#! /bin/sh
#----------------------------------------------------------------------------
# /var/install/bin/add-menu - add a menu entry
#
# Copyright (c) 2001-2005 The Eisfair Team, c/o Frank Meyer, frank(at)eisfair(dot)org
#
# Creation:	04.11.2001  fm
# Last Update:  $Id$
#
# Usage:
#
# old style version (for non XML-menus)
# -------------------------------------
#
# add-menu menu-file shell-script comment
#
#          menu-file     absolute filename of menu-file
#
#                        The new entry
#                          shell-script comment
#                        is added to the end of the menu-file
#                        if such a line does not already exist.
#
#          shell-script  absolute filename of a shell-script
#
#                        This shell-scripts is called e.g. to
#                        display a new menu.
#
#          comment       comment to display in the menu
#
# new style version (for XML-menus)
# ---------------------------------
#
# add-menu [-menu] menu-file sub-menu-file comment
# add-menu -script menu-file script-file comment
#
#          -menu          add <menu>-Tag   [default]
#          -script        add <script>-Tag instead of <menu>-Tag
#
#
#          menu-file      filename relativ to menupath /var/install/menu
#
#                         The new entry is added to this menu.
#
#
#          sub-menu-file  filename relativ to menupath /var/install/menu
#
#                         The new entry
#                             <menu file="sub-menu-file">comment</menu>
#                         is added to the end of the menu-file
#                         if such a line does not already exist.
#
#          script-file    filename relativ to /var/install/bin or absolute path
#
#                         The new entry
#                             <script file="script-file">comment</script>
#                         is added to the end of the menu-file
#                         if such a line does not already exist.
#
#
#          comment        text to display in the menu 
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#----------------------------------------------------------------------------

case "$1"
in
    -script)
        shift
        tag="script"
        ;;

    -menu)
        shift
        tag="menu"
        ;;
	
    *)
        tag="menu"
        ;;
esac

menu_file=$1
menu_cmd=$2
shift 2
menu_text="$*"

menu_path='/var/install/menu'

if [ -f "$menu_path/$menu_file" ]
then

    # new behavior
    if grep -q "<$tag file=\"$menu_cmd\"" $menu_path/$menu_file
    then
        exit 0
    fi

    echo "<$tag file=\"$menu_cmd\">$menu_text</$tag>" >>$menu_path/$menu_file
    
else

    # old behavior
    if grep -q "^$menu_cmd " $menu_file
    then
        exit 0
    fi

    echo "$menu_cmd $menu_text" >>$menu_file
    
fi