#!/usr/bin/bash
#
# Copyright (c) 2009 Red Hat Inc.
# Copyright (c) 2009 Jiri Skala <jskala@redhat.com>
# 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 Intel Corporation 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.
#
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#

set_bltk_paths()
{
  WHICH_BLTK=`which bltk`
  RETCODE=$?

  if [[ $RETCODE = 0 ]]
  then
    file -b $WHICH_BLTK | grep symbolic > /dev/null
    TMPCODE=$?
    if [[ $TMPCODE = 0 ]]
    then
      BLTK_MAIN=`readlink -f $WHICH_BLTK`
    else
      BLTK_MAIN=$WHICH_BLTK
    fi
    BLTK_ROOT=`echo $BLTK_MAIN | sed 's|/bin/.*$||'`

    root_len=`echo $BLTK_ROOT | wc -c`
    main_len=`echo $BLTK_MAIN | wc -c`
    
    if [[ $root_len = $main_len ]]
    then
      RETCODE=2
    else
      [ -f "$BLTK_CONF" ] && . "$BLTK_CONF"

      [ -z $BLTK_HOME ] && BLTK_HOME=~/.bltk

      export BLTK_ROOT
      export BLTK_BIN=$BLTK_ROOT/bin
      export BLTK_TMP=$BLTK_HOME/tmp
    fi
  fi

  return $RETCODE
}

