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Type hints for multifilesystem

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Unrud 2021-07-26 20:56:47 +02:00 • committed by Unrud
parent cecb17df03
commit 698ae875ce
14 changed files with 428 additions and 246 deletions
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20
radicale/storage/multifilesystem/sync.py
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@ -21,16 +21,22 @@ import itertools
import os
import pickle
from hashlib import sha256
from typing import BinaryIO, Iterable, Tuple, cast
from radicale.log import logger
from radicale.storage.multifilesystem.base import CollectionBase
from radicale.storage.multifilesystem.cache import CollectionPartCache
from radicale.storage.multifilesystem.history import CollectionPartHistory
class CollectionSyncMixin:
def sync(self, old_token=""):
class CollectionPartSync(CollectionPartCache, CollectionPartHistory,
CollectionBase):
def sync(self, old_token: str = "") -> Tuple[str, Iterable[str]]:
# The sync token has the form http://radicale.org/ns/sync/TOKEN_NAME
# where TOKEN_NAME is the sha256 hash of all history etags of present
# and past items of the collection.
def check_token_name(token_name):
def check_token_name(token_name: str) -> bool:
if len(token_name) != 64:
return False
for c in token_name:
@ -89,15 +95,15 @@ class CollectionSyncMixin:
self._storage._makedirs_synced(token_folder)
try:
# Race: Other processes might have created and locked the file.
with self._atomic_write(token_path, "wb") as f:
pickle.dump(state, f)
with self._atomic_write(token_path, "wb") as fo:
fb = cast(BinaryIO, fo)
pickle.dump(state, fb)
except PermissionError:
pass
else:
# clean up old sync tokens and item cache
self._clean_cache(token_folder, os.listdir(token_folder),
max_age=self._storage.configuration.get(
"storage", "max_sync_token_age"))
max_age=self._max_sync_token_age)
self._clean_history()
else:
# Try to update the modification time