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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Setup script for PyPI; use CMakeFile.txt to build extension modules
import contextlib
import os
import re
import shutil
import string
import subprocess
import sys
import tempfile
import setuptools.command.sdist
DIR = os.path.abspath(os.path.dirname(__file__))
VERSION_REGEX = re.compile(
r"^\s*#\s*define\s+PYBIND11_VERSION_([A-Z]+)\s+(.*)$", re.MULTILINE
)
# PYBIND11_GLOBAL_SDIST will build a different sdist, with the python-headers
# files, and the sys.prefix files (CMake and headers).
global_sdist = os.environ.get("PYBIND11_GLOBAL_SDIST", False)
setup_py = "tools/setup_global.py.in" if global_sdist else "tools/setup_main.py.in"
extra_cmd = 'cmdclass["sdist"] = SDist\n'
to_src = (
("pyproject.toml", "tools/pyproject.toml"),
("setup.py", setup_py),
)
# Read the listed version
with open("pybind11/_version.py") as f:
code = compile(f.read(), "pybind11/_version.py", "exec")
loc = {}
exec(code, loc)
version = loc["__version__"]
# Verify that the version matches the one in C++
with open("include/pybind11/detail/common.h") as f:
matches = dict(VERSION_REGEX.findall(f.read()))
cpp_version = "{MAJOR}.{MINOR}.{PATCH}".format(**matches)
if version != cpp_version:
msg = "Python version {} does not match C++ version {}!".format(
version, cpp_version
)
raise RuntimeError(msg)
def get_and_replace(filename, binary=False, **opts):
with open(filename, "rb" if binary else "r") as f:
contents = f.read()
# Replacement has to be done on text in Python 3 (both work in Python 2)
if binary:
return string.Template(contents.decode()).substitute(opts).encode()
else:
return string.Template(contents).substitute(opts)
# Use our input files instead when making the SDist (and anything that depends
# on it, like a wheel)
class SDist(setuptools.command.sdist.sdist):
def make_release_tree(self, base_dir, files):
setuptools.command.sdist.sdist.make_release_tree(self, base_dir, files)
for to, src in to_src:
txt = get_and_replace(src, binary=True, version=version, extra_cmd="")
dest = os.path.join(base_dir, to)
# This is normally linked, so unlink before writing!
os.unlink(dest)
with open(dest, "wb") as f:
f.write(txt)
# Backport from Python 3
@contextlib.contextmanager
def TemporaryDirectory(): # noqa: N802
"Prepare a temporary directory, cleanup when done"
try:
tmpdir = tempfile.mkdtemp()
yield tmpdir
finally:
shutil.rmtree(tmpdir)
# Remove the CMake install directory when done
@contextlib.contextmanager
def remove_output(*sources):
try:
yield
finally:
for src in sources:
shutil.rmtree(src)
with remove_output("pybind11/include", "pybind11/share"):
# Generate the files if they are not present.
with TemporaryDirectory() as tmpdir:
cmd = ["cmake", "-S", ".", "-B", tmpdir] + [
"-DCMAKE_INSTALL_PREFIX=pybind11",
"-DBUILD_TESTING=OFF",
"-DPYBIND11_NOPYTHON=ON",
]
cmake_opts = dict(cwd=DIR, stdout=sys.stdout, stderr=sys.stderr)
subprocess.check_call(cmd, **cmake_opts)
subprocess.check_call(["cmake", "--install", tmpdir], **cmake_opts)
txt = get_and_replace(setup_py, version=version, extra_cmd=extra_cmd)
code = compile(txt, setup_py, "exec")
exec(code, {"SDist": SDist})
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