329 lines
13 KiB
Python
329 lines
13 KiB
Python
import os
|
|
import sys
|
|
import itertools
|
|
from importlib.machinery import EXTENSION_SUFFIXES
|
|
from distutils.command.build_ext import build_ext as _du_build_ext
|
|
from distutils.file_util import copy_file
|
|
from distutils.ccompiler import new_compiler
|
|
from distutils.sysconfig import customize_compiler, get_config_var
|
|
from distutils.errors import DistutilsError
|
|
from distutils import log
|
|
|
|
from setuptools.extension import Library
|
|
|
|
try:
|
|
# Attempt to use Cython for building extensions, if available
|
|
from Cython.Distutils.build_ext import build_ext as _build_ext
|
|
# Additionally, assert that the compiler module will load
|
|
# also. Ref #1229.
|
|
__import__('Cython.Compiler.Main')
|
|
except ImportError:
|
|
_build_ext = _du_build_ext
|
|
|
|
# make sure _config_vars is initialized
|
|
get_config_var("LDSHARED")
|
|
from distutils.sysconfig import _config_vars as _CONFIG_VARS # noqa
|
|
|
|
|
|
def _customize_compiler_for_shlib(compiler):
|
|
if sys.platform == "darwin":
|
|
# building .dylib requires additional compiler flags on OSX; here we
|
|
# temporarily substitute the pyconfig.h variables so that distutils'
|
|
# 'customize_compiler' uses them before we build the shared libraries.
|
|
tmp = _CONFIG_VARS.copy()
|
|
try:
|
|
# XXX Help! I don't have any idea whether these are right...
|
|
_CONFIG_VARS['LDSHARED'] = (
|
|
"gcc -Wl,-x -dynamiclib -undefined dynamic_lookup")
|
|
_CONFIG_VARS['CCSHARED'] = " -dynamiclib"
|
|
_CONFIG_VARS['SO'] = ".dylib"
|
|
customize_compiler(compiler)
|
|
finally:
|
|
_CONFIG_VARS.clear()
|
|
_CONFIG_VARS.update(tmp)
|
|
else:
|
|
customize_compiler(compiler)
|
|
|
|
|
|
have_rtld = False
|
|
use_stubs = False
|
|
libtype = 'shared'
|
|
|
|
if sys.platform == "darwin":
|
|
use_stubs = True
|
|
elif os.name != 'nt':
|
|
try:
|
|
import dl
|
|
use_stubs = have_rtld = hasattr(dl, 'RTLD_NOW')
|
|
except ImportError:
|
|
pass
|
|
|
|
|
|
def if_dl(s):
|
|
return s if have_rtld else ''
|
|
|
|
|
|
def get_abi3_suffix():
|
|
"""Return the file extension for an abi3-compliant Extension()"""
|
|
for suffix in EXTENSION_SUFFIXES:
|
|
if '.abi3' in suffix: # Unix
|
|
return suffix
|
|
elif suffix == '.pyd': # Windows
|
|
return suffix
|
|
|
|
|
|
class build_ext(_build_ext):
|
|
def run(self):
|
|
"""Build extensions in build directory, then copy if --inplace"""
|
|
old_inplace, self.inplace = self.inplace, 0
|
|
_build_ext.run(self)
|
|
self.inplace = old_inplace
|
|
if old_inplace:
|
|
self.copy_extensions_to_source()
|
|
|
|
def copy_extensions_to_source(self):
|
|
build_py = self.get_finalized_command('build_py')
|
|
for ext in self.extensions:
|
|
fullname = self.get_ext_fullname(ext.name)
|
|
filename = self.get_ext_filename(fullname)
|
|
modpath = fullname.split('.')
|
|
package = '.'.join(modpath[:-1])
|
|
package_dir = build_py.get_package_dir(package)
|
|
dest_filename = os.path.join(package_dir,
|
|
os.path.basename(filename))
|
|
src_filename = os.path.join(self.build_lib, filename)
|
|
|
|
# Always copy, even if source is older than destination, to ensure
|
|
# that the right extensions for the current Python/platform are
|
|
# used.
|
|
copy_file(
|
|
src_filename, dest_filename, verbose=self.verbose,
|
|
dry_run=self.dry_run
|
|
)
|
|
if ext._needs_stub:
|
|
self.write_stub(package_dir or os.curdir, ext, True)
|
|
|
|
def get_ext_filename(self, fullname):
|
|
so_ext = os.getenv('SETUPTOOLS_EXT_SUFFIX')
|
|
if so_ext:
|
|
filename = os.path.join(*fullname.split('.')) + so_ext
|
|
else:
|
|
filename = _build_ext.get_ext_filename(self, fullname)
|
|
so_ext = get_config_var('EXT_SUFFIX')
|
|
|
|
if fullname in self.ext_map:
|
|
ext = self.ext_map[fullname]
|
|
use_abi3 = getattr(ext, 'py_limited_api') and get_abi3_suffix()
|
|
if use_abi3:
|
|
filename = filename[:-len(so_ext)]
|
|
so_ext = get_abi3_suffix()
|
|
filename = filename + so_ext
|
|
if isinstance(ext, Library):
|
|
fn, ext = os.path.splitext(filename)
|
|
return self.shlib_compiler.library_filename(fn, libtype)
|
|
elif use_stubs and ext._links_to_dynamic:
|
|
d, fn = os.path.split(filename)
|
|
return os.path.join(d, 'dl-' + fn)
|
|
return filename
|
|
|
|
def initialize_options(self):
|
|
_build_ext.initialize_options(self)
|
|
self.shlib_compiler = None
|
|
self.shlibs = []
|
|
self.ext_map = {}
|
|
|
|
def finalize_options(self):
|
|
_build_ext.finalize_options(self)
|
|
self.extensions = self.extensions or []
|
|
self.check_extensions_list(self.extensions)
|
|
self.shlibs = [ext for ext in self.extensions
|
|
if isinstance(ext, Library)]
|
|
if self.shlibs:
|
|
self.setup_shlib_compiler()
|
|
for ext in self.extensions:
|
|
ext._full_name = self.get_ext_fullname(ext.name)
|
|
for ext in self.extensions:
|
|
fullname = ext._full_name
|
|
self.ext_map[fullname] = ext
|
|
|
|
# distutils 3.1 will also ask for module names
|
|
# XXX what to do with conflicts?
|
|
self.ext_map[fullname.split('.')[-1]] = ext
|
|
|
|
ltd = self.shlibs and self.links_to_dynamic(ext) or False
|
|
ns = ltd and use_stubs and not isinstance(ext, Library)
|
|
ext._links_to_dynamic = ltd
|
|
ext._needs_stub = ns
|
|
filename = ext._file_name = self.get_ext_filename(fullname)
|
|
libdir = os.path.dirname(os.path.join(self.build_lib, filename))
|
|
if ltd and libdir not in ext.library_dirs:
|
|
ext.library_dirs.append(libdir)
|
|
if ltd and use_stubs and os.curdir not in ext.runtime_library_dirs:
|
|
ext.runtime_library_dirs.append(os.curdir)
|
|
|
|
def setup_shlib_compiler(self):
|
|
compiler = self.shlib_compiler = new_compiler(
|
|
compiler=self.compiler, dry_run=self.dry_run, force=self.force
|
|
)
|
|
_customize_compiler_for_shlib(compiler)
|
|
|
|
if self.include_dirs is not None:
|
|
compiler.set_include_dirs(self.include_dirs)
|
|
if self.define is not None:
|
|
# 'define' option is a list of (name,value) tuples
|
|
for (name, value) in self.define:
|
|
compiler.define_macro(name, value)
|
|
if self.undef is not None:
|
|
for macro in self.undef:
|
|
compiler.undefine_macro(macro)
|
|
if self.libraries is not None:
|
|
compiler.set_libraries(self.libraries)
|
|
if self.library_dirs is not None:
|
|
compiler.set_library_dirs(self.library_dirs)
|
|
if self.rpath is not None:
|
|
compiler.set_runtime_library_dirs(self.rpath)
|
|
if self.link_objects is not None:
|
|
compiler.set_link_objects(self.link_objects)
|
|
|
|
# hack so distutils' build_extension() builds a library instead
|
|
compiler.link_shared_object = link_shared_object.__get__(compiler)
|
|
|
|
def get_export_symbols(self, ext):
|
|
if isinstance(ext, Library):
|
|
return ext.export_symbols
|
|
return _build_ext.get_export_symbols(self, ext)
|
|
|
|
def build_extension(self, ext):
|
|
ext._convert_pyx_sources_to_lang()
|
|
_compiler = self.compiler
|
|
try:
|
|
if isinstance(ext, Library):
|
|
self.compiler = self.shlib_compiler
|
|
_build_ext.build_extension(self, ext)
|
|
if ext._needs_stub:
|
|
cmd = self.get_finalized_command('build_py').build_lib
|
|
self.write_stub(cmd, ext)
|
|
finally:
|
|
self.compiler = _compiler
|
|
|
|
def links_to_dynamic(self, ext):
|
|
"""Return true if 'ext' links to a dynamic lib in the same package"""
|
|
# XXX this should check to ensure the lib is actually being built
|
|
# XXX as dynamic, and not just using a locally-found version or a
|
|
# XXX static-compiled version
|
|
libnames = dict.fromkeys([lib._full_name for lib in self.shlibs])
|
|
pkg = '.'.join(ext._full_name.split('.')[:-1] + [''])
|
|
return any(pkg + libname in libnames for libname in ext.libraries)
|
|
|
|
def get_outputs(self):
|
|
return _build_ext.get_outputs(self) + self.__get_stubs_outputs()
|
|
|
|
def __get_stubs_outputs(self):
|
|
# assemble the base name for each extension that needs a stub
|
|
ns_ext_bases = (
|
|
os.path.join(self.build_lib, *ext._full_name.split('.'))
|
|
for ext in self.extensions
|
|
if ext._needs_stub
|
|
)
|
|
# pair each base with the extension
|
|
pairs = itertools.product(ns_ext_bases, self.__get_output_extensions())
|
|
return list(base + fnext for base, fnext in pairs)
|
|
|
|
def __get_output_extensions(self):
|
|
yield '.py'
|
|
yield '.pyc'
|
|
if self.get_finalized_command('build_py').optimize:
|
|
yield '.pyo'
|
|
|
|
def write_stub(self, output_dir, ext, compile=False):
|
|
log.info("writing stub loader for %s to %s", ext._full_name,
|
|
output_dir)
|
|
stub_file = (os.path.join(output_dir, *ext._full_name.split('.')) +
|
|
'.py')
|
|
if compile and os.path.exists(stub_file):
|
|
raise DistutilsError(stub_file + " already exists! Please delete.")
|
|
if not self.dry_run:
|
|
f = open(stub_file, 'w')
|
|
f.write(
|
|
'\n'.join([
|
|
"def __bootstrap__():",
|
|
" global __bootstrap__, __file__, __loader__",
|
|
" import sys, os, pkg_resources, importlib.util" +
|
|
if_dl(", dl"),
|
|
" __file__ = pkg_resources.resource_filename"
|
|
"(__name__,%r)"
|
|
% os.path.basename(ext._file_name),
|
|
" del __bootstrap__",
|
|
" if '__loader__' in globals():",
|
|
" del __loader__",
|
|
if_dl(" old_flags = sys.getdlopenflags()"),
|
|
" old_dir = os.getcwd()",
|
|
" try:",
|
|
" os.chdir(os.path.dirname(__file__))",
|
|
if_dl(" sys.setdlopenflags(dl.RTLD_NOW)"),
|
|
" spec = importlib.util.spec_from_file_location(",
|
|
" __name__, __file__)",
|
|
" mod = importlib.util.module_from_spec(spec)",
|
|
" spec.loader.exec_module(mod)",
|
|
" finally:",
|
|
if_dl(" sys.setdlopenflags(old_flags)"),
|
|
" os.chdir(old_dir)",
|
|
"__bootstrap__()",
|
|
"" # terminal \n
|
|
])
|
|
)
|
|
f.close()
|
|
if compile:
|
|
from distutils.util import byte_compile
|
|
|
|
byte_compile([stub_file], optimize=0,
|
|
force=True, dry_run=self.dry_run)
|
|
optimize = self.get_finalized_command('install_lib').optimize
|
|
if optimize > 0:
|
|
byte_compile([stub_file], optimize=optimize,
|
|
force=True, dry_run=self.dry_run)
|
|
if os.path.exists(stub_file) and not self.dry_run:
|
|
os.unlink(stub_file)
|
|
|
|
|
|
if use_stubs or os.name == 'nt':
|
|
# Build shared libraries
|
|
#
|
|
def link_shared_object(
|
|
self, objects, output_libname, output_dir=None, libraries=None,
|
|
library_dirs=None, runtime_library_dirs=None, export_symbols=None,
|
|
debug=0, extra_preargs=None, extra_postargs=None, build_temp=None,
|
|
target_lang=None):
|
|
self.link(
|
|
self.SHARED_LIBRARY, objects, output_libname,
|
|
output_dir, libraries, library_dirs, runtime_library_dirs,
|
|
export_symbols, debug, extra_preargs, extra_postargs,
|
|
build_temp, target_lang
|
|
)
|
|
else:
|
|
# Build static libraries everywhere else
|
|
libtype = 'static'
|
|
|
|
def link_shared_object(
|
|
self, objects, output_libname, output_dir=None, libraries=None,
|
|
library_dirs=None, runtime_library_dirs=None, export_symbols=None,
|
|
debug=0, extra_preargs=None, extra_postargs=None, build_temp=None,
|
|
target_lang=None):
|
|
# XXX we need to either disallow these attrs on Library instances,
|
|
# or warn/abort here if set, or something...
|
|
# libraries=None, library_dirs=None, runtime_library_dirs=None,
|
|
# export_symbols=None, extra_preargs=None, extra_postargs=None,
|
|
# build_temp=None
|
|
|
|
assert output_dir is None # distutils build_ext doesn't pass this
|
|
output_dir, filename = os.path.split(output_libname)
|
|
basename, ext = os.path.splitext(filename)
|
|
if self.library_filename("x").startswith('lib'):
|
|
# strip 'lib' prefix; this is kludgy if some platform uses
|
|
# a different prefix
|
|
basename = basename[3:]
|
|
|
|
self.create_static_lib(
|
|
objects, basename, output_dir, debug, target_lang
|
|
)
|