or download the Eigen C++ library"""
import re, os
try_paths = [
'/usr/include/eigen3',
'/usr/local/include/eigen3',
os.path.expanduser('~/.local/include/eigen3'),
'C:/Program Files/eigen3',
'C:/Program Files (x86)/eigen3',
]
WORLD_VER_STR = "#define EIGEN_WORLD_VERSION"
MAJOR_VER_STR = "#define EIGEN_MAJOR_VERSION"
MINOR_VER_STR = "#define EIGEN_MINOR_VERSION"
EIGEN_WEB_URL = 'https://gitlab.com/libeigen/eigen/-/archive/3.3.7/eigen-3.3.7.tar.bz2'
TMP_EIGEN_FILE = 'tmp_eigen.tar.bz2'
TMP_EIGEN_DIR = 'eigen-3.3.7'
min_ver_str = '.'.join(map(str, min_ver))
eigen_path = None
for path in try_paths:
macros_path = os.path.join(path, 'Eigen/src/Core/util/Macros.h')
if os.path.exists(macros_path):
macros = open(macros_path, 'r').read().split('\n')
world_ver, major_ver, minor_ver = None, None, None
for line in macros:
if line.startswith(WORLD_VER_STR):
world_ver = int(line[len(WORLD_VER_STR):])
elif line.startswith(MAJOR_VER_STR):
major_ver = int(line[len(MAJOR_VER_STR):])
elif line.startswith(MINOR_VER_STR):
minor_ver = int(line[len(MAJOR_VER_STR):])
if not world_ver or not major_ver or not minor_ver:
print('Failed to parse macros file', macros_path)
else:
ver = (world_ver, major_ver, minor_ver)
ver_str = '.'.join(map(str, ver))
if ver < min_ver:
print('Found unsuitable Eigen version', ver_str, 'at',
path, '(need >= ' + min_ver_str + ')')
else:
print('Found Eigen version', ver_str, 'at', path)
eigen_path = path
break
if eigen_path is None:
try:
import urllib.request
print("Couldn't find Eigen locally, downloading...")
req = urllib.request.Request(
EIGEN_WEB_URL,
data=None,
headers={
'User-Agent':
'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.135 Safari/537.36'
})
with urllib.request.urlopen(req) as resp,\
open(TMP_EIGEN_FILE, 'wb') as file:
data = resp.read()
file.write(data)
import tarfile
tar = tarfile.open(TMP_EIGEN_FILE)
tar.extractall()
tar.close()
eigen_path = TMP_EIGEN_DIR
os.remove(TMP_EIGEN_FILE)
except:
print('Download failed, failed to find Eigen')
if eigen_path is not None:
print('Found eigen at', eigen_path)
return eigen_path
ext_modules = [
Extension(
'pysdf',
# Sort input source files to ensure bit-for-bit reproducible builds
# (https://github.com/pybind/python_example/pull/53)
sorted(
['src/sdf.cpp', 'src/util.cpp', 'src/renderer.cpp', 'pybind.cpp']),
include_dirs=[
'include',
# Path to pybind11 headers
get_pybind_include(),
# Eigen 3
find_eigen()
],
language='c++'),
]
# cf http://bugs.python.org/issue26689
def has_flag(compiler, flagname):
"""Return a boolean indicating whether a flag name is supported on
the specified compiler.
"""
import tempfile
import os
with tempfile.NamedTemporaryFile('w', suffix='.cpp', delete=False) as f:
f.write('int main (int argc, char **argv) { return 0; }')
fname = f.name
try:
compiler.compile([fname], extra_postargs=[flagname])
except setuptools.distutils.errors.CompileError:
return False
finally:
try:
os.remove(fname)
except OSError:
pass
return True
def cpp_flag(compiler):
"""Return the -std=c++[11/14/17] compiler flag.
The newer version is prefered over c++11 (when it is available).
"""
flags = ['-std=c++17', '-std=c++14', '-std=c++11']
for flag in flags:
if has_flag(compiler, flag):
return flag
raise RuntimeError('Unsupported compiler -- at least C++11 support '
'is needed!')
class BuildExt(build_ext):
"""A custom build extension for adding compiler-specific options."""
c_opts = {
'msvc': ['/EHsc'],
'unix': [],
}
l_opts = {
'msvc': [],
'unix': [],
}
if sys.platform == 'darwin':
darwin_opts = ['-stdlib=libc++', '-mmacosx-version-min=10.7']
c_opts['unix'] += darwin_opts
l_opts['unix'] += darwin_opts
def build_extensions(self):
ct = self.compiler.compiler_type
opts = self.c_opts.get(ct, [])
link_opts = self.l_opts.get(ct, [])
if ct == 'unix':
opts.append(cpp_flag(self.compiler))
if has_flag(self.compiler, '-fvisibility=hidden'):
opts.append('-fvisibility=hidden')
for ext in self.extensions:
ext.define_macros = [
('VERSION_INFO',
'"{}"'.format(self.distribution.get_version()))
]
ext.extra_compile_args = opts
ext.extra_link_args = link_opts
build_ext.build_extensions(self)
setup(
name='pysdf',
version=__version__,
author='Alex Yu',
author_email='alexyu99126@gmail.com',
description=
'SDF: Convert triangle mesh to continuous signed distance function + some other mesh utilities',
long_description=
'Convert triangle mesh to SDF https://github.com/sxyu/sdf. Also includes uniform surface sampling and a ray-casting based software renderer.',
url='https://github.com/sxyu/sdf',
ext_modules=ext_modules,
setup_requires=['pybind11>=2.5.0'],
cmdclass={'build_ext': BuildExt},
zip_safe=False,
)