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#!/usr/bin/env python
"""
pyzopfli
======
Python bindings to zopfli
"""
from setuptools import setup, Extension
from setuptools.command.build_ext import build_ext
from io import open
import os
def bool_from_environ(key: str, default: bool = False):
"""Get a boolean value from an environment variable."""
value = os.environ.get(key)
if not value:
return default
return value.lower() not in ("0", "false", "no", "off")
class custom_build_ext(build_ext):
"""Pass platform-specific compiler/linker flags"""
def build_extensions(self):
compiler_type = self.compiler.compiler_type
if compiler_type in "unix":
for ext in self.extensions:
# on some Unix-like systems, such as Linux, the libc math
# library is not linked by default:
# https://github.com/cython/cython/issues/1585
ext.extra_link_args.append("-lm")
build_ext.build_extensions(self)
with open("README.rst", "r", encoding="utf-8") as readme:
long_description = readme.read()
# Python Limited API for stable ABI support is enabled by default.
# Set USE_PY_LIMITED_API=0 to turn it off.
# https://docs.python.org/3/c-api/stable.html#limited-c-api
use_py_limited_api = bool_from_environ("USE_PY_LIMITED_API", default=True)
# NOTE: this must be kept in sync with python_requires='>=3.10' below
limited_api_min_version = "0x030a0000" # Python 3.10
prefer_system_zopfli = bool(os.environ.get("USE_SYSTEM_ZOPFLI"))
# Build list of define_macros
define_macros = []
if use_py_limited_api:
define_macros.append(("Py_LIMITED_API", limited_api_min_version))
if prefer_system_zopfli:
system_define_macros = [("SYSTEM_ZOPFLI", "1")] + define_macros
zopfli_ext_kwargs = {
"sources": [
"src/zopflimodule.c",
],
"libraries": ["zopfli", "zopflipng"],
"define_macros": system_define_macros,
}
else:
zopfli_ext_kwargs = {
"sources": [
"zopfli/src/zopfli/blocksplitter.c",
"zopfli/src/zopfli/cache.c",
"zopfli/src/zopfli/deflate.c",
"zopfli/src/zopfli/gzip_container.c",
"zopfli/src/zopfli/squeeze.c",
"zopfli/src/zopfli/hash.c",
"zopfli/src/zopfli/katajainen.c",
"zopfli/src/zopfli/lz77.c",
"zopfli/src/zopfli/tree.c",
"zopfli/src/zopfli/util.c",
"zopfli/src/zopfli/zlib_container.c",
"zopfli/src/zopfli/zopfli_lib.c",
"zopfli/src/zopflipng/lodepng/lodepng.cpp",
"zopfli/src/zopflipng/lodepng/lodepng_util.cpp",
"zopfli/src/zopflipng/zopflipng_lib.cc",
"src/zopflimodule.c",
],
"define_macros": define_macros,
}
setup(
name="zopfli",
use_scm_version={"write_to": "src/zopfli/_version.py"},
author="Adam DePrince",
author_email="deprince@googlealumni.com",
maintainer="Cosimo Lupo",
maintainer_email="cosimo@anthrotype.com",
description="Zopfli module for python",
long_description=long_description,
ext_modules=[
Extension(
"zopfli.zopfli", py_limited_api=use_py_limited_api, **zopfli_ext_kwargs
)
],
options={"bdist_wheel": {"py_limited_api": "cp310"}} if use_py_limited_api else {},
package_dir={"": "src"},
packages=["zopfli"],
zip_safe=True,
license="Apache-2.0",
include_package_data=True,
classifiers=[
"Intended Audience :: Developers",
"License :: OSI Approved :: Apache Software License",
"Programming Language :: Python :: 3",
"Programming Language :: Python :: 3.10",
"Programming Language :: Python :: 3.11",
"Programming Language :: Python :: 3.12",
"Programming Language :: Python :: 3.13",
"Programming Language :: Python :: 3.14",
"Programming Language :: Python :: Implementation :: CPython",
"Programming Language :: Python :: Implementation :: PyPy",
"Topic :: System :: Archiving :: Compression",
],
url="https://github.com/fonttools/py-zopfli",
test_suite="tests",
cmdclass={
"build_ext": custom_build_ext,
},
setup_requires=["setuptools_scm"],
extras_require={"test": ["pytest"]},
python_requires=">=3.10",
)
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