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55 lines
1.7 KiB
Python
55 lines
1.7 KiB
Python
5 years ago
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from pip._vendor.resolvelib.providers import AbstractProvider
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from pip._internal.utils.typing import MYPY_CHECK_RUNNING
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if MYPY_CHECK_RUNNING:
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from typing import Any, Optional, Sequence, Tuple, Union
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from pip._internal.req.req_install import InstallRequirement
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from .base import Requirement, Candidate
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from .factory import Factory
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class PipProvider(AbstractProvider):
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def __init__(
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self,
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factory, # type: Factory
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ignore_dependencies, # type: bool
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):
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# type: (...) -> None
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self._factory = factory
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self._ignore_dependencies = ignore_dependencies
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def get_install_requirement(self, c):
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# type: (Candidate) -> Optional[InstallRequirement]
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return c.get_install_requirement()
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def identify(self, dependency):
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# type: (Union[Requirement, Candidate]) -> str
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return dependency.name
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def get_preference(
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self,
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resolution, # type: Optional[Candidate]
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candidates, # type: Sequence[Candidate]
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information # type: Sequence[Tuple[Requirement, Candidate]]
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):
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# type: (...) -> Any
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# Use the "usual" value for now
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return len(candidates)
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def find_matches(self, requirement):
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# type: (Requirement) -> Sequence[Candidate]
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return requirement.find_matches()
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def is_satisfied_by(self, requirement, candidate):
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# type: (Requirement, Candidate) -> bool
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return requirement.is_satisfied_by(candidate)
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def get_dependencies(self, candidate):
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# type: (Candidate) -> Sequence[Requirement]
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if self._ignore_dependencies:
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return []
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return candidate.get_dependencies()
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