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Krzysztof kuhy Rudnicki
6154dc09bf
The three Python packages pinned ruff twice at different versions: requirements.txt at 0.16.7, .pre-commit-config.yaml at v0.15.2. Only the older one ever ran, so `select = ["ALL"]` was enforced two minor versions behind. Measured before aligning: v0.15.2 reports 0 findings, every 0.16.x reports CPY001 on each file -- 70 crdt-sync, 23 freedays, 71 gatelock, and no other rule. Resolved by adding the notice rather than ignoring the rule, so the gate keeps its teeth. Two gatelock modules sat at exactly the 250-line cap, so a one-line header tipped them to 251. Both are split along a real seam rather than shaved: _widget_fills.py colour arithmetic over LockConfig, no tkinter import _surfaces_focus.py selects among existing surfaces, never mutates them The focus split keeps _surfaces.py's documented containment (it stays the only module that creates, moves or destroys windows), and the static guard in test_recovery_invariants.py globs _surfaces*.py, so the new sibling is covered with no list to extend. widgets.py re-exports the fills helpers, which keeps gatelock.widgets the single public surface its tests import. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019kMvSMtsVMB3d2uoZ56pbp
39 lines
1.2 KiB
Python
39 lines
1.2 KiB
Python
# Copyright (c) 2026 Krzysztof Rudnicki
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"""The revision string a device publishes alongside its log.
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Split from :mod:`crdt_sync._sync` so both the push and pull halves can import
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it without importing each other. Pure: a revision is a function of the encoded
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log and nothing else, which is what lets two devices agree on whether they are
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looking at the same bytes.
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Re-exported from :mod:`crdt_sync._sync`, so existing imports keep working.
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"""
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from __future__ import annotations
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import hashlib
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def revision_of(encoded_log: str) -> str:
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"""Return the revision of a serialized log: a content hash.
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A hash rather than the log's maximum HLC because merging a peer's *older*
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record changes the content without raising the maximum -- with three
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devices in one namespace (diet-guard has ``pc``, ``phone`` and
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``desktop``) a clock-based revision can miss a peer's merged state. It is
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also the same value used to suppress no-op pushes, so the two
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optimisations share one mechanism.
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Parameters
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----------
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encoded_log : str
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The serialized log, exactly as it would be pushed.
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Returns:
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-------
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str
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A hex SHA-256 digest.
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"""
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return hashlib.sha256(encoded_log.encode("utf-8")).hexdigest()
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