#!/bin/bash

# slackupdr / slackupdr start script
#
# Copyright 2019-2022 Stu Miller, Colorado, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# ------------------------------------------------------------------------------
# source config & library
setup () {
  # local variables & arrays
  declare conf="/etc/slackpkg/${0##*/}.conf" \
    lib="/usr/libexec/slackpkg/${0##*/}_lib.gz"

  # test conf exists
  if [ -e $conf ]; then
    # source config file
    . $conf
  else # FAIL conf exists
    printf '%b' "$conf does not exist\nAborting script!\n"
    exit
  fi # END conf exists

  # test library exists & compressed
  if [ -e $lib ] && gzip -t $lib; then
    # source library using process substitution
    . <(zcat $lib)
  else # FAIL library exists & compressed
    printf '%b' "$lib does not exist\nAborting script!\n"
    exit
  fi # END library exists & compressed
} # END setup
# ------------------------------------------------------------------------------

# setup then call main function & pass script arguments
setup
main "$@"
