#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
import subprocess
import sys
import io
if "READTHEDOCS" in os.environ:
# When building with readthedocs, install the dependencies too.
# See https://github.com/rtfd/readthedocs.org/issues/2776
for reqs in ["requirements.txt", "suggestions.txt"]:
if os.path.isfile(reqs):
subprocess.check_call([sys.executable, "-m", "pip", "install", "-r", reqs])
try:
from itertools import ifilter as filter
except ImportError:
pass # python 3
from os import path
from ast import parse
from distutils.command.build_ext import build_ext as _build_ext
from distutils.core import setup
from distutils.extension import Extension as _Extension
import Cython.Build
from copy import copy
try:
FileNotFoundError
except NameError:
FileNotFoundError = OSError # Python 2 workaround
class Extension(_Extension, object):
"""
distutils.extension.Extension subclass supporting additional
keywords:
* fplll: compile and link with flags from fplll as defined below in
build_ext.fplll below
* other: flags for compiling and linking other extension modules
(without fplll flags) as defined below in build_ext.other
"""
def __init__(self, name, sources, **kwargs):
self.fplll = kwargs.pop("fplll", False)
self.other = kwargs.pop("other", False)
super(Extension, self).__init__(name, sources, **kwargs)
class build_ext(_build_ext, object):
# CONFIG VARIABLES
cythonize_dir = "build"
fplll = None
other = None
def_varnames = ["HAVE_QD", "HAVE_LONG_DOUBLE", "HAVE_NUMPY"]
config_pxi_path = os.path.join(".", "src", "fpylll", "config.pxi")
def finalize_options(self):
super(build_ext, self).finalize_options()
def_vars = self._generate_config_pxi()
include_dirs = [os.path.join(sys.prefix, "include")]
library_dirs = [os.path.join(sys.exec_prefix, "lib")]
cxxflags = list(filter(None, os.environ.get("CXXFLAGS", "").split()))
if self.fplll is None:
self.fplll = {
"include_dirs": include_dirs,
"library_dirs": library_dirs,
"language": "c++",
"libraries": ["gmp", "mpfr", "fplll"],
"extra_compile_args": ["-std=c++11"] + cxxflags,
"extra_link_args": ["-std=c++11"],
}
if def_vars["HAVE_QD"]:
self.fplll["libraries"].append("qd")
if self.other is None:
self.other = {
"include_dirs": include_dirs,
"library_dirs": library_dirs,
"libraries": ["gmp"],
}
if "READTHEDOCS" in os.environ:
# ReadTheDocs uses fplll from Conda, which was built with the old
# C++ ABI.
self.fplll["extra_compile_args"].append("-D_GLIBCXX_USE_CXX11_ABI=0")
if def_vars["HAVE_NUMPY"]:
import numpy
numpy_args = copy(self.fplll)
numpy_args["include_dirs"].append(numpy.get_include())
self.extensions.append(
Extension("fpylll.numpy", ["src/fpylll/numpy.pyx"], **numpy_args)
)
for ext in self.extensions:
if ext.fplll:
for key, value in self.fplll.items():
setattr(ext, key, value)
elif ext.other:
for key, value in self.other.items():
setattr(ext, key, value)
def run(self):
self.extensions = Cython.Build.cythonize(
self.extensions,
include_path=["src"],
build_dir=self.cythonize_dir,
compiler_directives={"binding": True, "embedsignature": True, "language_level": 2},
)
super(build_ext, self).run()
def _generate_config_pxi(self):
def_vars = {}
config_pxi = []
for defvar in self.def_varnames:
# We can optionally read values for these variables for the
# environment; this is mostly used to force different values for
# testing
value = os.environ.get(defvar)
if value is not None:
value = value.lower() in ["1", "true", "yes"]
else:
value = getattr(self, "_get_" + defvar.lower())()
config_pxi.append("DEF {0}={1}".format(defvar, value))
def_vars[defvar] = value
config_pxi = "\n".join(config_pxi) + "\n"
try:
cur_config_pxi = open(self.config_pxi_path, "r").read()
except IOError:
cur_config_pxi = ""
if cur_config_pxi != config_pxi: # check if we need to write
with open(self.config_pxi_path, "w") as fw:
fw.write(config_pxi)
return def_vars
def _get_have_qd(self):
if "CONDA_PREFIX" in os.environ:
os.environ["PKG_CONFIG_PATH"] = ":".join(
[
os.path.join(os.environ["CONDA_PREFIX"], "lib", "pkgconfig"),
os.environ.get("PKG_CONFIG_PATH", ""),
]
)
if "VIRTUAL_ENV" in os.environ:
os.environ["PKG_CONFIG_PATH"] = ":".join(
[
os.path.join(os.environ["VIRTUAL_ENV"], "lib", "pkgconfig"),
os.environ.get("PKG_CONFIG_PATH", ""),
]
)
try:
libs = subprocess.check_output(["pkg-config", "fplll", "--libs"])
if b"-lqd" in libs:
return True
except (subprocess.CalledProcessError, FileNotFoundError):
pass
return False
def _get_have_numpy(self):
try:
import numpy
return True
except ImportError:
pass
return False
def _get_have_long_double(self):
# Ideally this would check the fplll headers explicitly for the
# the FPLLL_WITH_LONG_DOUBLE define, but for now it suffices to
# say that long double support is disabled on Cygwin
return not sys.platform.startswith("cygwin")
# EXTENSIONS
extensions = [
Extension("fpylll.gmp.pylong", ["src/fpylll/gmp/pylong.pyx"], other=True),
Extension("fpylll.fplll.integer_matrix", ["src/fpylll/fplll/integer_matrix.pyx"], fplll=True),
Extension("fpylll.fplll.gso", ["src/fpylll/fplll/gso.pyx"], fplll=True),
Extension("fpylll.fplll.lll", ["src/fpylll/fplll/lll.pyx"], fplll=True),
Extension("fpylll.fplll.wrapper", ["src/fpylll/fplll/wrapper.pyx"], fplll=True),
Extension("fpylll.fplll.bkz_param", ["src/fpylll/fplll/bkz_param.pyx"], fplll=True),
Extension("fpylll.fplll.bkz", ["src/fpylll/fplll/bkz.pyx"], fplll=True),
Extension("fpylll.fplll.enumeration", ["src/fpylll/fplll/enumeration.pyx"], fplll=True),
Extension("fpylll.fplll.svpcvp", ["src/fpylll/fplll/svpcvp.pyx"], fplll=True),
Extension("fpylll.fplll.pruner", ["src/fpylll/fplll/pruner.pyx"], fplll=True),
Extension("fpylll.fplll.sieve_gauss", ["src/fpylll/fplll/sieve_gauss.pyx"], fplll=True),
Extension("fpylll.util", ["src/fpylll/util.pyx"], fplll=True),
Extension("fpylll.io", ["src/fpylll/io.pyx"], fplll=True),
Extension("fpylll.config", ["src/fpylll/config.pyx"], fplll=True),
]
# VERSION
with open(path.join("src", "fpylll", "__init__.py")) as f:
__version__ = (
parse(next(filter(lambda line: line.startswith("__version__"), f))).body[0].value.s
)
# FIRE
def readme_to_long_description():
"""
Python wants long descriptions to be plain ASCII. Our contributors have names that are not
plain ASCII. Thus, we cut off the list of contributors when reading the long description.
"""
long_description = io.open("README.rst", encoding="utf-8").read()
cut = long_description.index("Attribution & License")
return str(long_description[:cut])
setup(
name="fpylll",
description="A Python interface for https://github.com/fplll/fplll",
author=u"Martin R. Albrecht",
author_email="fplll-devel@googlegroups.com",
url="https://github.com/fplll/fpylll",
version=__version__,
ext_modules=extensions,
package_dir={"": "src"},
packages=["fpylll", "fpylll.gmp", "fpylll.fplll", "fpylll.algorithms", "fpylll.tools"],
license="GNU General Public License, version 2 or later",
long_description=readme_to_long_description(),
cmdclass={"build_ext": build_ext},
)