def _generate_metadata(self):
# type: () -> str
"""Invokes metadata generator functions, with the required arguments.
"""
if not self.use_pep517:
assert self.unpacked_source_directory
if not self._check_setup_py_or_cfg_exists():
raise InstallationError(
f'File "setup.py" or "setup.cfg" not found for legacy '
f'project {self}.')
return generate_metadata_legacy(
build_env=self.build_env,
setup_py_path=self.setup_py_path,
source_dir=self.unpacked_source_directory,
isolated=self.isolated,
details=self.name or f"from {self.link}")
assert self.pep517_backend is not None
return generate_metadata(
build_env=self.build_env,
backend=self.pep517_backend,
)
def prepare_metadata(self) -> None:
"""Ensure that project metadata is available.
Under PEP 517 and PEP 660, call the backend hook to prepare the metadata.
Under legacy processing, call setup.py egg-info.
"""
assert self.source_dir
details = self.name or f"from {self.link}"
if self.use_pep517:
assert self.pep517_backend is not None
if (
self.editable
and self.permit_editable_wheels
and self.supports_pyproject_editable()
):
self.metadata_directory = generate_editable_metadata(
build_env=self.build_env,
backend=self.pep517_backend,
details=details,
)
else:
self.metadata_directory = generate_metadata(
build_env=self.build_env,
backend=self.pep517_backend,
details=details,
)
else:
self.metadata_directory = generate_metadata_legacy(
build_env=self.build_env,
setup_py_path=self.setup_py_path,
source_dir=self.unpacked_source_directory,
isolated=self.isolated,
details=details,
)
# Act on the newly generated metadata, based on the name and version.
if not self.name:
self._set_requirement()
else:
self.warn_on_mismatching_name()
self.assert_source_matches_version()
def _generate_metadata(self):
# type: () -> str
"""Invokes metadata generator functions, with the required arguments.
"""
if not self.use_pep517:
assert self.unpacked_source_directory
return generate_metadata_legacy(
build_env=self.build_env,
setup_py_path=self.setup_py_path,
source_dir=self.unpacked_source_directory,
isolated=self.isolated,
details=self.name or "from {}".format(self.link),
)
assert self.pep517_backend is not None
return generate_metadata(build_env=self.build_env,
backend=self.pep517_backend)
def _generate_metadata(self) -> str:
"""Invokes metadata generator functions, with the required arguments."""
if self.use_pep517:
assert self.pep517_backend is not None
try:
return generate_metadata(
build_env=self.build_env,
backend=self.pep517_backend,
)
except HookMissing as e:
raise InstallationError(
f"Project {self} has a pyproject.toml but its build "
f"backend is missing the required {e} hook.")
elif not os.path.exists(self.setup_py_path):
raise InstallationError(
f"File 'setup.py' not found for legacy project {self}.")
return generate_metadata_legacy(
build_env=self.build_env,
setup_py_path=self.setup_py_path,
source_dir=self.unpacked_source_directory,
isolated=self.isolated,
details=self.name or f"from {self.link}",
)
