Oliver Smith | 60673e7 | 2021-05-31 09:45:07 +0200 | [diff] [blame] | 1 | #!/bin/sh -e |
| 2 | # SPDX-License-Identifier: AGPL-3.0-or-later |
| 3 | # Copyright 2021 sysmocom s.f.m.c GmbH <info@sysmocom.de> |
| 4 | # |
| 5 | # Packagers are supposed to call this script in post-upgrade, so it can safely |
| 6 | # upgrade the database scheme if required. |
| 7 | |
| 8 | DB="/var/lib/osmocom/hlr.db" |
| 9 | IS_ACTIVE=0 |
| 10 | |
| 11 | msg() { |
| 12 | echo "osmo-hlr-post-upgrade: $@" |
| 13 | } |
| 14 | |
| 15 | err() { |
| 16 | msg "ERROR: $@" |
| 17 | } |
| 18 | |
| 19 | open_db() { |
| 20 | # Attempt to open the database with osmo-hlr-db-tool, it will fail if |
| 21 | # upgrading the schema is required |
| 22 | osmo-hlr-db-tool -s -l "$DB" create |
| 23 | } |
| 24 | |
| 25 | check_upgrade_required() { |
| 26 | if ! [ -e "$DB" ]; then |
| 27 | msg "nothing to do (no existing database)" |
| 28 | exit 0 |
| 29 | fi |
| 30 | |
| 31 | if open_db 2>/dev/null; then |
| 32 | msg "nothing to do (database version is up to date)" |
| 33 | exit 0 |
| 34 | fi |
| 35 | |
| 36 | msg "database upgrade is required" |
| 37 | } |
| 38 | |
| 39 | stop_service() { |
| 40 | if systemctl is-active -q osmo-hlr; then |
| 41 | IS_ACTIVE=1 |
| 42 | msg "stopping osmo-hlr service" |
| 43 | systemctl stop osmo-hlr |
| 44 | |
| 45 | # Verify that it stopped |
| 46 | for i in $(seq 1 100); do |
| 47 | if ! systemctl is-active -q osmo-hlr; then |
| 48 | return |
| 49 | fi |
| 50 | sleep 0.1 |
| 51 | done |
| 52 | |
| 53 | err "failed to stop osmo-hlr service" |
| 54 | exit 1 |
| 55 | else |
| 56 | msg "osmo-hlr service is not running" |
| 57 | fi |
| 58 | } |
| 59 | |
| 60 | create_backup() { |
| 61 | backup="$DB.$(date +%Y%m%d%H%M%S).bak" |
| 62 | msg "creating backup: $backup" |
| 63 | if [ -e "$backup" ]; then |
| 64 | err "backup already exists: $backup" |
| 65 | exit 1 |
| 66 | fi |
| 67 | cp "$DB" "$backup" |
| 68 | } |
| 69 | |
| 70 | upgrade() { |
| 71 | msg "performing database upgrade" |
| 72 | osmo-hlr-db-tool -s -U -l "$DB" create |
| 73 | |
| 74 | if ! open_db 2>/dev/null; then |
| 75 | err "failed to open the database after upgrade" |
| 76 | err "osmo-hlr-db-tool output:" |
| 77 | open_db |
| 78 | # exit because of "set -e" |
| 79 | fi |
| 80 | |
| 81 | msg "database upgrade successful" |
| 82 | } |
| 83 | |
| 84 | start_service() { |
| 85 | if [ "$IS_ACTIVE" = "1" ]; then |
| 86 | msg "starting osmo-hlr service" |
| 87 | systemctl start osmo-hlr |
| 88 | fi |
| 89 | } |
| 90 | |
| 91 | check_upgrade_required |
| 92 | stop_service |
| 93 | create_backup |
| 94 | upgrade |
| 95 | start_service |