#! /bin/sh
# CVS: $Id$
#
#  This file tries to set the PENCIL_HOME environment variable if it
#  doesn't exist yet, and then adds stuff to your PATH and IDL_PATH.
#
#  If _sourceme_quiet is set, no output is printed, which enables you to
#  put the lines
#    export PENCIL_HOME=[...]
#    _sourceme_quiet=1; . $PENCIL_HOME/sourceme.sh; unset _sourceme_quiet
#  into your .bashrc
#

#  You may or may not want to put the lines
#    setenv PENCIL_HOME [...]
#    . $PENCIL_HOME/sourceme.sh
#  into your .bashrc

if [ -z $PENCIL_HOME ]; then
  echo "pc_findconfig: Need to set PENCIL_HOME first.  Try using the"
  echo "sourceme.??? script in the root of your pencil-code directory"
  echo "or see the manual."
  exit 0
fi


if [ -z $PENCIL_CONFIG ]; then
  #
  # Try to identify position of this machines config in the congif path:
  #
  PC_HOST=`uname -n`
  PC_DOMAIN=`hostname -d`
  PC_SYSTEM=`uname -s`
  config_root=$PENCIL_HOME/config
  for _dir in   $config_root/$PC_SYSTEM/$PC_DOMAIN/$PC_HOST/ \
                    $config_root/$PC_SYSTEM/$PC_HOST.$PC_DOMAIN/ \
                $config_root/$PC_SYSTEM/$PC_HOST/ \
                    $config_root/$PC_SYSTEM/$PC_DOMAIN/ \
                    $config_root/$PC_SYSTEM/ \
                    $config_root/ ;  do
    if ( [ -d $_dir ] && \
         [ -e $_dir/Makefile ]
       ); then
      PENCIL_CONFIG=`cd $_dir; echo $PWD`
      export PENCIL_CONFIG
      break
    fi
  done
  unset _dir

  if [ -z $PENCIL_CONFIG ]; then # no success
    echo "sourceme.sh: Cannot locate home directory of pencil code."
    echo "  Try sourcing me from the home directory itself, or set PENCIL_HOME"
    exit 0
  fi
fi

if [ -z $_sourceme_quiet ]; then echo "PENCIL_CONFIG = <$PENCIL_CONFIG>"; fi