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Claude
2dae36a094
api_v3.py's font upload/delete handlers import delete_cached from web_interface.cache, but the function was never defined. The surrounding except ImportError silently swallowed the failure, so the fonts_catalog cache entry survived uploads/deletes and newly uploaded fonts did not appear until the TTL expired or the service restarted. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SXb4mKcAkVaxkeTb3YnAdr
49 lines
1.3 KiB
Python
49 lines
1.3 KiB
Python
"""
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Simple in-memory cache for expensive operations.
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Separated from app.py to avoid circular import issues.
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"""
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import time
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from typing import Any, Optional
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# Simple in-memory cache for expensive operations
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_cache = {}
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_cache_timestamps = {}
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def get_cached(key: str, ttl_seconds: int = 60) -> Optional[Any]:
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"""Get value from cache if not expired."""
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if key in _cache:
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if time.time() - _cache_timestamps[key] < ttl_seconds:
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return _cache[key]
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else:
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# Expired, remove
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del _cache[key]
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del _cache_timestamps[key]
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return None
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def set_cached(key: str, value: Any, ttl_seconds: int = 60) -> None:
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"""Set value in cache with TTL."""
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_cache[key] = value
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_cache_timestamps[key] = time.time()
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def delete_cached(key: str) -> None:
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"""Remove a single key from the cache if present."""
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_cache.pop(key, None)
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_cache_timestamps.pop(key, None)
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def invalidate_cache(pattern: Optional[str] = None) -> None:
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"""Invalidate cache entries matching pattern, or all if pattern is None."""
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if pattern is None:
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_cache.clear()
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_cache_timestamps.clear()
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else:
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keys_to_remove = [k for k in _cache.keys() if pattern in k]
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for key in keys_to_remove:
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del _cache[key]
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del _cache_timestamps[key]
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