spider/setmooseenv.sh

#################################################
# This scripts sets an environment to work with #
# Python 2.7, Clang, OpenMPI and PETSc          #
#                                               #
# To use, run                                   #
#     source <this_script>                      #
#################################################

# Compiler Variables
# Set MPI with Clang
export OMPI_CC=clang
export OMPI_CXX=clang++
# Use MPI
export CC=mpicc
export CXX=mpicxx
export FC=mpif90
export F77=mpif77
export F90=mpif90

# PETSc
export PETSC_DIR=/opt/petsc/linux-c-opt

# JOB Count (the number of cores available on this machine)
export MOOSE_JOBS=4
# Set the default language to English (useful when
# communicating with moose-users and moose-devs)
export LANG=en_US.UTF-8 LANGUAGE=en_US.UTF-8

# Load the virtual environment (for installation, see
# https://wiki.archlinux.org/index.php/Python/Virtual_environment)
# * Get Python version (select only the second column, space
# as separator)
pyver=$(python --version |
            awk -F" " '{print $NF}')

if [[ ! "$pyver" == 2.* ]]; then
    # MOOSE needs python2.7
    # Check if python2.7 is available
    # * Preset a value
    py2=python2.7;
    # * Erase preset, if there is no executable
    which "$py2" &>/dev/null ||  py2="";
    # * Check if the dummy variable was set (if there
    # * is python2.7)
    if [[ -z "$py2" ]]; then
        # Print warning and exit if there is no python2.7
        printf "MOOSE needs python2.7, ";
        printf "and it seems that it is not ";
        printf "available.\n";
        # * If python2.7 exists, check for virtualenv
        # * (send any error output to a hole)
    elif [[ $(which virtualenv 2>/dev/null) ]]; then
        # ** If python3 is default, there is virtualenv
        # ** and python2.7 is available, use or create virtual
        # ** environment for python2.7
        printf "MOOSE needs python2.7, checking for ";
        printf "virtualenv.\n";
        # TODO
        printf "(This code is dumb, ";
        if [ -f venv/bin/activate ] && \
               [ -f venv/bin/"$py2" ]; then
            printf "found venv/bin/$py2, ";
            printf "using venv/bin/activate).\n";
        else
            printf "it may be that you already ";
            printf "have a virtual environment, sorry).\n";
            virtualenv -p "$py2" venv || exit
            printf "Making the virtualenv relocatale (relative ";
            printf ".pth files)\n";
            virtualenv --relocatable -p "$py2" venv || exit;
            # Could not create virtual environment
        fi;
        printf "Activating the virtual environment\n"
        source venv/bin/activate || exit;
        # Exits here if virtual environment didn't run
    else
        printf "MOOSE needs python2.7, ";
        printf "and it seems that virtualenv is not ";
        printf "available.\n";
    fi;
fi
printf "Virtual environment ready\n";