bash

export EESSI_PILOT_VERSION="2020.09"
export PS1="[EESSI pilot $EESSI_PILOT_VERSION] $ "

export EESSI_PREFIX=/cvmfs/pilot.eessi-hpc.org/$EESSI_PILOT_VERSION
if [ -d $EESSI_PREFIX ]; then
  echo "Found EESSI pilot repo @ $EESSI_PREFIX!"

  export EPREFIX=$EESSI_PREFIX/compat/$(uname -m)
  if [ -d $EPREFIX ]; then

    # determine subdirectory in software layer
    # note: eessi_software_subdir_for_host.py will pick up value from $EESSI_SOFTWARE_SUBDIR_OVERRIDE if it's defined!
    EESSI_PYTHON=$EPREFIX/usr/bin/python3
    export EESSI_SOFTWARE_SUBDIR=$($EESSI_PYTHON ${EESSI_PREFIX}/init/eessi_software_subdir_for_host.py $EESSI_PREFIX)
    if [ ! -z $EESSI_SOFTWARE_SUBDIR ]; then

        echo "Using ${EESSI_SOFTWARE_SUBDIR} as software subdirectory."
        export EESSI_SOFTWARE_PATH=$EESSI_PREFIX/software/$EESSI_SOFTWARE_SUBDIR
        if [ -d $EESSI_SOFTWARE_PATH ]; then

          # init Lmod
          echo "Initializing Lmod..."
          source $EPREFIX/usr/lmod/*/init/bash

          # prepend location of modules for EESSI software stack to $MODULEPATH
          export EESSI_MODULEPATH=$EESSI_SOFTWARE_PATH/modules/all
          echo "Prepending $EESSI_MODULEPATH to \$MODULEPATH..."
          module use $EESSI_MODULEPATH

          echo
          echo "*** Known problems in the ${EESSI_PILOT_VERSION} pilot software stack ***"
          echo
          echo "1) No Lmod cache has been generated yet for the module files included"
          echo "   in the ${EESSI_PILOT_VERSION} pilot software stack."
          echo "   As a result, 'module' commands may be somewhat slow."
          echo "   (see also https://github.com/EESSI/software-layer/issues/10)"
          echo
          echo

          echo "Environment set up to use EESSI pilot software stack, have fun!"

        else
          echo "ERROR: EESSI software layer at $EESSI_SOFTWARE_PATH not found!" >&2
          false
        fi
    else
        echo "ERROR: no value set for \$EESSI_SOFTWARE_SUBDIR" >*&2
        false
    fi
  else
    echo "ERROR: Compatibility layer directory %s not found!" >&2
    false
  fi
else
  echo "ERROR: EESSI pilot repository at $EESSI_PREFIX not found!" >&2
  false
fi