iankelling.org Git - distro-setup/blob - filesystem/usr/local/bin/myupgrade

   1 #!/bin/bash
   2 # Copyright (C) 2019 Ian Kelling
   3 # SPDX-License-Identifier: AGPL-3.0-or-later
   4
   5 if [ -z "$BASH_VERSION" ]; then echo "error: shell is not bash" >&2; exit 1; fi
   6
   7 set -eE -o pipefail
   8 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
   9
  10 hn=$(hostname -f)
  11 source /a/bin/bash_unpublished/source-state
  12 if [[ $HOSTNAME == "$MAIL_HOST" || $hn == li.b8.nz ]]; then
  13   exit 0
  14 fi
  15
  16 if [[ $(/usr/sbin/checkrestart | wc -l) != 1 ]]; then
  17   for x in {30..1}; do
  18     echo "pid $PID. unattended upgrade, rebooting in $((x*10)) seconds" | wall -n
  19     sleep 10
  20   done
  21   for x in {30..1}; do
  22     if ! fuser /var/lib/dpkg/lock &> /dev/null; then
  23       /sbin/reboot
  24       exit 0
  25     fi
  26     echo "pid $PID. unattended upgrade reboot waiting 10 seconds for dpkg lock" | wall -n
  27     sleep 10
  28   done
  29   echo "pid $PID. dpkg locked for 5 minutes, automatic reboot failed" | pee cat "wall -n"
  30 fi