update.sh

   1 #!/bin/bash
   2
   3 if [[ ! -e "/dev/sda1" ]]; then
   4  exit 1
   5 fi
   6
   7 printf "Found USB... "
   8
   9 umount /dev/sda1 > /dev/null 2>&1
  10 mount /dev/sda1 > /dev/null 2>&1 || { printf "Mount failure\n"; exit 1; }
  11
  12 printf "\t\tMount OK\n"
  13
  14 if [[ -e "/mnt/usb-update/config.ini" ]]; then
  15   printf "Found config.ini... "
  16   (cp /mnt/usb-update/config.ini /home/pi/hdmi-switcher > /dev/null 2>&1 && printf "\tCopy OK\n") || printf "\tCopy failure\n"
  17 fi
  18
  19 if [[ -e "/mnt/usb-update/video.mp4" ]]; then
  20   printf "Found video.mp4... "
  21   (cp /mnt/usb-update/video.mp4 /home/pi/hdmi-switcher > /dev/null 2>&1 && printf "\tCopy OK\n") || printf "\tCopy failure\n"
  22 fi
  23
  24 if [[ -e "/mnt/usb-update/update.zip" ]] && [[ -e "/mnt/usb-update/update.sig" ]]; then
  25   current_version=$(/home/pi/hdmi-switcher/hdmi-switcher version)
  26   printf "Updating software... "
  27   openssl dgst -sha256 -verify /home/pi/hdmi-switcher/public.pem -signature /mnt/usb-update/update.sig /mnt/usb-update/update.zip > /dev/null 2>&1
  28   if [[ $? = 0 ]]; then
  29     (unzip -o /mnt/usb-update/update.zip -d /home/pi > /dev/null 2>&1 && printf "\tOK\n") || printf "\tExtract failure\n"
  30     chmod +x /home/pi/hdmi-switcher/start.sh
  31     chmod +x /home/pi/hdmi-switcher/update.sh
  32     chmod +x /home/pi/hdmi-switcher/hdmi-switcher
  33     new_version=$(/home/pi/hdmi-switcher/hdmi-switcher version)
  34     if [[ "$current_version" != "$new_version" ]]; then
  35       printf "Restart required...\n"
  36       #reboot
  37     fi
  38   else
  39     printf "\tSignature failure\n"
  40   fi
  41 fi
  42
  43 umount /dev/sda1 > /dev/null 2>&1