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130 | class Rust(ProjectMetadataWriter):
"""Rust config file handler parsed from Cargo.toml."""
def __init__(self, path: Path):
"""Rust config file handler parsed from Cargo.toml.
See [somesy.core.writer.ProjectMetadataWriter.__init__][].
"""
self._section = ["package"]
mappings: FieldKeyMapping = {
"maintainers": IgnoreKey(),
}
super().__init__(path, create_if_not_exists=False, direct_mappings=mappings)
def _load(self) -> None:
"""Load Cargo.toml file."""
with open(self.path) as f:
self._data = load(f)
def _validate(self) -> None:
"""Validate rust config using pydantic class.
In order to preserve toml comments and structure, tomlkit library is used.
Pydantic class only used for validation.
"""
config = dict(self._get_property([]))
logger.debug(
f"Validating config using {RustConfig.__name__}: {pretty_repr(config)}"
)
RustConfig(**config)
def save(self, path: Optional[Path] = None) -> None:
"""Save the Cargo.toml file."""
path = path or self.path
with open(path, "w") as f:
dump(self._data, f)
def _get_property(
self, key: Union[str, List[str], IgnoreKey], *, remove: bool = False, **kwargs
) -> Optional[Any]:
"""Get a property from the Cargo.toml file."""
if isinstance(key, IgnoreKey):
return None
key_path = [key] if isinstance(key, str) else key
full_path = self._section + key_path
return super()._get_property(full_path, remove=remove, **kwargs)
def _set_property(self, key: Union[str, List[str], IgnoreKey], value: Any) -> None:
"""Set a property in the Cargo.toml file."""
if isinstance(key, IgnoreKey):
return
key_path = [key] if isinstance(key, str) else key
if not value: # remove value and clean up the sub-dict
self._get_property(key_path, remove=True)
return
# get the tomlkit object of the section
dat = self._get_property([])
# dig down, create missing nested objects on the fly
curr = dat
for key in key_path[:-1]:
if key not in curr:
curr.add(key, table())
curr = curr[key]
curr[key_path[-1]] = value
@staticmethod
def _from_person(person: Person):
"""Convert project metadata person object to rust string for person format "full name <email>."""
return person.to_name_email_string()
@staticmethod
def _to_person(person_obj: str) -> Person:
"""Parse rust person string to a Person. It has format "full name <email>." but email is optional."""
try:
return Person.from_name_email_string(person_obj)
except (ValueError, AttributeError):
return None
@classmethod
def _parse_people(cls, people: Optional[List[Any]]) -> List[Person]:
"""Return a list of Persons parsed from list of format-specific people representations. to_person can return None, so filter out None values."""
return list(filter(None, map(cls._to_person, people or [])))
@property
def keywords(self) -> Optional[List[str]]:
"""Return the keywords of the project."""
return self._get_property(self._get_key("keywords"))
@keywords.setter
def keywords(self, keywords: List[str]) -> None:
"""Set the keywords of the project."""
validated_keywords = []
for keyword in keywords:
try:
check_keyword(keyword)
validated_keywords.append(keyword)
except ValueError as e:
logger.debug(f"Invalid keyword {keyword}: {e}")
# keyword count should max 5, so delete the rest
if len(validated_keywords) > 5:
validated_keywords = validated_keywords[:5]
self._set_property(self._get_key("keywords"), validated_keywords)
def sync(self, metadata: ProjectMetadata) -> None:
"""Sync the rust config with the project metadata."""
super().sync(metadata)
# if there is a license file, remove the license field
if self._get_key("license_file"):
self.license = None
|