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#!/bin/sh -e
# SPDX-License-Identifier: AGPL-3.0-or-later
# Copyright 2021 sysmocom s.f.m.c GmbH <info@sysmocom.de>
#
# Packagers are supposed to call this script in post-upgrade, so it can safely
# upgrade the database scheme if required.
DB="/var/lib/osmocom/hlr.db"
IS_ACTIVE=0
msg() {
echo "osmo-hlr-post-upgrade: $@"
}
err() {
msg "ERROR: $@"
}
open_db() {
# Attempt to open the database with osmo-hlr-db-tool, it will fail if
# upgrading the schema is required
osmo-hlr-db-tool -s -l "$DB" create
}
check_upgrade_required() {
if ! [ -e "$DB" ]; then
msg "nothing to do (no existing database)"
exit 0
fi
if open_db 2>/dev/null; then
msg "nothing to do (database version is up to date)"
exit 0
fi
msg "database upgrade is required"
}
stop_service() {
if systemctl is-active -q osmo-hlr; then
IS_ACTIVE=1
msg "stopping osmo-hlr service"
systemctl stop osmo-hlr
# Verify that it stopped
for i in $(seq 1 100); do
if ! systemctl is-active -q osmo-hlr; then
return
fi
sleep 0.1
done
err "failed to stop osmo-hlr service"
exit 1
else
msg "osmo-hlr service is not running"
fi
}
create_backup() {
backup="$DB.$(date +%Y%m%d%H%M%S).bak"
msg "creating backup: $backup"
if [ -e "$backup" ]; then
err "backup already exists: $backup"
exit 1
fi
cp "$DB" "$backup"
}
upgrade() {
msg "performing database upgrade"
osmo-hlr-db-tool -s -U -l "$DB" create
if ! open_db 2>/dev/null; then
err "failed to open the database after upgrade"
err "osmo-hlr-db-tool output:"
open_db
# exit because of "set -e"
fi
msg "database upgrade successful"
}
start_service() {
if [ "$IS_ACTIVE" = "1" ]; then
msg "starting osmo-hlr service"
systemctl start osmo-hlr
fi
}
check_upgrade_required
stop_service
create_backup
upgrade
start_service
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