#!/bin/sh

# pcmemtest-install - Script to install PCMemTest
#
# Written in 2022 by Márcio Silva <coadde@hyperbola.info>
#
# To the extent possible under law, the author(s) have dedicated all copyright
# and related and neighboring rights to this software to the public domain
# worldwide. This software is distributed without any warranty.
#
# You should have received a copy of the CC0 Public Domain Dedication along
# with this software. If not, see
# <https://creativecommons.org/publicdomain/zero/1.0/>.

if [ "${UID}" != '0' ] || [ "${USER}" != 'root' ]; then
  printf 'Only "root" user can install PCMemTest.\n'
  return 1
fi

case "${1}" in
'bios')
  install -Dm '644' '/usr/share/pcmemtest/memtest.bin' -t \
    '/boot/pcmemtest'
  ;;
'uefi')
  _SOURCE="$(findmnt -n -o 'source' '/boot/efi')"
  if [ -f '/usr/share/pcmemtest/bootia32.efi' ]; then
    install -Dm '644' '/usr/share/pcmemtest/bootia32.efi' -t \
      '/boot/efi/efi/PCMemTest'
    efibootmgr -c -d "${_SOURCE}" \
      -l '\\efi\PCMemTest\bootia32.efi' -L 'PCMemTest (IA32)' -v
  fi
  if [ -f '/usr/share/pcmemtest/bootx64.efi' ]; then
    install -Dm '644' '/usr/share/pcmemtest/bootx64.efi' -t \
      '/boot/efi/efi/PCMemTest'
    efibootmgr -c -d "${_SOURCE}" \
      -l '\\efi\PCMemTest\bootx64.efi' -L 'PCMemTest' -v
  fi
  ;;
'uefi-in-boot')
  _SOURCE="$(findmnt -n -o 'source' '/boot/efi')"
  if [ -f '/usr/share/pcmemtest/bootia32.efi' ]; then
    install -Dm '644' '/usr/share/pcmemtest/bootia32.efi' -t \
      '/boot/efi/PCMemTest'
    efibootmgr -c -d "${_SOURCE}" \
      -l '\\efi\PCMemTest\bootia32.efi' -L 'PCMemTest (IA32)' -v
  fi
  if [ -f '/usr/share/pcmemtest/bootx64.efi' ]; then
    install -Dm '644' '/usr/share/pcmemtest/bootx64.efi' -t \
      '/boot/efi/PCMemTest'
    efibootmgr -c -d "${_SOURCE}" \
      -l '\\efi\PCMemTest\bootx64.efi' -L 'PCMemTest' -v
  fi
  ;;
'both-in-boot')
  install -Dm '644' '/usr/share/pcmemtest/memtest.bin' -t \
    '/boot/pcmemtest'
  _SOURCE="$(findmnt -n -o 'source' '/boot/efi')"
  if [ -f '/usr/share/pcmemtest/bootia32.efi' ]; then
    install -Dm '644' '/usr/share/pcmemtest/bootia32.efi' -t \
      '/boot/efi/PCMemTest'
    efibootmgr -c -d "${_SOURCE}" \
      -l '\\efi\PCMemTest\bootia32.efi' -L 'PCMemTest (IA32)' -v
  fi
  if [ -f '/usr/share/pcmemtest/bootx64.efi' ]; then
    install -Dm '644' '/usr/share/pcmemtest/bootx64.efi' -t \
      '/boot/efi/PCMemTest'
    efibootmgr -c -d "${_SOURCE}" \
      -l '\\efi\PCMemTest\bootx64.efi' -L 'PCMemTest' -v
  fi
  ;;
*|'both')
  install -Dm '644' '/usr/share/pcmemtest/memtest.bin' -t \
    '/boot/pcmemtest'
  _SOURCE="$(findmnt -n -o 'source' '/boot/efi')"
  if [ -f '/usr/share/pcmemtest/bootia32.efi' ]; then
    install -Dm '644' '/usr/share/pcmemtest/bootia32.efi' -t \
      '/boot/efi/efi/PCMemTest'
    efibootmgr -c -d "${_SOURCE}" \
      -l '\\efi\PCMemTest\bootia32.efi' -L 'PCMemTest (IA32)' -v
  fi
  if [ -f '/usr/share/pcmemtest/bootx64.efi' ]; then
    install -Dm '644' '/usr/share/pcmemtest/bootx64.efi' -t \
      '/boot/efi/efi/PCMemTest'
    efibootmgr -c -d "${_SOURCE}" \
      -l '\\efi\PCMemTest\bootx64.efi' -L 'PCMemTest' -v
  fi
  ;;
esac