39 lines
1.5 KiB
Python
39 lines
1.5 KiB
Python
"""Shared leaf helpers for the ``hermes update`` modules (no Hermes imports; no cycle)."""
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import logging
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import sys
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from contextlib import contextmanager
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# Log-record parity with the origin module.
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logger = logging.getLogger("hermes_cli.update_cmd")
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def _record_stop(reason: str, *, without_receipt: str | None = None) -> None:
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"""Name the exit about to stop this update as one closed token (see update_receipt.record_stop_reason).
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``without_receipt`` (``refused``/``failed``) is for an exit that fires before the receipt
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opens: a metrics row only. The receipt module is read from ``sys.modules``, never imported:
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an older updater can load this tree after the swap while its own, older ``update_receipt``
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(without these calls) stays loaded.
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"""
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receipt = sys.modules.get("hermes_cli.update_receipt")
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if without_receipt is None:
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record = getattr(receipt, "record_stop_reason", None)
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if record is not None:
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record(reason)
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elif (record := getattr(receipt, "record_stop_without_receipt", None)) is not None:
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record(reason, without_receipt)
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@contextmanager
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def _best_effort(message: str):
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"""Run a non-critical update step; swallow ``Exception`` and log it at debug.
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The updater must never die on bookkeeping (receipt, notices, cache seeds):
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``message`` is the ``%s``-style debug line the inline ``try/except`` used.
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"""
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try:
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yield
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except Exception as exc:
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logger.debug(message, exc)
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