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38 lines
1.2 KiB
38 lines
1.2 KiB
import abc |
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from typing import Optional |
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from pip._vendor.pkg_resources import Distribution |
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from pip._internal.index.package_finder import PackageFinder |
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from pip._internal.req import InstallRequirement |
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class AbstractDistribution(metaclass=abc.ABCMeta): |
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"""A base class for handling installable artifacts. |
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The requirements for anything installable are as follows: |
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- we must be able to determine the requirement name |
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(or we can't correctly handle the non-upgrade case). |
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- for packages with setup requirements, we must also be able |
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to determine their requirements without installing additional |
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packages (for the same reason as run-time dependencies) |
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- we must be able to create a Distribution object exposing the |
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above metadata. |
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""" |
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def __init__(self, req: InstallRequirement) -> None: |
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super().__init__() |
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self.req = req |
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@abc.abstractmethod |
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def get_pkg_resources_distribution(self) -> Optional[Distribution]: |
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raise NotImplementedError() |
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@abc.abstractmethod |
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def prepare_distribution_metadata( |
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self, finder: PackageFinder, build_isolation: bool |
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) -> None: |
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raise NotImplementedError()
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