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#!/usr/bin/env python
import sys
if ((sys.version_info[0] < 3) or
(sys.version_info[0] == 3 and sys.version_info[1] < 8)):
print('rpy2 is no longer supporting Python < 3.8.'
'Consider using an older rpy2 release when using an '
'older Python release.')
sys.exit(1)
import enum
import importlib
import os
import shutil
import subprocess
import tempfile
import typing
import warnings
from setuptools import dist, Extension, find_namespace_packages, setup
from setuptools._distutils.ccompiler import new_compiler
from setuptools._distutils.sysconfig import customize_compiler
from setuptools._distutils.errors import CCompilerError, DistutilsExecError, DistutilsPlatformError
import setuptools.command.build
import setuptools.command.build_ext
import setuptools.command.install
link_args = ['-static-libgcc',
'-static-libstdc++',
'-Wl,-Bstatic,--whole-archive',
'-lwinpthread',
'-Wl,--no-whole-archive']
class build_ext(setuptools.command.build_ext.build_ext):
def build_extensions(self):
if self.compiler.compiler_type == 'mingw32':
for e in self.extensions:
e.extra_link_args = link_args
super().build_extensions()
# spec = importlib.util.spec_from_file_location('rpy2', './rpy2/__init__.py')
# rpy2 = importlib.util.module_from_spec(spec)
# sys.modules['rpy2'] = rpy2
# spec.loader.exec_module(rpy2)
spec = importlib.util.spec_from_file_location('situation', 'src/rpy2/situation/__init__.py')
situation = importlib.util.module_from_spec(spec)
sys.modules['situation'] = situation
spec.loader.exec_module(situation)
PACKAGE_NAME = 'rpy2'
package_prefix='src'
R_MIN_VERSION = (3, 5)
def cmp_version(x, y):
if (x[0] < y[0]):
return -1
if (x[0] > y[0]):
return 1
if (x[0] == y[0]):
if len(x) == 1 or len(y) == 1:
return 0
return cmp_version(x[1:], y[1:])
class COMPILATION_STATUS(enum.Enum):
COMPILE_ERROR=('unable to compile R C extensions - missing headers '
'or R not compiled as a library ?')
NO_COMPILER=('unable to compile sqlite3 C extensions - '
'no c compiler?')
PLATFORM_ERROR=('unable to compile R C extensions - platform error')
OK = None
NO_R='No R in the PATH, or R_HOME defined.'
RFLAGS_ERROR='Unable to get R compilation flags'
def get_c_extension_status(libraries=['R'], include_dirs=None,
library_dirs=None):
if os.name == 'nt':
c_code = ('int main(int argc, char **argv) { return 0; }')
else:
c_code = ('#include <Rinterface.h>\n\n'
'int main(int argc, char **argv) { return 0; }')
tmp_dir = tempfile.mkdtemp(prefix='tmp_pw_r_')
bin_file = os.path.join(tmp_dir, 'test_pw_r')
src_file = bin_file + '.c'
with open(src_file, 'w') as fh:
fh.write(c_code)
compiler = new_compiler()
customize_compiler(compiler)
try:
compiler.link_executable(
compiler.compile([src_file], output_dir=tmp_dir,
include_dirs=include_dirs),
bin_file,
libraries=libraries,
library_dirs=library_dirs)
except CCompilerError as cce:
status = COMPILATION_STATUS.COMPILE_ERROR
print(cce)
except DistutilsExecError as dee:
status = COMPILATION_STATUS.NO_COMPILER
print(dee)
except DistutilsPlatformError as dpe:
status = COMPILATION_STATUS.PLATFORM_ERROR
print(dpe)
else:
status = COMPILATION_STATUS.OK
shutil.rmtree(tmp_dir)
return status
def get_r_c_extension_status(r_home: typing.Optional[str],
force_ok: bool = False):
if r_home is None:
return COMPILATION_STATUS.NO_R
c_ext = situation.CExtensionOptions()
try:
c_ext.add_lib(
*situation.get_r_flags(r_home, '--ldflags')
)
c_ext.add_include(
*situation.get_r_flags(r_home, '--cppflags')
)
except subprocess.CalledProcessError as cpe:
warnings.warn(str(cpe))
return COMPILATION_STATUS.RFLAGS_ERROR
if force_ok:
status = COMPILATION_STATUS.OK
else:
status = get_c_extension_status(libraries=c_ext.libraries,
include_dirs=c_ext.include_dirs,
library_dirs=c_ext.library_dirs)
return status
class install(setuptools.command.install.install):
def run(self):
if r_home:
print(
'LD_LIBRARY_PATH in R: {}'.format(
situation.r_ld_library_path_from_subprocess(r_home)
)
)
super().run()
r_home = situation.get_r_home()
cffi_mode = situation.get_cffi_mode()
c_extension_status = get_r_c_extension_status(
r_home,
force_ok=os.environ.get('RPY2_API_FORCE') == 'True'
)
ext_modules = []
_CFFI_BUILD_PATH='src/rpy2/rinterface_lib/_rinterface_cffi_build.py'
if cffi_mode == situation.CFFI_MODE.ABI:
cffi_modules = [f'{_CFFI_BUILD_PATH}:ffibuilder_abi']
elif cffi_mode == situation.CFFI_MODE.API:
if c_extension_status != COMPILATION_STATUS.OK:
print('API mode requested but %s' % c_extension_status.value)
sys.exit(1)
cffi_modules = [f'{_CFFI_BUILD_PATH}:ffibuilder_api']
ext_modules = [
Extension('rpy2.rinterface_lib._bufferprotocol',
['src/rpy2/rinterface_lib/_bufferprotocol.c'])
]
elif cffi_mode == situation.CFFI_MODE.BOTH:
if c_extension_status != COMPILATION_STATUS.OK:
print('API mode requested but %s' % c_extension_status.value)
sys.exit(1)
cffi_modules = [f'{_CFFI_BUILD_PATH}:ffibuilder_abi',
f'{_CFFI_BUILD_PATH}:ffibuilder_api']
elif cffi_mode == situation.CFFI_MODE.ANY:
# default interface
cffi_modules = [f'{_CFFI_BUILD_PATH}:ffibuilder_abi']
if c_extension_status == COMPILATION_STATUS.OK:
cffi_modules.append(f'{_CFFI_BUILD_PATH}:ffibuilder_api')
ext_modules = [
Extension('rpy2.rinterface_lib._bufferprotocol',
['src/rpy2/rinterface_lib/_bufferprotocol.c'])
]
else:
# This should never happen.
raise ValueError('Invalid value for cffi_mode')
class build(setuptools.command.build.build):
def run(self):
print('cffi mode: %s' % cffi_mode)
super().run()
print('---')
print(cffi_mode)
if cffi_mode in (situation.CFFI_MODE.ABI,
situation.CFFI_MODE.BOTH,
situation.CFFI_MODE.ANY):
print('ABI mode interface built.')
if cffi_mode in (situation.CFFI_MODE.API,
situation.CFFI_MODE.BOTH):
print('API mode interface built.')
if cffi_mode == situation.CFFI_MODE.ANY:
if c_extension_status == COMPILATION_STATUS.OK:
print('API mode interface built.')
else:
print('API mode interface not built because: %s' % c_extension_status)
print('To change the API/ABI build mode, set or modify the environment '
'variable RPY2_CFFI_MODE.')
pack_dir = {PACKAGE_NAME: os.path.join(package_prefix, 'rpy2')}
setup(
cffi_modules=cffi_modules,
ext_modules=ext_modules,
cmdclass={'build': build, 'build_ext': build_ext},
zip_safe=False
)
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