iankelling.org Git - distro-setup/blob - laptop-btrbk

   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 if ! test "$BASH_VERSION"; then echo "error: shell is not bash" >&2; exit 1; fi
  25 shopt -s inherit_errexit 2>/dev/null ||: # ignore fail in bash < 4.4
  26 set -eE -o pipefail
  27 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?. PIPESTATUS: ${PIPESTATUS[*]}" >&2' ERR
  28
  29 locked=false
  30 if lock_info=$(xscreensaver-command -time); then
  31   if [[ $lock_info != *non-blanked* ]]; then
  32     locked=true
  33   fi
  34 else
  35   locked=true
  36 fi
  37
  38 if ! $locked; then
  39   btrbk run
  40 fi