+++ /dev/null
-# Copyright 2016–2021 Julien Danjou
-# Copyright 2016 Joshua Harlow
-# Copyright 2013-2014 Ray Holder
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-import abc
-import typing
-
-from pip._vendor.tenacity import _utils
-
-if typing.TYPE_CHECKING:
- import threading
-
- from pip._vendor.tenacity import RetryCallState
-
-
-class stop_base(abc.ABC):
- """Abstract base class for stop strategies."""
-
- @abc.abstractmethod
- def __call__(self, retry_state: "RetryCallState") -> bool:
- pass
-
- def __and__(self, other: "stop_base") -> "stop_all":
- return stop_all(self, other)
-
- def __or__(self, other: "stop_base") -> "stop_any":
- return stop_any(self, other)
-
-
-StopBaseT = typing.Union[stop_base, typing.Callable[["RetryCallState"], bool]]
-
-
-class stop_any(stop_base):
- """Stop if any of the stop condition is valid."""
-
- def __init__(self, *stops: stop_base) -> None:
- self.stops = stops
-
- def __call__(self, retry_state: "RetryCallState") -> bool:
- return any(x(retry_state) for x in self.stops)
-
-
-class stop_all(stop_base):
- """Stop if all the stop conditions are valid."""
-
- def __init__(self, *stops: stop_base) -> None:
- self.stops = stops
-
- def __call__(self, retry_state: "RetryCallState") -> bool:
- return all(x(retry_state) for x in self.stops)
-
-
-class _stop_never(stop_base):
- """Never stop."""
-
- def __call__(self, retry_state: "RetryCallState") -> bool:
- return False
-
-
-stop_never = _stop_never()
-
-
-class stop_when_event_set(stop_base):
- """Stop when the given event is set."""
-
- def __init__(self, event: "threading.Event") -> None:
- self.event = event
-
- def __call__(self, retry_state: "RetryCallState") -> bool:
- return self.event.is_set()
-
-
-class stop_after_attempt(stop_base):
- """Stop when the previous attempt >= max_attempt."""
-
- def __init__(self, max_attempt_number: int) -> None:
- self.max_attempt_number = max_attempt_number
-
- def __call__(self, retry_state: "RetryCallState") -> bool:
- return retry_state.attempt_number >= self.max_attempt_number
-
-
-class stop_after_delay(stop_base):
- """Stop when the time from the first attempt >= limit."""
-
- def __init__(self, max_delay: _utils.time_unit_type) -> None:
- self.max_delay = _utils.to_seconds(max_delay)
-
- def __call__(self, retry_state: "RetryCallState") -> bool:
- if retry_state.seconds_since_start is None:
- raise RuntimeError("__call__() called but seconds_since_start is not set")
- return retry_state.seconds_since_start >= self.max_delay