install.sh

#!/usr/bin/env bash

GRUB_NAME=""

function compile_grub() {
  echo -e "\e[1m\e[32m==> \e[97mApplying changes...\e[0m"
  ${GRUB_NAME}-mkconfig -o /boot/${GRUB_NAME}/grub.cfg
  echo -e "\e[1m\e[34m  -> \e[97mTheme successfuly applied! "
  echo -e "\e[1m\e[34m  -> \e[97m@osmanonurkoc"
  sleep 2
}

function update_grub_file() {
  grep -v GRUB_THEME < /etc/default/grub > /tmp/clean_grub
  mv /tmp/clean_grub /etc/default/grub
  echo "GRUB_THEME=/boot/${GRUB_NAME}/themes/Papirus/theme.txt" >> /etc/default/grub
}

function copy_papirus_files() {
  echo -e "\e[1m\e[32m==> \e[97mDownloading files...\e[0m"
  git clone https://github.com/osmanonurkoc/Papirus-Grub-Theme /tmp/Papirus-Grub-Theme
  echo -e "\e[1m\e[32m==> \e[97mCopying files...\e[0m"
  cp -rf /tmp/Papirus-Grub-Theme/Papirus /boot/${GRUB_NAME}/themes/
}

function main() {

  # Check user is root
  if [ $UID == 0 ]; then
	echo "Yes, You are root!"
  else
  	echo "No, You must be root!"
	exit 1
  fi

  # Check which grub
  if [ -d "/boot/grub" ]; then
	  GRUB_NAME="grub"
  else
	  GRUB_NAME="grub2"
  fi
  copy_papirus_files

  echo -e "\e[1m\e[97m  You must set the theme in your GRUB config file,"
  while : ;do
    if [ "$answer" = "g" ];then
      echo -e "\e[1m\e[97m  You didn't give a valid option, try again."
    else
      read -p "  Would you like to do it now? [y/n] " -t 10 answer
      echo -e "\e[0m"
      if [ "$answer" = "y" ];then
	# backup old grub file
	cp /etc/default/grub /tmp/grub$(date '+%m-%d-%y_%H:%M:%S')
	update_grub_file
        compile_grub
	break
      elif [ "$answer" = "n" ];then
        break
      fi
      let answer=g
    fi
  done

}

main "$@"
exit 0