llama-stack-mirror/llama_stack/providers/utils/kvstore/redis/redis.py
Sébastien Han 6fa257b475
chore(lint): update Ruff ignores for project conventions and maintainability (#1184)
- Added new ignores from flake8-bugbear (`B007`, `B008`)
- Ignored `C901` (high function complexity) for now, pending review
- Maintained PyTorch conventions (`N812`, `N817`)
- Allowed `E731` (lambda assignments) for flexibility
- Consolidated existing ignores (`E402`, `E501`, `F405`, `C408`, `N812`)
- Documented rationale for each ignored rule

This keeps our linting aligned with project needs while tracking
potential fixes.

Signed-off-by: Sébastien Han <seb@redhat.com>

Signed-off-by: Sébastien Han <seb@redhat.com>
2025-02-28 09:36:49 -08:00

70 lines
2.3 KiB
Python

# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from datetime import datetime
from typing import List, Optional
from redis.asyncio import Redis
from ..api import KVStore
from ..config import RedisKVStoreConfig
class RedisKVStoreImpl(KVStore):
def __init__(self, config: RedisKVStoreConfig):
self.config = config
async def initialize(self) -> None:
self.redis = Redis.from_url(self.config.url)
def _namespaced_key(self, key: str) -> str:
if not self.config.namespace:
return key
return f"{self.config.namespace}:{key}"
async def set(self, key: str, value: str, expiration: Optional[datetime] = None) -> None:
key = self._namespaced_key(key)
await self.redis.set(key, value)
if expiration:
await self.redis.expireat(key, expiration)
async def get(self, key: str) -> Optional[str]:
key = self._namespaced_key(key)
value = await self.redis.get(key)
if value is None:
return None
await self.redis.ttl(key)
return value
async def delete(self, key: str) -> None:
key = self._namespaced_key(key)
await self.redis.delete(key)
async def range(self, start_key: str, end_key: str) -> List[str]:
start_key = self._namespaced_key(start_key)
end_key = self._namespaced_key(end_key)
cursor = 0
pattern = start_key + "*" # Match all keys starting with start_key prefix
matching_keys = []
while True:
cursor, keys = await self.redis.scan(cursor, match=pattern, count=1000)
for key in keys:
key_str = key.decode("utf-8") if isinstance(key, bytes) else key
if start_key <= key_str <= end_key:
matching_keys.append(key)
if cursor == 0:
break
# Then fetch all values in a single MGET call
if matching_keys:
values = await self.redis.mget(matching_keys)
return [
value.decode("utf-8") if isinstance(value, bytes) else value for value in values if value is not None
]
return []