mirror of
https://github.com/kuhyx/screen-locker.git
synced 2026-11-10 20:27:13 +01:00
Krzysztof kuhy Rudnicki
7b61619a7a
run.sh created .venv on first run and then only ever launched the app. When the crdt-sync pin moved to v0.9.0 nothing ran pip, so the venv sat at 0.6.0 for months and surfaced as an ImportError on LogCodec at startup. The venv is isolated (ENABLE_USER_SITE=False), so it could not fall back to the healthy 0.9.0 in user site-packages that the systemd units use. Reconcile against requirements.txt and refuse to launch if that fails, rather than starting on dependencies we already know are wrong. Gated on a sha256 stamp of requirements.txt: pip re-resolves the two git pins over the network (~5.5s) on every call, and this is a screen locker that has to start when the network is down. The stamp is only written on success, so a failed install retries on the next launch instead of being remembered as done. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PCUN9mdfJzJXqEZatHnUCD
41 lines
1.6 KiB
Bash
Executable File
41 lines
1.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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VENV="$SCRIPT_DIR/.venv"
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# tkinter is from Python stdlib; install python-tk system package if missing:
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# Arch: sudo pacman -S python-tk
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# Debian: sudo apt-get install python3-tk
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cd "$SCRIPT_DIR"
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if [[ ! -d "$VENV" ]]; then
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python3 -m venv "$VENV"
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fi
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# Reconcile the venv against requirements.txt whenever that file changes.
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# Without this the venv is created once and never updated, so a dependency pin
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# bump stays invisible until it surfaces as an ImportError at startup --
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# crdt-sync sat at 0.6.0 for months after the pin moved to 0.9.0.
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#
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# Gated on a hash stamp so the common case costs nothing: pip re-resolves the
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# git-pinned deps over the network (~5s) on every call, and this is a screen
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# locker that must still start when the network is down.
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STAMP="$VENV/.requirements.sha256"
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WANT="$(sha256sum requirements.txt | cut -d" " -f1)"
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HAVE="$(cat "$STAMP" 2>/dev/null || true)"
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if [[ "$WANT" != "$HAVE" ]]; then
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echo "Dependencies changed; reconciling venv against requirements.txt..." >&2
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if "$VENV/bin/pip" install -q -r requirements.txt; then
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printf '%s\n' "$WANT" > "$STAMP"
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else
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# Do not stamp on failure, so the next launch retries. Abort rather
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# than run on dependencies we know are wrong.
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echo "ERROR: failed to install dependencies from requirements.txt" >&2
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echo " Refusing to launch with unreconciled dependencies." >&2
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echo " Retry manually: $VENV/bin/pip install -r requirements.txt" >&2
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exit 1
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fi
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fi
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exec "$VENV/bin/python" -m screen_locker.screen_lock "$@"
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