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51 lines
2.1 KiB
Python
51 lines
2.1 KiB
Python
import sys
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from typing import Optional
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from django.core.cache import BaseCache, caches
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from django.core.cache.backends.locmem import LocMemCache
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from django_components.app_settings import app_settings
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from django_components.util.cache import LRUCache
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# TODO_V1 - Remove, won't be needed once we remove `get_template_string()`, `get_template_name()`, `get_template()`
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#
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# This stores the parsed Templates. This is strictly local for now, as it stores instances.
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# NOTE: Lazily initialized so it can be configured based on user-defined settings.
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template_cache: Optional[LRUCache] = None
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# This stores the inlined component JS and CSS files (e.g. `Component.js` and `Component.css`).
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# We also store here the generated JS and CSS scripts that inject JS / CSS variables into the page.
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component_media_cache: Optional[BaseCache] = None
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# TODO_V1 - Remove, won't be needed once we remove `get_template_string()`, `get_template_name()`, `get_template()`
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def get_template_cache() -> LRUCache:
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global template_cache # noqa: PLW0603
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if template_cache is None:
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template_cache = LRUCache(maxsize=app_settings.TEMPLATE_CACHE_SIZE)
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return template_cache
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def get_component_media_cache() -> BaseCache:
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if app_settings.CACHE is not None:
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return caches[app_settings.CACHE]
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# If no cache is set, use a local memory cache.
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global component_media_cache # noqa: PLW0603
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if component_media_cache is None:
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component_media_cache = LocMemCache(
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"django-components-media",
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{
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# No max size nor timeout
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# NOTE: Implementation of `BaseCache` coerces the `MAX_ENTRIES` value
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# to `int()` so we use exact max size instead of `inf` or `None`.
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# See https://github.com/django/django/blob/94ebcf8366d62f6360851b40e9c4dfe3f71d202f/django/core/cache/backends/base.py#L73 # noqa: E501
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"TIMEOUT": None,
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"OPTIONS": {
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"MAX_ENTRIES": sys.maxsize,
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},
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},
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)
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return component_media_cache
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