Files
Fenris/packaging/postinst.sh
T
xavierkandCommandCodeBot 8fa86c3bf8 fix(packaging): address code review findings
- Upgrade path restarts only fenris-collect.timer, not fenris-collect.service
  (spec §7: "a running oneshot finishes on its old interpreter")
- Remove redundant deb depends override in nfpm.yaml (top-level is sufficient)
- Remove common.sh sourcing — scripts are self-contained to avoid path
  dependency when dpkg/rpm run them from /var/lib/dpkg/info/

Co-authored-by: CommandCodeBot <noreply@commandcode.ai>
2026-09-03 02:39:34 +05:30

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#!/bin/sh
# postinst — deb install and upgrade paths (spec §7).
#
# dpkg calls: postinst configure [most-recently-configured-version]
# fresh install: $1 = "configure", $2 = ""
# upgrade: $1 = "configure", $2 = old version
set -eu
STORE_DIR="/var/lib/fenris"
STORE_DB="${STORE_DIR}/observations.db"
STORE_BAK="${STORE_DIR}/observations.db.bak"
VENV_PYTHON="/opt/fenris/bin/python3"
case "${1:-}" in
configure)
if [ -n "${2:-}" ]; then
# Upgrade — snapshot, migration, daemon-reload, conditional timer restart
if [ -f "${STORE_DB}" ]; then
cp "${STORE_DB}" "${STORE_BAK}" 2>/dev/null || true
fi
if [ -x "${VENV_PYTHON}" ] && [ -f "${STORE_DB}" ]; then
"${VENV_PYTHON}" -c "
from fenris.store import migrate_to_latest
from pathlib import Path
n = migrate_to_latest(Path('${STORE_DB}'))
print(f'Fenris migration: {n} step(s) applied') if n else None
" 2>&1 || echo "Fenris: migration skipped (store not yet initialized)"
fi
systemctl daemon-reload 2>/dev/null || true
# Restart timer only if unit contents changed AND active (spec §7)
for unit in fenris-collect.timer; do
if systemctl is-active --quiet "${unit}" 2>/dev/null; then
TMPFILE="$(mktemp)"
systemctl cat "${unit}" > "${TMPFILE}" 2>/dev/null || true
UNIT_PATH="/usr/lib/systemd/system/${unit}"
if ! diff -q "${TMPFILE}" "${UNIT_PATH}" > /dev/null 2>&1; then
systemctl restart "${unit}" 2>/dev/null || true
fi
rm -f "${TMPFILE}"
fi
done
fi
# sysusers, tmpfiles, daemon-reload (both fresh install and upgrade)
systemd-sysusers || true
systemd-tmpfiles --create || true
systemctl daemon-reload || true
;;
abort-upgrade|abort-install|disappear)
;;
esac