# -*- shell-script -*-
  
#
# shell script command line parameter-processing for:
#
# mkboot - generic boot loader installer.
#
# @Author:  Tong SUN
# @Release: $ $Revision: 1.1 $, under the BSD license
# @HomeURL: http://xpt.sourceforge.net/
#
  
# @WARNING: Do NOT modify this file without prior contacting the author. 
# This script is use for the command line logic processing. It should be 
# as dumb as possible. I.e., it should NOT be more complicated than
# copy-paste-and-rename from existing code. All business logic processing
# should be handled in the main script, where it belongs.
  
# {{{ LICENSE: 
  
# Copyright (c) 2006-2008, Tong Sun, xpt.sf.net
# All rights reserved.
# 
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
# 
# * Redistributions of source code must retain the above copyright notice,
#   this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
#   notice, this list of conditions and the following disclaimer in the
#   documentation and/or other materials provided with the distribution.
# * Neither the name of the XPT nor the names of its contributors may be
#   used to endorse or promote products derived from this software without
#   specific prior written permission.
# 
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR
# CONTRIBUTORS 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.
  
# }}} 
  
  
eval set -- `getopt \
  -o +b:maih --long \
    boot:,tombr,active,initmbr,slmbr,distro:,lilo:,syslin:,clear,help \
  -- "$@"`
  
while :; do
  case "$1" in
  
  # == Installation options
  --boot|-b)           # boot loader [syslinux|grub|grub4dos]
    shift; _opt_boot="$1"
    ;;
  --tombr|-m)          # toggle installing to MBR (on) or partition (off)
    if [ "$_opt_tombr" ]; then _opt_tombr=
    else _opt_tombr=T; fi
    ;;
  --active|-a)         # toggle activating current partition
    if [ "$_opt_active" ]; then _opt_active=
    else _opt_active=T; fi
    ;;
  --initmbr|-i)        # toggle initialzing MBR 
    if [ "$_opt_initmbr" ]; then _opt_initmbr=
    else _opt_initmbr=T; fi
    ;;
  --slmbr)             # toggle using MBR from syslinux (on) or lilo (off)
    if [ "$_opt_slmbr" ]; then _opt_slmbr=
    else _opt_slmbr=T; fi
    ;;
  
  # == Distro specific options
  --distro)            # distro name
    shift; _opt_distro="$1"
    ;;
  --lilo)              # where is lilo
    shift; _opt_lilo="$1"
    ;;
  --syslin)            # where is syslinux
    shift; _opt_syslin="$1"
    ;;
  
  # == Other options
  --clear)             # toggle clearing screen between steps
    if [ "$_opt_clear" ]; then _opt_clear=
    else _opt_clear=T; fi
    ;;
  --help|-h)           # show this help
    _opt_help=T
    ;;
  --) 
    shift; break 
    ;;
  *) 
    echo "Internal getopt error ($1)!"; exit 1
    ;;
  esac
  shift
done
  
[ "$_opt_boot" ] || {
  echo "Mandatory option --boot is not set."
  _opt_check_failed=T
}
[ "$_opt_distro" ] || {
  echo "Mandatory option --distro is not set."
  _opt_check_failed=T
}
[ "$_opt_lilo" ] || {
  echo "Mandatory option --lilo is not set."
  _opt_check_failed=T
}
[ "$_opt_syslin" ] || {
  echo "Mandatory option --syslin is not set."
  _opt_check_failed=T
}
  
# End