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"""The purpose of this module is implement PEP 621 validations that are
difficult to express as a JSON Schema (or that are not supported by the current
JSON Schema library).
"""
from inspect import cleandoc
from typing import Mapping, TypeVar
from .error_reporting import ValidationError
T = TypeVar("T", bound=Mapping)
class RedefiningStaticFieldAsDynamic(ValidationError):
_DESC = """According to PEP 621:
Build back-ends MUST raise an error if the metadata specifies a field
statically as well as being listed in dynamic.
"""
__doc__ = _DESC
_URL = (
"https://packaging.python.org/en/latest/specifications/"
"pyproject-toml/#dynamic"
)
class IncludedDependencyGroupMustExist(ValidationError):
_DESC = """An included dependency group must exist and must not be cyclic.
"""
__doc__ = _DESC
_URL = "https://peps.python.org/pep-0735/"
def validate_project_dynamic(pyproject: T) -> T:
project_table = pyproject.get("project", {})
dynamic = project_table.get("dynamic", [])
for field in dynamic:
if field in project_table:
raise RedefiningStaticFieldAsDynamic(
message=f"You cannot provide a value for `project.{field}` and "
"list it under `project.dynamic` at the same time",
value={
field: project_table[field],
"...": " # ...",
"dynamic": dynamic,
},
name=f"data.project.{field}",
definition={
"description": cleandoc(RedefiningStaticFieldAsDynamic._DESC),
"see": RedefiningStaticFieldAsDynamic._URL,
},
rule="PEP 621",
)
return pyproject
def validate_include_depenency(pyproject: T) -> T:
dependency_groups = pyproject.get("dependency-groups", {})
for key, value in dependency_groups.items():
for each in value:
if (
isinstance(each, dict)
and (include_group := each.get("include-group"))
and include_group not in dependency_groups
):
raise IncludedDependencyGroupMustExist(
message=f"The included dependency group {include_group} doesn't exist",
value=each,
name=f"data.dependency_groups.{key}",
definition={
"description": cleandoc(IncludedDependencyGroupMustExist._DESC),
"see": IncludedDependencyGroupMustExist._URL,
},
rule="PEP 735",
)
# TODO: check for `include-group` cycles (can be conditional to graphlib)
return pyproject
EXTRA_VALIDATIONS = (validate_project_dynamic, validate_include_depenency)
|
