Extracting cache storage#3898
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springfall2008 merged 3 commits intomainfrom May 10, 2026
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Pull request overview
This PR extracts cache persistence into a new StorageComponent/StorageLocalFiles backend and migrates several existing “cache to config_root/cache” implementations to use the shared storage abstraction.
Changes:
- Add a new
apps/predbat/storage.pystorage component (async save/load/age + expiry metadata + periodic cleanup) and register it in the component registry. - Migrate Solcast/Open-Meteo/Forecast.Solar caching in
SolarAPI.cache_get_url()and Solcast/Forecast.Solar on-disk caches to use the storage component. - Persist/restore GE Cloud settings and FutureRate URL cache via storage; add unit tests for the storage backend and the migrated behaviors.
Reviewed changes
Copilot reviewed 14 out of 15 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
| requirements.txt | Adds aiofiles dependency for async filesystem I/O in the new storage backend. |
| apps/predbat/storage.py | Introduces the storage backend + component wrapper and cache cleanup logic. |
| apps/predbat/components.py | Registers the new storage component in phase 0. |
| apps/predbat/component_base.py | Adds ComponentBase.storage convenience accessor for components. |
| apps/predbat/solcast.py | Switches URL caching and Solcast/Forecast.Solar caches to the storage backend. |
| apps/predbat/gecloud.py | Restores/saves inverter settings + GE URL cache via the storage backend. |
| apps/predbat/futurerate.py | Loads/saves FutureRate URL cache via the storage backend. |
| apps/predbat/predbat.py | Removes legacy futurerate_url_cache initialization from reset state. |
| apps/predbat/userinterface.py | Removes legacy futurerate_url_cache from the debug exclude list. |
| apps/predbat/unit_test.py | Registers the new storage test suite in the main test runner. |
| apps/predbat/tests/test_storage.py | Adds unit tests for storage round-trip, expiry, cleanup, and age semantics. |
| apps/predbat/tests/test_solcast.py | Updates SolarAPI cache tests to use storage rather than direct filesystem JSON. |
| apps/predbat/tests/test_ge_cloud.py | Updates GE cache tests and adds tests for settings save/restore behavior via storage. |
| apps/predbat/tests/test_futurerate_auto.py | Adds tests asserting FutureRate cache load/save via storage. |
| .cspell/custom-dictionary-workspace.txt | Adds aiofiles to the spelling dictionary. |
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| # Store data in cache with 7-day expiry | ||
| if self.storage and data: | ||
| expiry = datetime.now(timezone.utc) + timedelta(days=7) | ||
| await self.storage.save("solar", hash_key, data, format="json", expiry=expiry) |
| except (ValueError, TypeError): | ||
| return None | ||
| if dt.tzinfo is None: | ||
| dt = dt.replace(tzinfo=timezone.utc) |
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| separators embedded in the identifier. | ||
| """ |
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