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from __future__ import absolute_import, print_function
import os
import shutil
import tempfile
from .Dependencies import cythonize, extended_iglob
from ..Utils import is_package_dir
from ..Compiler import Options
try:
import multiprocessing
parallel_compiles = int(multiprocessing.cpu_count() * 1.5)
except ImportError:
multiprocessing = None
parallel_compiles = 0
class _FakePool(object):
def map_async(self, func, args):
try:
from itertools import imap
except ImportError:
imap=map
for _ in imap(func, args):
pass
def close(self):
pass
def terminate(self):
pass
def join(self):
pass
def find_package_base(path):
base_dir, package_path = os.path.split(path)
while is_package_dir(base_dir):
base_dir, parent = os.path.split(base_dir)
package_path = '%s/%s' % (parent, package_path)
return base_dir, package_path
def cython_compile(path_pattern, options):
all_paths = map(os.path.abspath, extended_iglob(path_pattern))
_cython_compile_files(all_paths, options)
def _cython_compile_files(all_paths, options):
pool = None
try:
for path in all_paths:
if options.build_inplace:
base_dir = path
while not os.path.isdir(base_dir) or is_package_dir(base_dir):
base_dir = os.path.dirname(base_dir)
else:
base_dir = None
if os.path.isdir(path):
# recursively compiling a package
paths = [os.path.join(path, '**', '*.{py,pyx}')]
else:
# assume it's a file(-like thing)
paths = [path]
ext_modules = cythonize(
paths,
nthreads=options.parallel,
exclude_failures=options.keep_going,
exclude=options.excludes,
compiler_directives=options.directives,
compile_time_env=options.compile_time_env,
force=options.force,
quiet=options.quiet,
depfile=options.depfile,
language=options.language,
**options.options)
if ext_modules and options.build:
if len(ext_modules) > 1 and options.parallel > 1:
if pool is None:
try:
pool = multiprocessing.Pool(options.parallel)
except OSError:
pool = _FakePool()
pool.map_async(run_distutils, [
(base_dir, [ext]) for ext in ext_modules])
else:
run_distutils((base_dir, ext_modules))
except:
if pool is not None:
pool.terminate()
raise
else:
if pool is not None:
pool.close()
pool.join()
def run_distutils(args):
try:
from distutils.core import setup
except ImportError:
try:
from setuptools import setup
except ImportError:
raise ImportError("'distutils' is not available. Please install 'setuptools' for binary builds.")
base_dir, ext_modules = args
script_args = ['build_ext', '-i']
cwd = os.getcwd()
temp_dir = None
try:
if base_dir:
os.chdir(base_dir)
temp_dir = tempfile.mkdtemp(dir=base_dir)
script_args.extend(['--build-temp', temp_dir])
setup(
script_name='setup.py',
script_args=script_args,
ext_modules=ext_modules,
)
finally:
if base_dir:
os.chdir(cwd)
if temp_dir and os.path.isdir(temp_dir):
shutil.rmtree(temp_dir)
def create_args_parser():
from argparse import ArgumentParser, RawDescriptionHelpFormatter
from ..Compiler.CmdLine import ParseDirectivesAction, ParseOptionsAction, ParseCompileTimeEnvAction
parser = ArgumentParser(
formatter_class=RawDescriptionHelpFormatter,
epilog="""\
Environment variables:
CYTHON_FORCE_REGEN: if set to 1, forces cythonize to regenerate the output files regardless
of modification times and changes.
Environment variables accepted by setuptools are supported to configure the C compiler and build:
https://setuptools.pypa.io/en/latest/userguide/ext_modules.html#compiler-and-linker-options"""
)
parser.add_argument('-X', '--directive', metavar='NAME=VALUE,...',
dest='directives', default={}, type=str,
action=ParseDirectivesAction,
help='set a compiler directive')
parser.add_argument('-E', '--compile-time-env', metavar='NAME=VALUE,...',
dest='compile_time_env', default={}, type=str,
action=ParseCompileTimeEnvAction,
help='set a compile time environment variable')
parser.add_argument('-s', '--option', metavar='NAME=VALUE',
dest='options', default={}, type=str,
action=ParseOptionsAction,
help='set a cythonize option')
parser.add_argument('-2', dest='language_level', action='store_const', const=2, default=None,
help='use Python 2 syntax mode by default')
parser.add_argument('-3', dest='language_level', action='store_const', const=3,
help='use Python 3 syntax mode by default')
parser.add_argument('--3str', dest='language_level', action='store_const', const='3str',
help='use Python 3 syntax mode by default')
parser.add_argument('-+', '--cplus', dest='language', action='store_const', const='c++', default=None,
help='Compile as C++ rather than C')
parser.add_argument('-a', '--annotate', action='store_const', const='default', dest='annotate',
help='Produce a colorized HTML version of the source.')
parser.add_argument('--annotate-fullc', action='store_const', const='fullc', dest='annotate',
help='Produce a colorized HTML version of the source '
'which includes entire generated C/C++-code.')
parser.add_argument('-x', '--exclude', metavar='PATTERN', dest='excludes',
action='append', default=[],
help='exclude certain file patterns from the compilation')
parser.add_argument('-b', '--build', dest='build', action='store_true', default=None,
help='build extension modules using distutils/setuptools')
parser.add_argument('-i', '--inplace', dest='build_inplace', action='store_true', default=None,
help='build extension modules in place using distutils/setuptools (implies -b)')
parser.add_argument('-j', '--parallel', dest='parallel', metavar='N',
type=int, default=parallel_compiles,
help=('run builds in N parallel jobs (default: %d)' %
parallel_compiles or 1))
parser.add_argument('-f', '--force', dest='force', action='store_true', default=None,
help='force recompilation')
parser.add_argument('-q', '--quiet', dest='quiet', action='store_true', default=None,
help='be less verbose during compilation')
parser.add_argument('--lenient', dest='lenient', action='store_true', default=None,
help='increase Python compatibility by ignoring some compile time errors')
parser.add_argument('-k', '--keep-going', dest='keep_going', action='store_true', default=None,
help='compile as much as possible, ignore compilation failures')
parser.add_argument('--no-docstrings', dest='no_docstrings', action='store_true', default=None,
help='strip docstrings')
parser.add_argument('-M', '--depfile', action='store_true', help='produce depfiles for the sources')
parser.add_argument('sources', nargs='*')
return parser
def parse_args_raw(parser, args):
options, unknown = parser.parse_known_args(args)
sources = options.sources
# if positional arguments were interspersed
# some of them are in unknown
for option in unknown:
if option.startswith('-'):
parser.error("unknown option "+option)
else:
sources.append(option)
del options.sources
return (options, sources)
def parse_args(args):
parser = create_args_parser()
options, args = parse_args_raw(parser, args)
if not args:
parser.error("no source files provided")
if options.build_inplace:
options.build = True
if multiprocessing is None:
options.parallel = 0
if options.language_level:
assert options.language_level in (2, 3, '3str')
options.options['language_level'] = options.language_level
if options.lenient:
# increase Python compatibility by ignoring compile time errors
Options.error_on_unknown_names = False
Options.error_on_uninitialized = False
if options.annotate:
Options.annotate = options.annotate
if options.no_docstrings:
Options.docstrings = False
return options, args
def main(args=None):
options, paths = parse_args(args)
all_paths = []
for path in paths:
expanded_path = [os.path.abspath(p) for p in extended_iglob(path)]
if not expanded_path:
import sys
print("{}: No such file or directory: '{}'".format(sys.argv[0], path), file=sys.stderr)
sys.exit(1)
all_paths.extend(expanded_path)
_cython_compile_files(all_paths, options)
if __name__ == '__main__':
main()
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