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#!/bin/bash

# $Id: xtwi 804 2016-08-28 17:33:50Z mueller $

#

# Copyright 2013-2016 by Walter F.J. Mueller 

# License disclaimer see LICENSE_gpl_v2.txt in $RETROBASE directory

#

# Xilinx Tool Wrapper script for ISE:

#   define XTWI_PATH

#   usage  xwti 

#

#  Revision History:

# Date         Rev Version  Comment

# 2016-08-28   804   1.2    BUGFIX: add ":." to PATH even under BARE_PATH

# 2016-02-21   735   1.1    use BARE_PATH ect to provide clean environment

# 2013-10-12   539   1.0    Initial version

#

# Note: For Xilinx ISE installations with an install path  holds

#         /ISE_DS        dir with settings(32|64).sh

#         /ISE_DS/ISE    XILINX env var will point here

#

# store arg list on vars (will be dropped later to source scripts)

arglist_val=$@

arglist_num=$#

#

# check whether ISE already setup ($XILINX defined)

if [ -z "$XILINX" ]

then

  # check whether $XTWI_PATH defined

  if [ -z "$XTWI_PATH" ]

  then

    echo "XTWI_PATH not defined"

    exit 1

  fi

  # provide clean environment when BARE_PATH ect defined

  #   add only $RETROBASE/tools/bin and '.' to path

  #   '.' is needed to start ISim tb's, which usually are in cwd

  if [ -n "$BARE_PATH" ]

  then

    export PATH=$BARE_PATH:$RETROBASE/tools/bin:.

    unset LD_LIBRARY_PATH

    if [ -n "$BARE_LD_LIBRARY_PATH" ]

    then

      export LD_LIBRARY_PATH=$BARE_LD_LIBRARY_PATH

    fi

  fi

  # check whether 32 or 64 bit system (uname -m gives 'i686' or 'x86_64')

  if [ `uname -m` = "x86_64" ]

  then

    settings_filename=$XTWI_PATH/ISE_DS/settings64.sh

  else

    settings_filename=$XTWI_PATH/ISE_DS/settings32.sh

  fi

  if [ ! -e "$settings_filename" ]

  then

    echo "can't locate init script '$settings_filename'"

    exit 1

  fi

  # drop arg list, suppress output

  set --

  . $settings_filename > /dev/null

  # check that XILINX defined

  if [ -z "$XILINX" ]

  then

    echo "Failed to setup XILINX"

    exit 1

  fi

else

  echo "XILINX already defined"

fi

if [ $arglist_num != 0 ]

then

  exec $arglist_val

fi