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paths.py: make DATA_DIR/LOGS_DIR env-overridable to avoid /app/data volume collision

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After the repo split the code lives at the image root, so the Python package
data/ and the runtime data dir <root>/data are the same path (/app/data). The
deploy compose mounts the appdata volume there, shadowing data/*.py so
'import data.climate' fails at container boot. THERMOGRAPH_DATA_DIR (and
_LOGS_DIR) now let the container point runtime state at a path outside the code
tree; local dev is unchanged (defaults to <root>/data).
This commit is contained in:
Emi Griffith 2026-07-22 14:45:26 -07:00
parent 8555e705a9
commit 7b7727f234
1 changed files with 10 additions and 2 deletions
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12
paths.py
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@ -12,8 +12,16 @@ keep doing so; these are only the defaults.
import os
REPO_DIR = os.path.dirname(os.path.abspath(__file__))
DATA_DIR = os.path.join(REPO_DIR, "data")
LOGS_DIR = os.path.join(REPO_DIR, "logs")
# Runtime state dirs default under the repo root, but MUST be overridable: after
# the repo split the code lives at the image root (/app), so the Python package
# `data/` and the runtime data dir `<root>/data` collide at the same path. When
# a persistent volume is mounted at that path (as the deploy compose does for
# the parquet cache / notifier.lock / geonames) it shadows and erases the
# `data/*.py` modules, so `import data.climate` fails at boot. Point
# THERMOGRAPH_DATA_DIR (and _LOGS_DIR) at a path OUTSIDE the code tree in the
# container to keep the volume clear of the package.
DATA_DIR = os.environ.get("THERMOGRAPH_DATA_DIR") or os.path.join(REPO_DIR, "data")
LOGS_DIR = os.environ.get("THERMOGRAPH_LOGS_DIR") or os.path.join(REPO_DIR, "logs")
# Bundled reference data shipped alongside the code (generated by gen_cities /
# gen_flavor), not runtime state — hence at the repo root, not data/.