#----------------------------------*-sh-*--------------------------------------
# =========                 |
# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
#  \\    /   O peration     |
#   \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
#    \\/     M anipulation  | Copyright (C) 2017 OpenCFD Ltd.
#------------------------------------------------------------------------------
# License
#     This file is part of OpenFOAM, licensed under GNU General Public License
#     <http://www.gnu.org/licenses/>.
#
# File
#     etc/config.sh/functions
#
# Description
#     Initialization script functions for the bashrc environment
#     Sourced from OpenFOAM-<VERSION>/etc/config.sh/bashrc
#
#------------------------------------------------------------------------------

if [ -z "$WM_SHELL_FUNCTIONS" ]
then
    # Not previously loaded/defined - define now

    # Temporary environment variable to track loading/unloading of functions
    WM_SHELL_FUNCTIONS=loaded

    # Prefix to PATH
    _foamAddPath()
    {
        [ $# -gt 0 ] && export PATH=$1:$PATH
    }

    # Prefix to LD_LIBRARY_PATH
    _foamAddLib()
    {
        [ $# -gt 0 ] && export LD_LIBRARY_PATH=$1:$LD_LIBRARY_PATH
    }

    # Prefix to MANPATH
    _foamAddMan()
    {
        [ $# -gt 0 ] && export MANPATH=$1:$MANPATH
    }

    # Source an etc file, possibly with some verbosity
    # - use eval to avoid intermediate variables (ksh doesn't have 'local')
    if [ "$FOAM_VERBOSE" -a "$PS1" ]
    then
        _foamEtc(){ eval "$($WM_PROJECT_DIR/bin/foamEtcFile -sh-verbose $@)"; }
    else
        _foamEtc(){ eval "$($WM_PROJECT_DIR/bin/foamEtcFile -sh $@)"; }
    fi

    # Evaluate command-line parameters
    _foamEval()
    {
        while [ $# -gt 0 ]
        do
            case "$1" in
            -*)
                # Stray option (not meant for us here) -> get out
                break
                ;;
            *=)
                # name=       -> unset name
                [ "$FOAM_VERBOSE" -a "$PS1" ] && echo "unset ${1%=}" 1>&2
                eval "unset ${1%=}"
                ;;
            *=*)
                # name=value  -> export name=value
                [ "$FOAM_VERBOSE" -a "$PS1" ] && echo "export $1" 1>&2
                eval "export $1"
                ;;
            *)
                # Filename: source it
                if [ -f "$1" ]
                then
                    [ "$FOAM_VERBOSE" -a "$PS1" ] && echo "Using: $1" 1>&2
                    . "$1"
                else
                    _foamEtc -silent "$1"
                fi
                ;;
            esac
            shift
        done
    }

else
    # Was previously loaded/defined - now unset

    unset -f _foamAddPath _foamAddLib _foamAddMan 2>/dev/null
    unset -f _foamEtc _foamEval 2>/dev/null
    unset WM_SHELL_FUNCTIONS

fi

#------------------------------------------------------------------------------