def get_build_info(folder):
toml_file = folder.join("pyproject.toml")
# as per https://www.python.org/dev/peps/pep-0517/
def abort(message):
reporter.error("{} inside {}".format(message, toml_file))
raise SystemExit(1)
if not toml_file.exists():
reporter.error("missing {}".format(toml_file))
raise SystemExit(1)
config_data = get_py_project_toml(toml_file)
if "build-system" not in config_data:
abort("build-system section missing")
build_system = config_data["build-system"]
if "requires" not in build_system:
abort("missing requires key at build-system section")
if "build-backend" not in build_system:
abort("missing build-backend key at build-system section")
requires = build_system["requires"]
if not isinstance(requires, list) or not all(
isinstance(i, six.text_type) for i in requires):
abort("requires key at build-system section must be a list of string")
backend = build_system["build-backend"]
if not isinstance(backend, six.text_type):
abort("build-backend key at build-system section must be a string")
args = backend.split(":")
module = args[0]
obj = args[1] if len(args) > 1 else ""
backend_paths = build_system.get("backend-path", [])
if not isinstance(backend_paths, list):
abort(
"backend-path key at build-system section must be a list, if specified"
)
backend_paths = [folder.join(p) for p in backend_paths]
normalized_folder = os.path.normcase(str(folder.realpath()))
normalized_paths = (os.path.normcase(str(path.realpath()))
for path in backend_paths)
if not all(
os.path.commonprefix((normalized_folder,
path)) == normalized_folder
for path in normalized_paths):
abort("backend-path must exist in the project root")
return BuildInfo(requires, module, obj, backend_paths)
def get_build_info(folder):
toml_file = folder.join("pyproject.toml")
# as per https://www.python.org/dev/peps/pep-0517/
def abort(message):
reporter.error("{} inside {}".format(message, toml_file))
raise SystemExit(1)
if not toml_file.exists():
reporter.error("missing {}".format(toml_file))
raise SystemExit(1)
config_data = get_py_project_toml(toml_file)
if "build-system" not in config_data:
abort("build-system section missing")
build_system = config_data["build-system"]
if "requires" not in build_system:
abort("missing requires key at build-system section")
if "build-backend" not in build_system:
abort("missing build-backend key at build-system section")
requires = build_system["requires"]
if not isinstance(requires, list) or not all(
isinstance(i, six.text_type) for i in requires
):
abort("requires key at build-system section must be a list of string")
backend = build_system["build-backend"]
if not isinstance(backend, six.text_type):
abort("build-backend key at build-system section must be a string")
args = backend.split(":")
module = args[0]
obj = args[1] if len(args) > 1 else ""
return BuildInfo(requires, module, obj)
