utils/gatelock
Krzysztof kuhy Rudnicki 81d2493476 gatelock + crdt-sync: exact-pin every Python dependency
Sixteen `>=` floors become exact pins across the two Python packages, taking
five majors with them: mypy 1.13 -> 2.3.1, pylint 3.3 -> 4.0.7, pytest 8 -> 9,
pytest-cov 5 -> 7, bandit 1.7 -> 1.9.4, plus ruff 0.15 -> 0.16.5 and
requests/types-requests. A `>=` floor is satisfied by everything newer, so it
told a checker nothing about whether these repos were actually current.

Verified in a clean venv per repo, which is what both CI workflows do
(`pip install -r requirements.txt`): gatelock 389 tests at 100% coverage under
xvfb, crdt-sync 432 tests at 100%. No test change was needed for any of the
five majors.

**Open, and deliberately not in this commit:** `.pre-commit-config.yaml` pins
these same tools AGAIN via `rev:` (ruff v0.15.2, mypy v1.13.0, pylint v3.3.2),
independently of requirements.txt, and the gate does not read `rev:` pins at
all -- so the linters CI actually runs are still on the old majors. Bumping
them is a separate and much larger job: ruff 0.16 raises 71 findings here
(CPY001 alone accounts for many, since this repo selects ALL) and mypy 2.x
raises 60, mostly stricter implicit-re-export rules. One major per commit, and
that is several.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CRykabMwPgDzFHcARoqpaK
2026-08-28 13:37:25 +02:00
..
docs Add the shared markdown-naming gate and migrate utils' own docs 2026-08-24 15:53:12 +02:00
gatelock Fix the cap hook in CI, and the re-exports its --all-files run exposed 2026-08-22 15:52:59 +02:00
prompts Add the shared markdown-naming gate and migrate utils' own docs 2026-08-24 15:53:12 +02:00
.pre-commit-config.yaml Fix the cap hook in CI, and the re-exports its --all-files run exposed 2026-08-22 15:52:59 +02:00
LICENSE Initial gatelock: shared lock-window + HMAC log-integrity backend 2026-06-19 17:39:44 +02:00
pyproject.toml gatelock + crdt-sync: exact-pin every Python dependency 2026-08-28 13:37:25 +02:00
README.md gatelock: warm-tint the unified-design-system palette, add on-fill token 2026-07-21 21:11:07 +02:00
requirements.txt gatelock + crdt-sync: exact-pin every Python dependency 2026-08-28 13:37:25 +02:00

gatelock

Shared fullscreen lock-window + HMAC log-integrity backend, extracted from three personal automation tools that each independently implemented "lock the screen with a blocking overlay until a condition is met": diet_guard, wake_alarm, and screen-locker.

Why

All three reimplemented the same tkinter fullscreen mechanics (overrideredirect, input grab, VT-switch disable) at different levels of maturity, and the HMAC-signed-state module had already been hand-copied between two of them because they live in separate repos. gatelock is the one place that logic now lives.

Install

pip install "gatelock @ git+https://github.com/kuhyx/utils@gatelock-v0.1.1#subdirectory=gatelock"

Usage

import tkinter as tk
from gatelock import GateRoot, LockConfig, LockWindow

class MyGate:
    def __init__(self, *, demo_mode: bool) -> None:
        self.root = GateRoot()
        self.root.on_callback_error = self._handle_callback_error
        config = LockConfig(mode="soft" if demo_mode else "hard")
        self._lock = LockWindow(self.root, config, hooks=self)
        self._lock.setup()
        # ... build your widgets ...
        self._lock.grab_input()

    def on_focus_ready(self) -> None:
        self.my_entry.focus_force()

    def on_callback_error(self) -> None:
        self.close()

    def on_close(self) -> None:
        ...  # release any hardware/state held while locked

    def close(self) -> None:
        self._lock.close()

    def run(self) -> None:
        self._lock.run()

LockConfig's mode preset bundles the common combination ("soft" = topmost only, typeable, WM-escapable; "hard" = overrideredirect + global grab + VT-disable). Each axis (overrideredirect, grab, disable_vt, grab_retry_ms) can be set explicitly to reproduce a consumer's exact prior behavior where it diverges from the preset.

gatelock.log_integrity ports the HMAC-signed state module used by all three projects; DEFAULT_HMAC_KEY_FILE (/etc/workout-locker/hmac.key) is unchanged so existing signed history keeps verifying.

Development

python -m venv .venv && source .venv/bin/activate
pip install -r requirements.txt
pytest
pre-commit install && pre-commit install --hook-type pre-push