Current File : //opt/alt/python35/lib/python3.5/site-packages/pip/_internal/operations/build/wheel.py
import logging
import os
from pip._internal.utils.subprocess import runner_with_spinner_message
from pip._internal.utils.typing import MYPY_CHECK_RUNNING
if MYPY_CHECK_RUNNING:
from typing import List, Optional
from pip._vendor.pep517.wrappers import Pep517HookCaller
logger = logging.getLogger(__name__)
def build_wheel_pep517(
name, # type: str
backend, # type: Pep517HookCaller
metadata_directory, # type: str
build_options, # type: List[str]
tempd, # type: str
):
# type: (...) -> Optional[str]
"""Build one InstallRequirement using the PEP 517 build process.
Returns path to wheel if successfully built. Otherwise, returns None.
"""
assert metadata_directory is not None
if build_options:
# PEP 517 does not support --build-options
logger.error('Cannot build wheel for %s using PEP 517 when '
'--build-option is present', name)
return None
try:
logger.debug('Destination directory: %s', tempd)
runner = runner_with_spinner_message(
'Building wheel for {} (PEP 517)'.format(name)
)
with backend.subprocess_runner(runner):
wheel_name = backend.build_wheel(
tempd,
metadata_directory=metadata_directory,
)
except Exception:
logger.error('Failed building wheel for %s', name)
return None
return os.path.join(tempd, wheel_name)
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