Edward Betts
13c4341f3a
Annotated all functions with mypy --strict-compatible types (-> None, dict[str, Any], Generator types, etc.), added # type: ignore for untyped third-party libs (lxml), and reformatted with black. All 18 source files now pass mypy --strict with zero errors. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
35 lines
1 KiB
Python
35 lines
1 KiB
Python
import json
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import os
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import time
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import uuid
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from typing import Any
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from config.default import CACHE_DIR # overridden by app config after import
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def _cache_path(key: str) -> str:
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safe_key = key.replace("/", "_").replace(" ", "_")
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return os.path.join(CACHE_DIR, f"{safe_key}.json")
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def get_cached(key: str, ttl: int | None = None) -> Any:
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"""Return cached data, or None if missing or older than ttl seconds."""
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path = _cache_path(key)
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try:
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if not os.path.exists(path):
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return None
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if ttl is not None and time.time() - os.path.getmtime(path) > ttl:
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return None
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with open(path) as f:
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return json.load(f)
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except (OSError, json.JSONDecodeError):
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return None
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def set_cached(key: str, data: Any) -> None:
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os.makedirs(CACHE_DIR, exist_ok=True)
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path = _cache_path(key)
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tmp_path = f"{path}.{os.getpid()}.{uuid.uuid4().hex}.tmp"
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with open(tmp_path, "w") as f:
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json.dump(data, f, indent=2)
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os.replace(tmp_path, path)
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