from __future__ import annotations
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from pip._vendor.packaging.utils import canonicalize_name
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from pip._internal.exceptions import CommandError
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class FormatControl:
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"""Helper for managing formats from which a package can be installed."""
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__slots__ = ["no_binary", "only_binary"]
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def __init__(
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self,
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no_binary: set[str] | None = None,
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only_binary: set[str] | None = None,
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) -> None:
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if no_binary is None:
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no_binary = set()
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if only_binary is None:
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only_binary = set()
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self.no_binary = no_binary
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self.only_binary = only_binary
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def __eq__(self, other: object) -> bool:
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if not isinstance(other, self.__class__):
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return NotImplemented
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if self.__slots__ != other.__slots__:
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return False
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return all(getattr(self, k) == getattr(other, k) for k in self.__slots__)
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def __repr__(self) -> str:
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return f"{self.__class__.__name__}({self.no_binary}, {self.only_binary})"
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@staticmethod
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def handle_mutual_excludes(value: str, target: set[str], other: set[str]) -> None:
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if value.startswith("-"):
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raise CommandError(
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"--no-binary / --only-binary option requires 1 argument."
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)
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new = value.split(",")
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while ":all:" in new:
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other.clear()
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target.clear()
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target.add(":all:")
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del new[: new.index(":all:") + 1]
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# Without a none, we want to discard everything as :all: covers it
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if ":none:" not in new:
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return
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for name in new:
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if name == ":none:":
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target.clear()
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continue
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name = canonicalize_name(name)
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other.discard(name)
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target.add(name)
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def get_allowed_formats(self, canonical_name: str) -> frozenset[str]:
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result = {"binary", "source"}
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if canonical_name in self.only_binary:
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result.discard("source")
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elif canonical_name in self.no_binary:
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result.discard("binary")
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elif ":all:" in self.only_binary:
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result.discard("source")
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elif ":all:" in self.no_binary:
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result.discard("binary")
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return frozenset(result)
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def disallow_binaries(self) -> None:
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self.handle_mutual_excludes(
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":all:",
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self.no_binary,
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self.only_binary,
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)
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