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import os
import sys
from setuptools import Extension, setup
from setuptools.command.bdist_wheel import bdist_wheel
from setuptools.command.build_ext import build_ext
from setuptools.errors import CCompilerError, ExecError, PlatformError
cmdclass = {}
PYPY = hasattr(sys, "pypy_version_info")
if os.name == "nt":
# Disable unknown pragma warning
compile_args = ["-wd4068"]
libraries = ["Ws2_32"]
else:
compile_args = ["-Wall", "-Wextra", "-Wno-unknown-pragmas"]
libraries = []
if os.getenv("MAXMINDDB_USE_SYSTEM_LIBMAXMINDDB"):
ext_module = [
Extension(
"maxminddb.extension",
libraries=["maxminddb", *libraries],
sources=["extension/maxminddb.c"],
extra_compile_args=compile_args,
),
]
else:
ext_module = [
Extension(
"maxminddb.extension",
libraries=libraries,
sources=[
"extension/maxminddb.c",
"extension/libmaxminddb/src/data-pool.c",
"extension/libmaxminddb/src/maxminddb.c",
],
define_macros=[
("HAVE_CONFIG_H", 0),
("MMDB_LITTLE_ENDIAN", 1 if sys.byteorder == "little" else 0),
# We define these for maximum compatibility. The extension
# itself supports all variations currently, but probing to
# see what the compiler supports is a bit annoying to do
# here, and we aren't using uint128 for much.
("MMDB_UINT128_USING_MODE", 0),
("MMDB_UINT128_IS_BYTE_ARRAY", 1),
("PACKAGE_VERSION", '"maxminddb-python"'),
],
include_dirs=[
"extension",
"extension/libmaxminddb/include",
"extension/libmaxminddb/src",
],
extra_compile_args=compile_args,
),
]
# Cargo cult code for installing extension with pure Python fallback.
# Taken from SQLAlchemy, but this same basic code exists in many modules.
ext_errors = (CCompilerError, ExecError, PlatformError)
class BuildFailed(Exception):
def __init__(self, cause: Exception) -> None:
super().__init__()
self.cause = cause
class ve_build_ext(build_ext):
# This class allows C extension building to fail.
def run(self) -> None:
try:
build_ext.run(self)
except PlatformError as ex:
raise BuildFailed(ex) from ex
def build_extension(self, ext) -> None:
try:
build_ext.build_extension(self, ext)
except ext_errors as ex:
raise BuildFailed(ex) from ex
except ValueError as ex:
# this can happen on Windows 64 bit, see Python issue 7511
if "'path'" in str(ex):
raise BuildFailed(ex) from ex
raise
cmdclass["build_ext"] = ve_build_ext
def status_msgs(*msgs):
print("*" * 75)
for msg in msgs:
print(msg)
print("*" * 75)
def find_packages(location):
packages = []
for pkg in ["maxminddb"]:
for _dir, _subdirectories, files in os.walk(os.path.join(location, pkg)):
if "__init__.py" in files:
tokens = _dir.split(os.sep)[len(location.split(os.sep)) :]
packages.append(".".join(tokens))
return packages
def run_setup(with_cext) -> None:
kwargs = {}
loc_cmdclass = cmdclass.copy()
if with_cext:
kwargs["ext_modules"] = ext_module
loc_cmdclass["bdist_wheel"] = bdist_wheel
setup(cmdclass=loc_cmdclass, **kwargs)
try:
run_setup(True)
except BuildFailed as exc:
if os.getenv("MAXMINDDB_REQUIRE_EXTENSION"):
raise
status_msgs(
exc.cause,
"WARNING: The C extension could not be compiled, "
+ "speedups are not enabled.",
"Failure information, if any, is above.",
"Retrying the build without the C extension now.",
)
run_setup(False)
status_msgs(
"WARNING: The C extension could not be compiled, "
+ "speedups are not enabled.",
"Plain-Python build succeeded.",
)
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