iankelling.org Git - distro-setup/blob - bk-backup

   1 #!/bin/bash
   2 # I, Ian Kelling, follow the GNU license recommendations at
   3 # https://www.gnu.org/licenses/license-recommendations.en.html. They
   4 # recommend that small programs, < 300 lines, be licensed under the
   5 # Apache License 2.0. This file contains or is part of one or more small
   6 # programs. If a small program grows beyond 300 lines, I plan to switch
   7 # its license to GPL.
   8
   9 # Copyright 2024 Ian Kelling
  10
  11 # Licensed under the Apache License, Version 2.0 (the "License");
  12 # you may not use this file except in compliance with the License.
  13 # You may obtain a copy of the License at
  14
  15 #     http://www.apache.org/licenses/LICENSE-2.0
  16
  17 # Unless required by applicable law or agreed to in writing, software
  18 # distributed under the License is distributed on an "AS IS" BASIS,
  19 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  20 # See the License for the specific language governing permissions and
  21 # limitations under the License.
  22
  23
  24 # usage: $0 [restore]
  25
  26 if ! test "$BASH_VERSION"; then echo "error: shell is not bash" >&2; exit 1; fi
  27 shopt -s inherit_errexit 2>/dev/null ||: # ignore fail in bash < 4.4
  28 set -eE -o pipefail
  29 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?. PIPESTATUS: ${PIPESTATUS[*]}" >&2' ERR
  30
  31 # need root for rsync pull of file ownership/perms
  32 [[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"
  33
  34 host=bk.b8.nz
  35 ret=0
  36 source /a/bin/bash_unpublished/source-state
  37
  38 restore=false
  39 case $1 in
  40   restore)
  41     restore=true
  42     ;;
  43 esac
  44
  45 # last checked 2022-03 version 23
  46 # https://docs.nextcloud.com/server/latest/admin_manual/maintenance/restore.html
  47 if $restore; then
  48   set -x
  49   for ncdir in /var/www/ncexpertpath /var/www/ncninja; do
  50     ncbase=${ncdir##*/}
  51     ssh root@$host sudo -u www-data php $ncdir/occ -q maintenance:mode --on ||: # might not be running
  52     rsync -ravhi --numeric-ids /p/bkbackup/$ncbase/ root@$host:$ncdir  || ret=$?
  53     # https://docs.nextcloud.com/server/20/admin_manual/configuration_server/occ_command.html#maintenance-commands-label
  54     ssh root@$host sudo -u www-data php $ncdir/occ -q maintenance:data-fingerprint
  55     ssh root@$host sudo -u www-data php $ncdir/occ -q maintenance:mode --off
  56   done
  57   # the dovecot thing is not needed afaik, just a good practice.
  58   ssh root@$host systemctl stop dovecot
  59   rsync -ravi --numeric-ids /p/bkbackup/m root@$host:/
  60   ssh root@$host systemctl start dovecot
  61   exit 0
  62 fi
  63
  64 ret=0
  65 if [[ $HOSTNAME == "$MAIL_HOST" ]]; then
  66   mkdir -p /p/bkbackup
  67   for ncdir in /var/www/ncexpertpath /var/www/ncninja; do
  68     ncbase=${ncdir##*/}
  69     mkdir -p /p/bkbackup/$ncbase
  70     ssh root@$host sudo -u www-data php $ncdir/occ -q maintenance:mode --on
  71     rsync --numeric-ids -ra --delete root@$host:$ncdir/{config,data,themes} /p/bkbackup/$ncbase || ret=$?
  72     ssh root@$host sudo -u www-data php $ncdir/occ -q maintenance:mode --off
  73     if (( ret )); then
  74       echo "$0: error: failed rsync $ncdir"
  75       ret=1
  76     fi
  77   done
  78   rsync --numeric-ids -ra --delete \
  79         --exclude md/expertpathologyreview.com/testignore \
  80         --exclude md/amnimal.ninja/testignore \
  81         root@$host:/m /p/bkbackup
  82 fi
  83 exit $ret