#!/bin/sh
#------------------------------------------------------------------------------
# =========                 |
# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
#  \\    /   O peration     |
#   \\  /    A nd           | Copyright (C) 2011-2018 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
#     Allwmake
#
# Description
#     Build script for ThirdParty
#
#------------------------------------------------------------------------------
# run from third-party directory only
cd ${0%/*} || exit 1
wmakeCheckPwd "$WM_THIRD_PARTY_DIR" || {
    echo "Error: Current directory is not \$WM_THIRD_PARTY_DIR"
    echo "    The environment variables are inconsistent with the installation."
    echo "    Check the OpenFOAM entries in your dot-files and source them."
    exit 1
}
[ -n "$FOAM_EXT_LIBBIN" ] || {
    echo "Error: FOAM_EXT_LIBBIN not set"
    echo "    Check the OpenFOAM entries in your dot-files and source them."
    exit 1
}
. etc/tools/ThirdPartyFunctions
#------------------------------------------------------------------------------

# export WM settings in a form that GNU configure recognizes
[ -n "$WM_CC" ]         &&  export CC="$WM_CC"
[ -n "$WM_CXX" ]        &&  export CXX="$WM_CXX"
[ -n "$WM_CFLAGS" ]     &&  export CFLAGS="$WM_CFLAGS"
[ -n "$WM_CXXFLAGS" ]   &&  export CXXFLAGS="$WM_CXXFLAGS"
[ -n "$WM_LDFLAGS" ]    &&  export LDFLAGS="$WM_LDFLAGS"

echo
echo ========================================
echo Start ThirdParty Allwmake
echo ========================================
echo


echo ========================================
echo Build MPI libraries if required
echo
case "$WM_MPLIB" in
OPENMPI)
    if [ -r $MPI_ARCH_PATH/lib${WM_COMPILER_LIB_ARCH}/libmpi.so ]
    then
        echo "    have $WM_MPLIB shared library ($FOAM_MPI)"
        echo
    elif [ -r $MPI_ARCH_PATH/lib${WM_COMPILER_LIB_ARCH}/libmpi.a ]
    then
        echo "    have $WM_MPLIB static library ($FOAM_MPI)"
        echo
    else
    (
        set -x
        cd "${MPI_ARCH_PATH##*/}" || exit 1    # change to openmpi-VERSION

        [ -e Makefile ] && make distclean 2>/dev/null
        rm -rf $MPI_ARCH_PATH

        # start with GridEngine support,
        # it can be built without external libraries
        configOpt="--with-sge"

        # Infiniband support
        # if [ -d /usr/local/ofed -a -d /usr/local/ofed/lib64 ]
        # then
        #     configOpt="$configOpt --with-openib=/usr/local/ofed"
        #     configOpt="$configOpt --with-openib-libdir=/usr/local/ofed/lib64"
        # fi

        ./configure \
            --prefix=$MPI_ARCH_PATH \
            --disable-orterun-prefix-by-default \
            --enable-shared --disable-static \
            --enable-mpi-thread-multiple \
            --libdir=$MPI_ARCH_PATH/lib${WM_COMPILER_LIB_ARCH} \
            --enable-mpi-fortran=none \
            --disable-mpi-profile \
            $configOpt \
            ;

        make -j $WM_NCOMPPROCS && make install
        make distclean
    )
    fi
    ;;

MPICH)
    if [ -r $MPI_ARCH_PATH/lib/libmpich.so ]
    then
        echo "    have $WM_MPLIB shared library ($FOAM_MPI)"
        echo
        echo
    elif [ -r $MPI_ARCH_PATH/lib/libmpich.a ]
    then
        echo "    have $WM_MPLIB static library ($FOAM_MPI)"
        echo
    else
    (
        set -x
        cd $MPI_HOME || exit 1    # change to mpich-VERSION

        [ -e Makefile ] && make distclean 2>/dev/null
        rm -rf $MPI_ARCH_PATH
        rm util/machines/machines.*

        ./configure \
            --prefix=$MPI_ARCH_PATH \
            --without-mpe \
            --disable-f77 \
            --disable-f90 \
            --disable-f90modules \
            --disable-mpedbg \
            --disable-devdebug \
            --disable-debug \
            --enable-sharedlib=$MPI_ARCH_PATH/lib \
            --with-device=ch_p4 \
            ;

        # For MPICH2 below 1.5a1 uncomment this line and comment next
        # make && make install

        # For MPICH2 1.5a1 or above
        make -j $WM_NCOMPPROCS && make install

        make distclean

        if [ -r $MPI_ARCH_PATH ]
        then
            cd $MPI_ARCH_PATH/bin
            for file in *
            do
                sed s%$MPI_ARCH_PATH%'$MPI_ARCH_PATH'%g $file > temp.$$
                mv temp.$$ $file
                chmod 0755 $file
            done

            cd $MPI_ARCH_PATH/lib

            if [ -r libmpich.so.1.0 ]
            then
                rm *.so
                ln -s libmpich.so.1.0 libmpich.so
            fi
        fi
    )
    fi
    ;;

esac


# get SCOTCH_VERSION, SCOTCH_ARCH_PATH
if settings=`$WM_PROJECT_DIR/bin/foamEtcFile config.sh/scotch`
then
    . $settings
else
    echo
    echo "Error: no config.sh/scotch settings"
    echo
fi

# building scotch is still a bit of a pain
echo ========================================
echo "Build Scotch decomposition library $SCOTCH_VERSION"
echo "    $SCOTCH_ARCH_PATH"

# this needs generalizing for any compiler, since it's hard-coded to GCC
scotchMakefile=../../etc/wmakeFiles/scotch/Makefile.inc.i686_pc_linux2.shlib-OpenFOAM

if [ -f $SCOTCH_ARCH_PATH/include/scotch.h \
  -a -r $FOAM_EXT_LIBBIN/libscotch.so \
  -a -r $FOAM_EXT_LIBBIN/libscotcherrexit.so ]
then
    echo "    scotch header in $SCOTCH_ARCH_PATH/include"
    echo "    scotch libs   in $FOAM_EXT_LIBBIN"
    echo
else
(
    set -x
    cd $SCOTCH_VERSION/src || exit 1

    prefixDIR=$SCOTCH_ARCH_PATH
    libDIR=$FOAM_EXT_LIBBIN

    mkdir -p $prefixDIR 2>/dev/null
    mkdir -p $libDIR 2>/dev/null

    configOpt="prefix=$prefixDIR libdir=$libDIR"

    if [ -f $scotchMakefile ]
    then
        rm -f Makefile.inc
        ln -s $scotchMakefile Makefile.inc
    fi

    [ -f Makefile.inc ] || {
        echo " Error: scotch needs an appropriate Makefile.inc"
        exit 1
    }

    # handle non-gcc compilers
    unset configEnv
    [ "${WM_CC:-gcc}" != gcc ] && configEnv="CC=$WM_CC CCS=$WM_CC"

    make realclean 2>/dev/null  # for safety

    make -j $WM_NCOMPPROCS $configEnv scotch \
    && make $configOpt install

    # cleanup, could also remove Makefile.inc
    make realclean 2>/dev/null
)
fi

# verify existence of scotch include
[ -f $SCOTCH_ARCH_PATH/include/scotch.h ] || {
    echo
    echo "    WARNING: required include file 'scotch.h' not found!"
    echo
}


# build ptscotch if MPI (ThirdParty or system) is available
if [ "${FOAM_MPI:-dummy}" != dummy ]
then
    echo ========================================
    echo "Build PTScotch decomposition library $SCOTCH_VERSION (uses MPI)"
    echo "    $SCOTCH_ARCH_PATH"
    echo

    if [ -f $SCOTCH_ARCH_PATH/include/$FOAM_MPI/ptscotch.h \
      -a -r $FOAM_EXT_LIBBIN/$FOAM_MPI/libptscotch.so \
      -a -r $FOAM_EXT_LIBBIN/$FOAM_MPI/libptscotcherrexit.so ]
    then
        echo "    ptscotch header in $SCOTCH_ARCH_PATH/include/$FOAM_MPI"
        echo "    ptscotch libs   in $FOAM_EXT_LIBBIN/$FOAM_MPI"
        echo
    else
    (
        set -x
        cd $SCOTCH_VERSION/src || exit 1

        prefixDIR=$SCOTCH_ARCH_PATH
        libDIR=$FOAM_EXT_LIBBIN/$FOAM_MPI
        incDIR=$SCOTCH_ARCH_PATH/include/$FOAM_MPI

        mkdir -p $prefixDIR 2>/dev/null
        mkdir -p $libDIR 2>/dev/null

        configOpt="prefix=$prefixDIR libdir=$libDIR includedir=$incDIR"

        if [ -f $scotchMakefile ]
        then
            rm -f Makefile.inc
            ln -s $scotchMakefile Makefile.inc
        fi

        [ -f Makefile.inc ] || {
            echo " Error: scotch needs an appropriate Makefile.inc"
            exit 1
        }

        # handle non-gcc compilers
        unset configEnv
        [ "${WM_CC:-gcc}" != gcc ] && configEnv="CC=$WM_CC CCS=$WM_CC"

        make realclean 2>/dev/null  # for safety

        make -j $WM_NCOMPPROCS $configEnv ptscotch \
        && make $configOpt install

        # cleanup, could also remove Makefile.inc
        make realclean 2>/dev/null
    )
    fi

    # verify existence of scotch include
    [ -f $SCOTCH_ARCH_PATH/include/$FOAM_MPI/ptscotch.h ] || {
        echo
        echo "    WARNING: required include file 'ptscotch.h' not found!"
        echo
    }
fi


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

# Metis is optional
echo ========================================
echo Build Metis decomposition

# get METIS_VERSION, METIS_ARCH_PATH
if settings=`$WM_PROJECT_DIR/bin/foamEtcFile config.sh/metis`
then
    . $settings
fi
if [ -d "$METIS_VERSION" ]
then

    if [ -f $METIS_ARCH_PATH/include/metis.h \
      -a -r $FOAM_EXT_LIBBIN/libmetis.so ]
    then
        echo "    metis header in $METIS_ARCH_PATH/include"
        echo "    metis libs   in $FOAM_EXT_LIBBIN"
        echo
    else
    (
        set -x
        cd $METIS_VERSION  || exit 1

        # Change user settings automatically
        sed -i -e 's=\(#define IDXTYPEWIDTH\).*=\1 '$WM_LABEL_SIZE'=' \
            include/metis.h

        make config shared=1 prefix=$METIS_ARCH_PATH
        make -j $WM_NCOMPPROCS install
        cp $METIS_ARCH_PATH/lib/libmetis.so $FOAM_EXT_LIBBIN
    )
    fi
else
    echo "    optional component Metis was not found"
fi


echo
echo ========================================
echo Done ThirdParty Allwmake
echo ========================================
echo


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