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pantsbuild / pants / 22285099215

22 Feb 2026 08:52PM UTC coverage: 75.854% (-17.1%) from 92.936%
22285099215

Pull #23121

github

web-flow
Merge c7299df9c into ba8359840
Pull Request #23121: fix issue with optional fields in dependency validator

28 of 29 new or added lines in 2 files covered. (96.55%)

11174 existing lines in 400 files now uncovered.

53694 of 70786 relevant lines covered (75.85%)

1.88 hits per line

Source File
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85.71
/src/python/pants/backend/python/macros/common_fields.py
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# Copyright 2022 Pants project contributors (see CONTRIBUTORS.md).
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# Licensed under the Apache License, Version 2.0 (see LICENSE).
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from __future__ import annotations
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from collections.abc import Iterable
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from typing import ClassVar
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from pants.backend.python.target_types import (
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    PythonRequirementModulesField,
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    PythonRequirementTarget,
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    PythonRequirementTypeStubModulesField,
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    normalize_module_mapping,
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)
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from pants.engine.addresses import Address
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from pants.engine.target import DictStringToStringSequenceField, OverridesField
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from pants.util.frozendict import FrozenDict
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from pants.util.strutil import help_text
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class ModuleMappingField(DictStringToStringSequenceField):
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    alias = "module_mapping"
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    help = help_text(
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        f"""
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        A mapping of requirement names to a list of the modules they provide.
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        For example, `{{"ansicolors": ["colors"]}}`.
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        Any unspecified requirements will use a default. See the
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        `{PythonRequirementModulesField.alias}` field from the `{PythonRequirementTarget.alias}`
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        target for more information.
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        """
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    )
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    value: FrozenDict[str, tuple[str, ...]]
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    default: ClassVar[FrozenDict[str, tuple[str, ...]]] = FrozenDict()
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    @classmethod
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    def compute_value(  # type: ignore[override]
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        cls, raw_value: dict[str, Iterable[str]], address: Address
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    ) -> FrozenDict[str, tuple[str, ...]]:
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        value_or_default = super().compute_value(raw_value, address)
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        return normalize_module_mapping(value_or_default)
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class TypeStubsModuleMappingField(DictStringToStringSequenceField):
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    alias = "type_stubs_module_mapping"
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    help = help_text(
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        f"""
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        A mapping of type-stub requirement names to a list of the modules they provide.
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        For example, `{{"types-requests": ["requests"]}}`.
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        If the requirement is not specified _and_ its name looks like a type stub, Pants will
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        use a default. See the `{PythonRequirementTypeStubModulesField.alias}` field from the
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        `{PythonRequirementTarget.alias}` target for more information.
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        """
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    )
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    value: FrozenDict[str, tuple[str, ...]]
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    default: ClassVar[FrozenDict[str, tuple[str, ...]]] = FrozenDict()
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    @classmethod
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    def compute_value(  # type: ignore[override]
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        cls, raw_value: dict[str, Iterable[str]], address: Address
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    ) -> FrozenDict[str, tuple[str, ...]]:
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        value_or_default = super().compute_value(raw_value, address)
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        return normalize_module_mapping(value_or_default)
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class RequirementsOverrideField(OverridesField):
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    help = help_text(
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        """
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        Override the field values for generated `python_requirement` targets.
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        Expects a dictionary of requirements to a dictionary for the
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        overrides. You may either use a string for a single requirement,
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        or a string tuple for multiple requirements. Each override is a dictionary of
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        field names to the overridden value.
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        For example:
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            overrides={
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                "django": {"dependencies": ["#setuptools"]},
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                "ansicolors": {"description": "pretty colors"]},
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                ("ansicolors, "django"): {"tags": ["overridden"]},
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            }
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        Every overridden requirement is validated to be generated by this target.
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        You can specify the same requirement in multiple keys, so long as you don't
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        override the same field more than one time for the requirement.
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        """
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    )
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