Edward Betts
cd37f0619b
config/default.py holds defaults using ~/lib/data/tfl (expanduser, so safe to commit). app.py loads it then overlays config/local.py if present, pushing paths into cache and circle_line modules. config/local.py is gitignored for machine-specific absolute paths (e.g. on the server where www-data runs). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
27 lines
777 B
Python
27 lines
777 B
Python
import json
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import os
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import time
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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):
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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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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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def set_cached(key: str, data) -> None:
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os.makedirs(CACHE_DIR, exist_ok=True)
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with open(_cache_path(key), 'w') as f:
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json.dump(data, f, indent=2)
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