Files
“sheetung” 34f1e3d56f feat(fnos): run entirely without root and harden process lifecycle
- Switch privilege model to run-as: package (zero root, per fnOS guide)
- Borrow App Store python312 instead of bundling CPython; keep bundled uv
- Move venv, HOME and caches onto the persistent data share
- Start service via setsid; stop/upgrade kill the whole process group
- Sweep stray runtime/box orphans in install/upgrade init hooks
- Track LangBot 4.10.11 (manifest baseline + upstream merge)
2026-09-18 16:20:32 +08:00

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#!/bin/bash
# cmd/upgrade_callback - post-upgrade hook
# Re-sync dependencies after code replacement using uv.
APP_DIR="${TRIM_APPDEST}/langbot"
# Persistent data root (must match cmd/main)
DATA_DIR="${TRIM_DATA_SHARE_PATHS%%:*}"
[ -z "${DATA_DIR}" ] && DATA_DIR="${TRIM_PKGVAR}/data"
# Writable HOME / caches / venv on the data share (must match
# cmd/install_callback — venv is relocated under DATA_DIR).
VENV_DIR="${DATA_DIR}/.venv"
export HOME="${DATA_DIR}/.home"
export UV_CACHE_DIR="${DATA_DIR}/.cache/uv"
# Never download a managed CPython — distro Python only (see install_callback)
export UV_PYTHON_DOWNLOADS=never
export UV_PROJECT_ENVIRONMENT="${VENV_DIR}"
mkdir -p "${HOME}" "${UV_CACHE_DIR}" "${DATA_DIR}/logs" || {
echo "Data share not writable: ${DATA_DIR}" > "${TRIM_TEMP_LOGFILE}"
exit 1
}
DEBUG_LOG="${DATA_DIR}/logs/upgrade-debug.log"
# Apply port from upgrade wizard (config persists across upgrades; this
# only rewrites it when the user changed the value in the upgrade wizard)
CONFIG_FILE="${DATA_DIR}/config.yaml"
if [ -n "${wizard_port:-}" ] && [ -f "${CONFIG_FILE}" ]; then
case "${wizard_port}" in
''|*[!0-9]*) ;;
*)
sed -i -E "/^api:/,/^[a-z_]+:/ s/^([[:space:]]*port:).*/\1 ${wizard_port}/" "${CONFIG_FILE}"
sed -i "s#webhook_prefix: 'http://127\.0\.0\.1:[0-9]*'#webhook_prefix: 'http://127.0.0.1:${wizard_port}'#" "${CONFIG_FILE}"
;;
esac
fi
cd "${APP_DIR}" || {
echo "App directory missing after upgrade" > "${TRIM_TEMP_LOGFILE}"
exit 1
}
# --- CPU architecture (must be resolved before locating bundled binaries) ---
ARCH=$(uname -m)
case "${ARCH}" in
x86_64|aarch64) ;;
*)
echo "Unsupported CPU architecture: ${ARCH}" > "${TRIM_TEMP_LOGFILE}"
exit 1
;;
esac
# uv: bundled binary at its single canonical path in the app dir
UV_BIN="${TRIM_APPDEST}/bin/uv-${ARCH}"
[ -x "${UV_BIN}" ] || {
echo "Bundled uv binary missing or not executable: ${UV_BIN}" > "${TRIM_TEMP_LOGFILE}"
exit 1
}
# Python: official python312 App Store app (same borrow pattern as Node.js)
PYTHON_BIN="/var/apps/python312/target/bin/python3"
[ -x "${PYTHON_BIN}" ] || {
echo "Python interpreter missing or not executable: ${PYTHON_BIN} (install the python312 app)" > "${TRIM_TEMP_LOGFILE}"
exit 1
}
# Re-sync deps (venv lives at ${DATA_DIR}/.venv, see install_callback)
if [ -d "${VENV_DIR}" ]; then
UV_PROJECT_ENVIRONMENT="${VENV_DIR}" "${UV_BIN}" sync --extra seekdb >> "${DEBUG_LOG}" 2>&1 || {
echo "Dependency sync failed after upgrade. See ${DEBUG_LOG}" > "${TRIM_TEMP_LOGFILE}"
exit 1
}
else
# Venv was lost, recreate it with the bundled uv on the data share
"${UV_BIN}" venv "${VENV_DIR}" --python "${PYTHON_BIN}" >> "${DEBUG_LOG}" 2>&1 || {
echo "Failed to recreate virtual environment. See ${DEBUG_LOG}" > "${TRIM_TEMP_LOGFILE}"
exit 1
}
UV_PROJECT_ENVIRONMENT="${VENV_DIR}" "${UV_BIN}" sync --extra seekdb >> "${DEBUG_LOG}" 2>&1 || {
echo "Dependency sync failed. See ${DEBUG_LOG}" > "${TRIM_TEMP_LOGFILE}"
exit 1
}
fi
# Verify frontend dist still present
if [ ! -d "web/dist" ] || [ -z "$(ls -A web/dist 2>/dev/null)" ]; then
echo "Frontend dist missing! Web UI will not be available." > "${TRIM_TEMP_LOGFILE}"
exit 1
fi
# Everything runs as the package user (run-as: package); the venv recreated
# above and the config rewritten via sed already belong to it. Cache HOME is
# prepared at the top of this script (see cmd/install_callback).
exit 0