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Additional type hints for config module. (#11465)

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This adds some misc. type hints to helper methods used
in the `synapse.config` module.
This commit is contained in:
Patrick Cloke 2021-12-01 07:28:23 -05:00 • committed by GitHub
parent a265fbd397
commit f44d729d4c
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15 changed files with 129 additions and 99 deletions
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26
synapse/config/cache.py
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@ -1,4 +1,4 @@
# Copyright 2019 Matrix.org Foundation C.I.C.
# Copyright 2019-2021 Matrix.org Foundation C.I.C.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
@ -17,6 +17,8 @@ import re
import threading
from typing import Callable, Dict, Optional
import attr
from synapse.python_dependencies import DependencyException, check_requirements
from ._base import Config, ConfigError
@ -34,13 +36,13 @@ _DEFAULT_FACTOR_SIZE = 0.5
_DEFAULT_EVENT_CACHE_SIZE = "10K"
@attr.s(slots=True, auto_attribs=True)
class CacheProperties:
def __init__(self):
# The default factor size for all caches
self.default_factor_size = float(
os.environ.get(_CACHE_PREFIX, _DEFAULT_FACTOR_SIZE)
)
self.resize_all_caches_func = None
# The default factor size for all caches
default_factor_size: float = float(
os.environ.get(_CACHE_PREFIX, _DEFAULT_FACTOR_SIZE)
)
resize_all_caches_func: Optional[Callable[[], None]] = None
properties = CacheProperties()
@ -62,7 +64,7 @@ def _canonicalise_cache_name(cache_name: str) -> str:
def add_resizable_cache(
cache_name: str, cache_resize_callback: Callable[[float], None]
):
) -> None:
"""Register a cache that's size can dynamically change
Args:
@ -91,7 +93,7 @@ class CacheConfig(Config):
_environ = os.environ
@staticmethod
def reset():
def reset() -> None:
"""Resets the caches to their defaults. Used for tests."""
properties.default_factor_size = float(
os.environ.get(_CACHE_PREFIX, _DEFAULT_FACTOR_SIZE)
@ -100,7 +102,7 @@ class CacheConfig(Config):
with _CACHES_LOCK:
_CACHES.clear()
def generate_config_section(self, **kwargs):
def generate_config_section(self, **kwargs) -> str:
return """\
## Caching ##
@ -162,7 +164,7 @@ class CacheConfig(Config):
#sync_response_cache_duration: 2m
"""
def read_config(self, config, **kwargs):
def read_config(self, config, **kwargs) -> None:
self.event_cache_size = self.parse_size(
config.get("event_cache_size", _DEFAULT_EVENT_CACHE_SIZE)
)
@ -232,7 +234,7 @@ class CacheConfig(Config):
# needing an instance of Config
properties.resize_all_caches_func = self.resize_all_caches
def resize_all_caches(self):
def resize_all_caches(self) -> None:
"""Ensure all cache sizes are up to date
For each cache, run the mapped callback function with either