You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
95 lines
3.5 KiB
Python
95 lines
3.5 KiB
Python
![]()
2 months ago
|
# Copyright 2016 Étienne Bersac
|
||
|
# Copyright 2016 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 functools
|
||
|
import sys
|
||
|
import typing as t
|
||
|
from asyncio import sleep
|
||
|
|
||
|
from pip._vendor.tenacity import AttemptManager
|
||
|
from pip._vendor.tenacity import BaseRetrying
|
||
|
from pip._vendor.tenacity import DoAttempt
|
||
|
from pip._vendor.tenacity import DoSleep
|
||
|
from pip._vendor.tenacity import RetryCallState
|
||
|
|
||
|
WrappedFnReturnT = t.TypeVar("WrappedFnReturnT")
|
||
|
WrappedFn = t.TypeVar("WrappedFn", bound=t.Callable[..., t.Awaitable[t.Any]])
|
||
|
|
||
|
|
||
|
class AsyncRetrying(BaseRetrying):
|
||
|
sleep: t.Callable[[float], t.Awaitable[t.Any]]
|
||
|
|
||
|
def __init__(self, sleep: t.Callable[[float], t.Awaitable[t.Any]] = sleep, **kwargs: t.Any) -> None:
|
||
|
super().__init__(**kwargs)
|
||
|
self.sleep = sleep
|
||
|
|
||
|
async def __call__( # type: ignore[override]
|
||
|
self, fn: WrappedFn, *args: t.Any, **kwargs: t.Any
|
||
|
) -> WrappedFnReturnT:
|
||
|
self.begin()
|
||
|
|
||
|
retry_state = RetryCallState(retry_object=self, fn=fn, args=args, kwargs=kwargs)
|
||
|
while True:
|
||
|
do = self.iter(retry_state=retry_state)
|
||
|
if isinstance(do, DoAttempt):
|
||
|
try:
|
||
|
result = await fn(*args, **kwargs)
|
||
|
except BaseException: # noqa: B902
|
||
|
retry_state.set_exception(sys.exc_info()) # type: ignore[arg-type]
|
||
|
else:
|
||
|
retry_state.set_result(result)
|
||
|
elif isinstance(do, DoSleep):
|
||
|
retry_state.prepare_for_next_attempt()
|
||
|
await self.sleep(do)
|
||
|
else:
|
||
|
return do # type: ignore[no-any-return]
|
||
|
|
||
|
def __iter__(self) -> t.Generator[AttemptManager, None, None]:
|
||
|
raise TypeError("AsyncRetrying object is not iterable")
|
||
|
|
||
|
def __aiter__(self) -> "AsyncRetrying":
|
||
|
self.begin()
|
||
|
self._retry_state = RetryCallState(self, fn=None, args=(), kwargs={})
|
||
|
return self
|
||
|
|
||
|
async def __anext__(self) -> AttemptManager:
|
||
|
while True:
|
||
|
do = self.iter(retry_state=self._retry_state)
|
||
|
if do is None:
|
||
|
raise StopAsyncIteration
|
||
|
elif isinstance(do, DoAttempt):
|
||
|
return AttemptManager(retry_state=self._retry_state)
|
||
|
elif isinstance(do, DoSleep):
|
||
|
self._retry_state.prepare_for_next_attempt()
|
||
|
await self.sleep(do)
|
||
|
else:
|
||
|
raise StopAsyncIteration
|
||
|
|
||
|
def wraps(self, fn: WrappedFn) -> WrappedFn:
|
||
|
fn = super().wraps(fn)
|
||
|
# Ensure wrapper is recognized as a coroutine function.
|
||
|
|
||
|
@functools.wraps(fn)
|
||
|
async def async_wrapped(*args: t.Any, **kwargs: t.Any) -> t.Any:
|
||
|
return await fn(*args, **kwargs)
|
||
|
|
||
|
# Preserve attributes
|
||
|
async_wrapped.retry = fn.retry # type: ignore[attr-defined]
|
||
|
async_wrapped.retry_with = fn.retry_with # type: ignore[attr-defined]
|
||
|
|
||
|
return async_wrapped # type: ignore[return-value]
|