#!/bin/sh
#---------------------------------*- sh -*-------------------------------------
# =========                 |
# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
#  \\    /   O peration     |
#   \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
#    \\/     M anipulation  |
#------------------------------------------------------------------------------
# License
#     This file is part of OpenFOAM.
#
#     OpenFOAM is free software: you can redistribute it and/or modify it
#     under the terms of the GNU General Public License as published by
#     the Free Software Foundation, either version 3 of the License, or
#     (at your option) any later version.
#
#     OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
#     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
#     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
#     for more details.
#
#     You should have received a copy of the GNU General Public License
#     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
#
# Script
#     foamConfigurePaths
#
# Description
#     hardcode installation directory
#
#------------------------------------------------------------------------------
usage() {
    exec 1>&2
    while [ "$#" -ge 1 ]; do echo "$1"; shift; done
    cat<<USAGE

usage: ${0##*/}
  --foamInstall dir         specify installation directory (e.g. /opt)
  --projectName name        specify project name (e.g. openfoam220)
  --projectVersion ver      specify project version (e.g. 2.2.0)
  --archOption arch         specify architecture option (only 32 or 64 applicable)
  --paraviewInstall dir     specify ParaView_DIR (e.g. /opt/paraviewopenfoam3120)
  --paraviewVersion ver     specify ParaView_VERSION (e.g. 3.12.0)
  --scotchArchPath dir      specify SCOTCH_ARCH_PATH (e.g. /opt/OpenFOAM-scotch-6.0.0/)
  --scotchVersion ver       specify SCOTCH_VERSION (e.g. 6.0.0)

* hardcode paths to installation

USAGE
    exit 1
}


# Function to do replacement on file. Checks if any replacement has been done.
# _inlineSed <file> <regexp> <replacement> <msg>
_inlineSed()
{
    file="$1"

    [ -f "$file" ] || {
        echo "Missing file: $file"
        exit 1
    }

    regexp="$2"
    replacement="$3"
    msg="$4"

    cmd='/^[^#]/s@'"$regexp"'@'"$replacement"'@'

    grep -q "$regexp" "$file" && sed -i -e "$cmd" "$file" || \
        (echo "Failed: $msg in $file" && exit 1)

    echo "Okay: $msg in $file"

    return 0
}


[ -f etc/bashrc ] || usage "Please run from top-level directory of installation"

unset foamInstall projectName projectVersion archOption
unset paraviewInstall scotchArchPath

# parse options
while [ "$#" -gt 0 ]
do
    case "$1" in
    -h | -help | --help)
        usage
        ;;
    -foamInstall | --foamInstall)
        [ "$#" -ge 2 ] || usage "'$1' option requires an argument"
        foamInstall="$2"
        # replace foamInstall=...
        _inlineSed \
            etc/bashrc \
            'foamInstall=.*' \
            'foamInstall='"$foamInstall" \
            "Replacing foamInstall setting by '$foamInstall'"
        shift 2
        ;;
   -projectName | --projectName)
        [ "$#" -ge 2 ] || usage "'$1' option requires an argument"
        projectName="$2"
        # replace WM_PROJECT_DIR=...
        _inlineSed \
            etc/bashrc \
            'WM_PROJECT_DIR=.*' \
            'WM_PROJECT_DIR=$WM_PROJECT_INST_DIR/'"$projectName" \
            "Replacing WM_PROJECT_DIR setting by $projectName"
        shift 2
        ;;
   --projectVersion)
        [ "$#" -ge 2 ] || usage "'$1' option requires an argument"
        projectVersion="$2"
        # replace WM_PROJECT_VERSION=...
        echo "Replacing WM_PROJECT_VERSION setting by $projectVersion"
        _inlineSed \
            etc/bashrc \
            'WM_PROJECT_VERSION=.*' \
            'WM_PROJECT_VERSION='"$projectVersion" \
            "Replacing WM_PROJECT_VERSION setting by $projectVersion"

        shift 2
        ;;
    -archOption | --archOption)
        [ "$#" -ge 2 ] || usage "'$1' option requires an argument"
        archOption="$2"
        current_archOption=`grep WM_ARCH_OPTION= etc/bashrc | sed "s/export WM_ARCH_OPTION=//"`
        if [ "$archOption" != "$current_archOption" ]
        then
            # replace WM_ARCH_OPTION=...
            _inlineSed \
                etc/bashrc \
                'WM_ARCH_OPTION=.*' \
                'WM_ARCH_OPTION='"$archOption" \
                "Replacing WM_ARCH_OPTION setting by '$archOption'"
        else
            echo "WM_ARCH_OPTION already set to $archOption"
        fi
        shift 2
        ;;
    -paraviewInstall | --paraviewInstall)
        [ "$#" -ge 2 ] || usage "'$1' option requires an argument"
        paraviewInstall="$2"
        # replace ParaView_DIR=...
        _inlineSed \
            etc/config.sh/paraview \
            'ParaView_DIR=.*' \
            'ParaView_DIR='"$paraviewInstall" \
            "Replacing ParaView_DIR setting by '$paraviewInstall'"
        shift 2
        ;;
    -paraviewVersion | --paraviewVersion)
        [ "$#" -ge 2 ] || usage "'$1' option requires an argument"
        paraviewVersion="$2"
        # replace ParaView_VERSION=...
        _inlineSed \
            etc/config.sh/paraview \
            'ParaView_VERSION=.*' \
            'ParaView_VERSION='"$paraviewVersion" \
            "Replacing ParaView_VERSION setting by '$paraviewVersion'"
        shift 2
        ;;
    -scotchVersion | --scotchVersion)
        [ "$#" -ge 2 ] || usage "'$1' option requires an argument"
        scotchVersion="$2"
        _inlineSed \
            etc/config.sh/scotch \
            'SCOTCH_VERSION=.*' \
            'SCOTCH_VERSION='"$scotchVersion" \
            "Replacing SCOTCH_VERSION setting by '$scotchVersion'"
        shift 2
        ;;
    -scotchArchPath | --scotchArchPath)
        [ "$#" -ge 2 ] || usage "'$1' option requires an argument"
        scotchArchPath="$2"
        _inlineSed \
            etc/config.sh/scotch \
            'SCOTCH_ARCH_PATH=.*' \
            'SCOTCH_ARCH_PATH='"$scotchArchPath" \
            "Replacing SCOTCH_ARCH_PATH setting by '$scotchArchPath'"
        shift 2
        ;;
    *)
        usage "unknown option/argument: '$*'"
        ;;
    esac
done

[ -n "$foamInstall" -o -n "$projectName" -o -n "$projectVersion" -o -n "$archOption" \
-o -n "$paraviewInstall" -o -n "$paraviewVersion" \
-o -n "$scotchVersion" -o -n "$scotchArchPath" \
] || usage "Please specify at least one configure option"

#echo "Replacing WM_PROJECT setting by '$projectName'"
#sed -i -e 's@WM_PROJECT=.*@WM_PROJECT='"$projectName@" etc/bashrc

# Set WM_MPLIB=SYSTEMOPENMPI always
_inlineSed \
    etc/bashrc \
    'export WM_MPLIB=.*' \
    'export WM_MPLIB=SYSTEMOPENMPI' \
    "Replacing WM_MPLIB setting by 'SYSTEMOPENMPI'"

## set WM_COMPILER_TYPE=system always
#_inlineSed \
#    etc/bashrc \
#    'WM_COMPILER_TYPE=.*' \
#    'WM_COMPILER_TYPE=system' \
#    "Replacing WM_COMPILER_TYPE setting by 'system'"

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