29 lines
1.6 KiB
Python
29 lines
1.6 KiB
Python
"""Canonical filesystem locations, resolved once from the repo root.
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Every path the backend needs (the climate cache, the accounts DB, logs, the
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bundled city data) is derived here from the repository root rather than from
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each module's own ``__file__``. That keeps the locations stable no matter how
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deep in the package tree a module lives, so moving a module never silently
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re-points the cache or the accounts DB.
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Callers that support an environment override (e.g. ``THERMOGRAPH_ACCOUNTS_DB``)
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keep doing so; these are only the defaults.
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"""
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import os
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REPO_DIR = os.path.dirname(os.path.abspath(__file__))
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# Runtime state dirs default under the repo root, but MUST be overridable: after
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# the repo split the code lives at the image root (/app), so the Python package
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# `data/` and the runtime data dir `<root>/data` collide at the same path. When
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# a persistent volume is mounted at that path (as the deploy compose does for
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# the parquet cache / notifier.lock / geonames) it shadows and erases the
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# `data/*.py` modules, so `import data.climate` fails at boot. Point
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# THERMOGRAPH_DATA_DIR (and _LOGS_DIR) at a path OUTSIDE the code tree in the
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# container to keep the volume clear of the package.
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DATA_DIR = os.environ.get("THERMOGRAPH_DATA_DIR") or os.path.join(REPO_DIR, "data")
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LOGS_DIR = os.environ.get("THERMOGRAPH_LOGS_DIR") or os.path.join(REPO_DIR, "logs")
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# Bundled reference data shipped alongside the code (generated by gen_cities /
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# gen_flavor), not runtime state — hence at the repo root, not data/.
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CITIES_JSON = os.path.join(REPO_DIR, "cities.json")
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CITIES_FLAVOR_JSON = os.path.join(REPO_DIR, "cities_flavor.json")
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