debian-config-functions

#!/bin/bash
#
# Copyright (c) 2017 Igor Pecovnik, igor.pecovnik@gma**.com
#
# This file is licensed under the terms of the GNU General Public
# License version 2. This program is licensed "as is" without any
# warranty of any kind, whether express or implied.



#-----------------------------------------------------------------------------------------------------------------------------------------#
# gather info about the board and start with loading menu
#
DIALOG_CANCEL=1
DIALOG_ESC=255

[[ -f /etc/armbian-release ]] && source /etc/armbian-release && ARMBIAN="Armbian $VERSION $IMAGE_TYPE";
DISTRO=$(lsb_release -is)
DISTROID=$(lsb_release -sc)
KERNELID=$(uname -r)
[[ -z "${ARMBIAN// }" ]] && ARMBIAN="$DISTRO $DISTROID"
BACKTITLE="Configuration utility, $ARMBIAN, https://www.armbian.com"
TITLE="$BOARD_NAME "
DEFAULT_ADAPTER=$(ip -4 route ls | grep default | grep -Po '(?<=dev )(\S+)')
[[ -z "${DEFAULT_ADAPTER// }" ]] && DEFAULT_ADAPTER="lo"
OVERLAYDIR="/boot/dtb/overlay";
[[ "$LINUXFAMILY" == "sunxi64" ]] && OVERLAYDIR="/boot/dtb/allwinner/overlay";
dialog --backtitle "$BACKTITLE" --title "Please wait" --infobox "\nLoading Armbian configuration utility ... " 5 45
sleep 1


#-----------------------------------------------------------------------------------------------------------------------------------------#
# check if package manager is doing something
#
function is_package_manager_running() {
  fuser -s /var/lib/dpkg/lock
  if [[ $? = 0 ]]; then
    # 0 = true
	dialog --colors --title " \Z1Error\Z0 " --backtitle "$BACKTITLE" --no-collapse --msgbox \
	"\n\Z1Package manager is running in the background. \n\nCan't proceed. Try again later." 9 53
    return 0
  else
    # 1 = false
    return 1
  fi
}