#! /bin/sh

set -e 

GAP="/usr/bin/gap"

if ! test -x "$GAP"; then
  exit 0;
fi

if test `id -u` = 0; then
  WORKSPACE=/var/lib/gap/workspace
else
  WORKSPACE=$HOME/gap/workspace
fi

case $1 in
delete) echo -n "Deleting GAP workspace $WORKSPACE.gz: "
    rm -f $WORKSPACE.gz
    echo "done.";;
    
''|update) echo -n "Updating GAP workspace $WORKSPACE.gz: "
  rm -f $WORKSPACE.gz
  mkdir -p `dirname $WORKSPACE`
  echo 'SaveWorkspace("'$WORKSPACE'");' | $GAP -q -r -R >/dev/null 
  gzip --best $WORKSPACE
  echo "done.";;
*)
  echo "$0 update"
  echo "  Update GAP workspace in $WORKSPACE.gz"
  echo
  echo "$0 delete"
  echo "  Delete GAP workspace in $WORKSPACE.gz"
  ;;
esac;
