Refactoring + WireGuard support

scripts/backup.sh

@@ -1,31 +0,0 @@
-#!/bin/bash
-install_user=$(</etc/pivpn/INSTALL_USER)
-install_home=$(grep -m1 "^${install_user}:" /etc/passwd | cut -d: -f6)
-install_home=${install_home%/} # remove possible trailing slash
-backupdir=pivpnbackup
-openvpndir=/etc/openvpn
-ovpnsdir=${install_home}/ovpns
-date=$(date +%Y-%m-%d-%H%M%S)
-
-backup_openvpn(){
-  if [[ ! -d $install_home/$backupdir ]]; then
-     mkdir $install_home/$backupdir
-  fi
-  cp -r $openvpndir $ovpnsdir $backupdir 2&>1
-  backupzip=$date-pivpnbackup.tgz
-  tar -czf $backupzip -C ${install_home} $backupdir 2&>1
-  echo -e "Backup crated to $install_home/$backupdir/$backupzip \nTo restore the backup, follow instructions at:\nhttps://github.com/pivpn/pivpn/wiki/FAQ#how-can-i-migrate-my-configs-to-another-pivpn-instance" 
-}
-
-
-if [[ ! $EUID -eq 0 ]];then
-  if [[ $(dpkg-query -s sudo) ]];then
-        export SUDO="sudo"
-  else
-    echo "::: Please install sudo or run this as root."
-    exit 0
-  fi
-fi
-
-backup_openvpn
-