19 lines
555 B
Python
19 lines
555 B
Python
"""Filesystem layout for ASN data — mirror of :mod:`decnet.geoip.paths`.
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``ASN_ROOT`` is where providers drop their raw files and cache indexes.
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Default ``/var/lib/decnet/asn``. Override with ``DECNET_ASN_ROOT`` for
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test harnesses.
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"""
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from __future__ import annotations
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import os
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from pathlib import Path
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ASN_ROOT = Path(os.environ.get("DECNET_ASN_ROOT", "/var/lib/decnet/asn"))
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def ensure_root() -> Path:
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"""Create ``ASN_ROOT`` if absent and return it. No-op if present."""
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ASN_ROOT.mkdir(parents=True, exist_ok=True)
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return ASN_ROOT
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