utils/freedays/freedays/_errors.py
Krzysztof kuhy Rudnicki 6154dc09bf Pin pre-commit's ruff to 0.16.7 and satisfy the CPY001 it brings
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
2026-09-12 18:11:24 +02:00

36 lines
1.0 KiB
Python

# Copyright (c) 2026 Krzysztof Rudnicki
"""Why a mark or un-mark was refused.
Each of these is a *policy* refusal with a message meant to be shown to the
person who typed the command. None of them indicates a bug, so callers are
expected to catch them and print ``str(exc)`` rather than let a traceback
out.
"""
from __future__ import annotations
class FreeDayError(Exception):
"""Base class for every policy refusal in this package."""
class PastDateError(FreeDayError):
"""A day in the past cannot be marked free.
This is the one real abuse vector in an otherwise frictionless system:
without it, a gate that already fired and was already failed could be
erased after the fact.
"""
class BudgetExhaustedError(FreeDayError):
"""This calendar year has no free days left."""
class AlreadyFreeError(FreeDayError):
"""The day is already marked free, so marking it again would be a no-op."""
class NotFreeError(FreeDayError):
"""The day is not marked free, so there is nothing to release."""