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setup.py
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setup.py
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import io
import os
import sys
import shutil
import subprocess
import urllib.request
import tarfile
from distutils import log
import setuptools
from setuptools import setup, Extension, Command
from setuptools.command.build_ext import build_ext
from setuptools.command.build_clib import build_clib
SOURCES = ["_pyorc.cpp", "Converter.cpp", "PyORCStream.cpp", "Reader.cpp", "Writer.cpp"]
HEADERS = ["Converter.h", "PyORCStream.h", "Reader.h", "Writer.h"]
class BuildORCLib(Command):
description = "run cmake to build ORC C++ Core library"
user_options = [
("orc-version=", None, "the version of the ORC lib"),
("output-dir=", None, "the output directory"),
("source-url=", None, "the HTTP url for downloading the ORC source"),
("build-type=", None, "set build type for ORC lib"),
]
def initialize_options(self):
"""Set default values for options."""
self.orc_version = "1.6.5"
self.output_dir = "deps/"
self.source_url = "https://www-us.apache.org/dist/orc/"
self.build_type = "debug"
def finalize_options(self):
"""Post-process options."""
pass
def run(self):
log.info("Build ORC C++ Core library")
if not os.path.isdir(
os.path.join(self.output_dir, "orc-{ver}".format(ver=self.orc_version))
):
self._download_source()
build_dir = self._build_with_cmake()
pack_dir = os.path.join(
build_dir,
"_CPack_Packages",
sys.platform.title(),
"TGZ",
"ORC-{ver}-{plat}".format(ver=self.orc_version, plat=sys.platform.title()),
)
log.info("Move artifacts to the %s folder" % self.output_dir)
try:
shutil.move(os.path.join(pack_dir, "include"), self.output_dir)
shutil.move(os.path.join(pack_dir, "lib"), self.output_dir)
shutil.move(os.path.join(pack_dir, "bin"), self.output_dir)
shutil.move(
os.path.join(
self.output_dir,
"orc-{ver}".format(ver=self.orc_version),
"examples",
),
self.output_dir,
)
except:
pass
def _download_source(self) -> None:
tmp_tar = io.BytesIO()
url = "{url}orc-{ver}/orc-{ver}.tar.gz".format(
url=self.source_url, ver=self.orc_version
)
with urllib.request.urlopen(url) as src:
log.info("Download ORC release from: %s" % url)
tmp_tar.write(src.read())
tmp_tar.seek(0)
tar_src = tarfile.open(fileobj=tmp_tar, mode="r:gz")
log.info("Extract archives in: %s" % self.output_dir)
tar_src.extractall(self.output_dir)
tar_src.close()
def _build_with_cmake(self) -> str:
cmake_args = [
"-DCMAKE_BUILD_TYPE={0}".format(self.build_type.upper()),
"-DBUILD_JAVA=OFF",
"-DBUILD_LIBHDFSPP=OFF",
"-DCMAKE_POSITION_INDEPENDENT_CODE=ON",
]
compiler_flags = ["CFLAGS=-fPIC", "CXXFLAGS=-fPIC"]
env = os.environ.copy()
build_dir = os.path.join(
self.output_dir, "orc-{ver}".format(ver=self.orc_version), "build"
)
if not os.path.exists(build_dir):
os.makedirs(build_dir)
log.info("Build libraries with cmake")
env.update([flg.split("=") for flg in compiler_flags])
cmake_cmd = ["cmake", ".."] + cmake_args
log.info("Cmake command: %s" % cmake_cmd)
subprocess.check_call(cmake_cmd, cwd=build_dir, env=env)
subprocess.check_call(["make", "-j4", "package"], cwd=build_dir, env=env)
return build_dir
class get_pybind_include:
"""Helper class to determine the pybind11 include path
The purpose of this class is to postpone importing pybind11
until it is actually installed, so that the ``get_include()``
method can be invoked. """
def __init__(self, user=False):
self.user = user
def __str__(self):
import pybind11
return pybind11.get_include(self.user)
SOURCES = [os.path.join("src/_pyorc", src) for src in SOURCES]
HEADERS = [os.path.join("src/_pyorc", hdr) for hdr in HEADERS]
LIBS = ["orc", "protobuf", "protoc", "lz4", "zstd", "z", "snappy", "pthread"]
EXT_MODULES = [
Extension(
"pyorc._pyorc",
sources=SOURCES,
depends=HEADERS,
libraries=LIBS,
include_dirs=[
# Path to pybind11 headers
get_pybind_include(),
get_pybind_include(user=True),
"deps/include/",
],
library_dirs=["deps/lib/"],
language="c++",
)
]
def has_flag(compiler, flagname):
"""Return a boolean indicating whether a flag name is supported on
the specified compiler.
"""
import tempfile
with tempfile.NamedTemporaryFile("w", suffix=".cpp") as f:
f.write("int main (int argc, char **argv) { return 0; }")
try:
compiler.compile([f.name], extra_postargs=[flagname])
except setuptools.distutils.errors.CompileError:
return False
finally:
shutil.rmtree("tmp/", ignore_errors=True)
return True
def cpp_flag(compiler):
"""Return the -std=c++[11/14/17] compiler flag.
The newer version is preferred over c++11 (when it is available).
"""
flags = ["-std=c++17", "-std=c++14", "-std=c++11"]
for flag in flags:
if has_flag(compiler, flag):
return flag
raise RuntimeError("Unsupported compiler -- at least C++11 support is needed!")
class BuildExt(build_ext):
"""A custom build extension for adding compiler-specific options."""
c_opts = {"msvc": ["/EHsc"], "unix": []}
l_opts = {"msvc": [], "unix": []}
if sys.platform == "darwin":
darwin_opts = ["-stdlib=libc++", "-mmacosx-version-min=10.7"]
c_opts["unix"] += darwin_opts
l_opts["unix"] += darwin_opts
def build_extensions(self):
ct = self.compiler.compiler_type
opts = self.c_opts.get(ct, [])
link_opts = self.l_opts.get(ct, [])
if ct == "unix":
opts.append('-DVERSION_INFO="%s"' % self.distribution.get_version())
opts.append(cpp_flag(self.compiler))
opts.append("-fvisibility=hidden")
elif ct == "msvc":
opts.append('/DVERSION_INFO=\\"%s\\"' % self.distribution.get_version())
for ext in self.extensions:
ext.extra_compile_args = opts
ext.extra_link_args = link_opts
build_ext.build_extensions(self)
with open("README.rst") as file:
LONG_DESC = file.read()
setup(
name="pyorc",
version="0.4.0",
description="Python module for reading and writing Apache ORC file format.",
author="noirello",
author_email="noirello@gmail.com",
url="https://github.com/noirello/pyorc",
long_description=LONG_DESC,
license="Apache License, Version 2.0",
ext_modules=EXT_MODULES,
package_dir={"pyorc": "src/pyorc"},
packages=["pyorc"],
include_package_data=True,
install_requires=["pybind11>=2.5"],
setup_requires=["pybind11>=2.5"],
cmdclass={"build_ext": BuildExt, "build_orc": BuildORCLib},
keywords=["python3", "orc", "apache-orc"],
classifiers=[
"Development Status :: 3 - Alpha",
"Intended Audience :: Developers",
"Intended Audience :: System Administrators",
"License :: OSI Approved :: Apache Software License",
"Programming Language :: C++",
"Programming Language :: Python :: 3 :: Only",
"Programming Language :: Python :: 3.6",
"Programming Language :: Python :: 3.7",
"Programming Language :: Python :: 3.8",
],
python_requires=">=3.6",
)