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Diffstat (limited to '.venv/lib/python3.12/site-packages/pip/_vendor/cachecontrol/cache.py')
-rw-r--r-- | .venv/lib/python3.12/site-packages/pip/_vendor/cachecontrol/cache.py | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/pip/_vendor/cachecontrol/cache.py b/.venv/lib/python3.12/site-packages/pip/_vendor/cachecontrol/cache.py new file mode 100644 index 00000000..91598e92 --- /dev/null +++ b/.venv/lib/python3.12/site-packages/pip/_vendor/cachecontrol/cache.py @@ -0,0 +1,75 @@ +# SPDX-FileCopyrightText: 2015 Eric Larson +# +# SPDX-License-Identifier: Apache-2.0 + +""" +The cache object API for implementing caches. The default is a thread +safe in-memory dictionary. +""" + +from __future__ import annotations + +from threading import Lock +from typing import IO, TYPE_CHECKING, MutableMapping + +if TYPE_CHECKING: + from datetime import datetime + + +class BaseCache: + def get(self, key: str) -> bytes | None: + raise NotImplementedError() + + def set( + self, key: str, value: bytes, expires: int | datetime | None = None + ) -> None: + raise NotImplementedError() + + def delete(self, key: str) -> None: + raise NotImplementedError() + + def close(self) -> None: + pass + + +class DictCache(BaseCache): + def __init__(self, init_dict: MutableMapping[str, bytes] | None = None) -> None: + self.lock = Lock() + self.data = init_dict or {} + + def get(self, key: str) -> bytes | None: + return self.data.get(key, None) + + def set( + self, key: str, value: bytes, expires: int | datetime | None = None + ) -> None: + with self.lock: + self.data.update({key: value}) + + def delete(self, key: str) -> None: + with self.lock: + if key in self.data: + self.data.pop(key) + + +class SeparateBodyBaseCache(BaseCache): + """ + In this variant, the body is not stored mixed in with the metadata, but is + passed in (as a bytes-like object) in a separate call to ``set_body()``. + + That is, the expected interaction pattern is:: + + cache.set(key, serialized_metadata) + cache.set_body(key) + + Similarly, the body should be loaded separately via ``get_body()``. + """ + + def set_body(self, key: str, body: bytes) -> None: + raise NotImplementedError() + + def get_body(self, key: str) -> IO[bytes] | None: + """ + Return the body as file-like object. + """ + raise NotImplementedError() |