iankelling.org Git - distro-setup/blob - btrbk-spread-wrap

   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 [[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"
  25
  26 if ! test "$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\" exit status: $?, PIPESTATUS: ${PIPESTATUS[*]}" >&2' ERR
  30
  31 /a/exe/install-my-scripts
  32 printf "%s\n" -k >/etc/btrbk-run-once.conf
  33 # running start if it is already starting causes it to just wait until
  34 # it done starting. In that case, we'd need to run it twice, or we have
  35 # another unit which has an After=, eg btrbk-spread, but that isn't as
  36 # good because, we can't have btrbk have After= on btrbk-spread, and
  37 # what if btrbk-spread is itself already running, we have the same
  38 # problem.
  39 systemctl start btrbk
  40 if [[ -s /etc/btrbk-run-once.conf ]]; then
  41   systemctl start btrbk
  42 fi