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