"""Builds the Cython extension; all other packaging configuration is in pyproject.toml."""

import os

from pathlib import Path

import Cython.Compiler.Options

from Cython.Build import cythonize

from setuptools import Extension, setup

Cython.Compiler.Options.annotate = True

# Set to True if the library can still function when extensions fail to compile

# (e.g. slower, python fallback). Don't allow failure if cibuildwheel is running.

# allowed_to_fail = os.environ.get("CIBUILDWHEEL", "0") != "1"

allowed_to_fail = False

if os.name == "nt": # Windows

extra_compile_args = [

"/O2",

]

else: # UNIX-based systems

extra_compile_args = [

"-O3",

"-Werror",

"-Wno-unreachable-code-fallthrough",

"-Wno-deprecated-declarations",

"-Wno-parentheses-equality",

]

extra_compile_args.append("-UNDEBUG") # Cython disables asserts by default.

# Relative to project root directory

include_dirs = [

"pythontemplate/",

"pythontemplate/_c_src",

]

c_files = [str(x) for x in Path("pythontemplate/_c_src").rglob("*.c")]

extensions = [

Extension(

# Your .pyx file will be available to cpython at this location.

"pythontemplate._c_extension",

[

# ".c" and ".pyx" source file paths

"pythontemplate/_c_extension.pyx",

*c_files,

],

include_dirs=include_dirs,

extra_compile_args=extra_compile_args,

language="c",

optional=allowed_to_fail,

),

]

setup(

ext_modules=cythonize(extensions, include_path=include_dirs, language_level=3, annotate=True),

)