class PathSource:
def __init__(self, path: str) -> None:
self.path = Path(path)
@property
def _normalized_path(self) -> Path:
return self.path.resolve()
def sha256(self) -> str:
return self._normalized_path.sha256_sum()
def nix_expression(self) -> str:
return " ".join([
"builtins.fetchurl {",
f'url = "file://{self._normalized_path}";',
f'sha256 = "{self.sha256()}";',
"}",
])
def build_wheel(target_directory: Path, requirement: str) -> str:
logger = StreamLogger(sys.stdout)
requirement_parser = RequirementParser(logger=logger)
package_directory: str = str(ROOT / "unittests" / "data")
escaped_requirement = shlex.quote(requirement)
target_directory = target_directory.resolve()
with tempfile.TemporaryDirectory() as build_directory:
os.chdir(str(build_directory))
nix = Nix(logger=logger)
nix.shell(
command=
f"pip wheel {escaped_requirement} --find-links {str(package_directory)} --no-deps",
derivation_path=DERIVATION_PATH,
nix_arguments=dict(),
)
try:
parsed_requirement = requirement_parser.parse(requirement)
except ParsingFailed:
for path in os.listdir("."):
if path.endswith(".whl"):
wheel_path = path
break
else:
raise Exception("Build process did not produce .whl file")
else:
for path in os.listdir("."):
if path.endswith(".whl") and parsed_requirement.name() in path:
wheel_path = path
break
else:
raise Exception("Build process did not produce .whl file")
target_file_name = os.path.basename(wheel_path)
target_path = target_directory / target_file_name
shutil.move(wheel_path, str(target_path))
return target_file_name
def find_root(start: Path = Path(".")) -> Path:
absolute_location = start.resolve()
if (absolute_location / ".git").is_directory():
return absolute_location
else:
return find_root(absolute_location / "..")