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#!/usr/bin/env python3
# Copyright (C) 2011-2026, Antonio Valentino <antonio.valentino@tiscali.it>
#
# This file is part of PyEPR.
#
# PyEPR is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# PyEPR is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with PyEPR. If not, see <http://www.gnu.org/licenses/>.
import os
import sys
import setuptools
from packaging.version import Version
try:
import Cython
print(f"CYTHON_VERSION: {Cython.__version__}")
del Cython
except ImportError:
print("CYTHON not installed")
# https://mail.python.org/pipermail/distutils-sig/2007-September/008253.html
class NumpyExtension(setuptools.Extension):
"""Extension type that adds the NumPy include directory to include_dirs."""
@property
def include_dirs(self):
from numpy import get_include
return [*self._include_dirs, get_include()]
@include_dirs.setter
def include_dirs(self, include_dirs):
self._include_dirs = include_dirs
def setup_extension(eprsrcdir=None, *, coverage: bool = False):
import glob
if eprsrcdir:
print(f'EPR_API: using EPR C API sources at "{eprsrcdir}"')
extra_sources = glob.glob(f"{eprsrcdir}/epr_*.c")
include_dirs = [eprsrcdir]
libraries = []
else:
print("EPR_API: using pre-built dynamic library for EPR C API")
extra_sources = []
include_dirs = []
libraries = ["epr_api"]
define_macros = [("NPY_NO_DEPRECATED_API", "NPY_1_7_API_VERSION")]
if coverage:
define_macros.extend([("CYTHON_TRACE_NOGIL", "1")])
ext = NumpyExtension(
"epr._epr",
sources=[os.path.join("src", "epr", "_epr.pyx"), *extra_sources],
include_dirs=include_dirs,
libraries=libraries,
language="c",
define_macros=define_macros,
)
# compiler directives
language_level = "3"
ext.cython_directives = {"language_level": language_level}
print(f"CYTHON_LANGUAGE_LEVEL: {language_level}")
if coverage:
ext.cython_directives["linetrace"] = True
try:
import Cython
except ImportError:
pass
else:
if Version(Cython.__version__) >= Version("3.1.0b1"):
ext.cython_directives["freethreading_compatible"] = True
return ext
def make_config(eprsrcdir=None, *, coverage=False):
return {
"ext_modules": [setup_extension(eprsrcdir, coverage=coverage)],
}
def get_parser():
import argparse
PYEPR_COVERAGE_STR = os.environ.get("PYEPR_COVERAGE", "").upper()
DEFAULT_COVERAGE = bool(
PYEPR_COVERAGE_STR in {"Y", "YES", "TRUE", "OK", "ON", "1"}
)
DEFAULT_EPRAPI_SRC = "extern/epr-api/src"
if not os.path.exists(DEFAULT_EPRAPI_SRC):
DEFAULT_EPRAPI_SRC = ""
DEFAULT_EPRAPI_SRC = os.environ.get("PYEPR_EPRAPI_SRC", DEFAULT_EPRAPI_SRC)
parser = argparse.ArgumentParser(add_help=False)
parser.add_argument(
"--coverage",
action="store_true",
default=DEFAULT_COVERAGE,
help="build the epr module to allow cython coverage measurement "
"(default: %(default)s)",
)
parser.add_argument(
"--epr-api-src",
default=DEFAULT_EPRAPI_SRC,
help="set the path to the EPR-API source tree. "
"If not set uses the system libraries for epr-api. "
"Default: %(default)s",
)
return parser
if __name__ == "__main__":
parser = get_parser()
extra_args, setup_argv = parser.parse_known_args(sys.argv)
sys.argv[:] = setup_argv
print("PYEPR_COVERAGE:", extra_args.coverage)
config = make_config(extra_args.epr_api_src, coverage=extra_args.coverage)
if "-h" in setup_argv or "--help" in setup_argv:
msg = parser.format_help()
msg = "\n".join(msg.splitlines()[2:]) # remove usage string
print(msg)
print()
print("config:", config)
setuptools.setup(**config)
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