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 # Note: running this inside a cronjob, it wont mail any output if we end
   6 # up rebooting from this script.
   7
   8 if [ -z "$BASH_VERSION" ]; then echo "error: shell is not bash" >&2; exit 1; fi
   9
  10 source /usr/local/lib/err
  11 pre="${0##*/}:"
  12 PATH="/sbin:$PATH"
  13 m() { printf "$pre %s\n"  "$*"; "$@"; }
  14 e() { printf "$pre %s\n"  "$*"; }
  15 err() { echo "[$(date +'%Y-%m-%d %H:%M:%S%z')]: $pre: $*" >&2; }
  16
  17 [[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"
  18
  19 hn=$(hostname -f)
  20 source /a/bin/bash_unpublished/source-state
  21
  22 l() {
  23   "$@" |& systemd-cat -t myupgrade
  24 }
  25
  26 ## temporary
  27 case $HOSTNAME in
  28   kd)
  29     exit 0
  30     ;;
  31 esac
  32
  33 if checkrestart -b /a/bin/ds/checkrestart-blacklist -p -t &>/dev/null; then
  34   exit 0
  35 fi
  36
  37 if [[ $HOSTNAME == "$MAIL_HOST" ]]; then
  38   # no automatic reboot for this host, just make an alert
  39   checkrestart -b /a/bin/ds/checkrestart-blacklist -p 2>/dev/null ||:
  40   exit 0
  41 else
  42   l checkrestart -b /a/bin/ds/checkrestart-blacklist -p 2>/dev/null ||:
  43 fi
  44
  45 for x in {30..1}; do
  46   echo "pid $$. unattended upgrade, rebooting in $((x*10)) seconds" | wall -n
  47   sleep 10
  48 done
  49 for x in {30..1}; do
  50   if ! fuser /var/lib/dpkg/lock &> /dev/null; then
  51     echo "pid $$. unattended upgrade, rebooting now" | pee cat "wall -n"
  52     /a/bin/ds/keyscript-on
  53     /sbin/reboot
  54     exit 0
  55   fi
  56   echo "pid $$. unattended upgrade reboot waiting 10 seconds for dpkg lock" | wall -n
  57   sleep 10
  58 done
  59 echo "pid $$. dpkg locked for 5 minutes, automatic reboot failed" | pee cat "wall -n"