#!/bin/sh
#------------------------------------------------------------------------------
# =========                 |
# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
#  \\    /   O peration     |
#   \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
#    \\/     M anipulation  | Copyright (C) 2016 OpenCFD Ltd.
#------------------------------------------------------------------------------
# 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 "    $MPI_ARCH_PATH"
case "$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
    (
        # configuration options:
        # Start with GridEngine support - builds without external libraries
        configOpt="--with-sge"

        # Add InfiniBand support
        ibDir=/usr/local/ofed
        ibLib=$infbDIR/lib${WM_COMPILER_LIB_ARCH}
        if [ -d "$ibDir" -a -d "$ibLib" ]
        then
            configOpt="$configOpt --with-verbs=$ibDir --with-verbs-lib=$ibLib"
        fi

        # end of configuration options
        # ----------------------------
        mpiPACKAGE="${MPI_ARCH_PATH##*/}"
        sourceDIR=$WM_THIRD_PARTY_DIR/$mpiPACKAGE
        buildDIR=$buildBASE/$mpiPACKAGE

        cd $sourceDIR || exit 1
        [ -e Makefile ] && make distclean 2>/dev/null

        rm -rf $MPI_ARCH_PATH
        rm -rf $buildDIR
        mkdir -p $buildDIR
        cd $buildDIR

        set -x
        $sourceDIR/configure \
            --prefix=$MPI_ARCH_PATH \
            --disable-orterun-prefix-by-default \
            --enable-shared --disable-static \
            --libdir=$MPI_ARCH_PATH/lib${WM_COMPILER_LIB_ARCH} \
            --enable-mpi-fortran=none \
            --disable-mpi-profile \
            $configOpt \
        && make -j $WM_NCOMPPROCS \
        && make install \
        && echo "Built: $mpiPACKAGE"
    ) || {
        echo "Error building: $mpiPACKAGE"
        exit 1
    }
    fi
    ;;

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

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


#------------------------------------------------------------------------------
# building scotch is still a bit of a pain

# 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

echo
echo ========================================
echo "Build Scotch decomposition library $SCOTCH_VERSION"
echo "    $SCOTCH_ARCH_PATH"

# this needs generalizing
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 $FOAM_EXT_LIBBIN"
elif [ -d "$SCOTCH_VERSION" ]
then
(
    cd $SCOTCH_VERSION/src || exit 1
    applyPatch $SCOTCH_VERSION ..       # patch at parent-level

    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
)
else
    echo "    Optional component (SCOTCH) was not found"
fi

# build ptscotch if MPI (ThirdParty or system) is available
# and there is a scotch include available (ie, normal scotch was built)
if [ "${FOAM_MPI:-dummy}" != dummy ] && \
   [ -f $SCOTCH_ARCH_PATH/include/scotch.h ] || \
{
    echo
    echo "    WARNING: skipping pt-scotch - 'scotch.h' include file not found!"
    false
}
then
    echo
    echo ========================================
    echo "Build pt-scotch decomposition library $SCOTCH_VERSION (with $FOAM_MPI)"
    echo "    $SCOTCH_ARCH_PATH"

    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"
    else
    (
        echo
        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!"
    }
fi


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

# Metis is optional
echo
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

        if [ "$WM_PRECISION_OPTION" = "DP" ]
        then
            FLOAT_PRECISION=64
        elif [ "$WM_PRECISION_OPTION" = "SP" ]
        then
            FLOAT_PRECISION=32
        else
            echo " Metis pre-configure error:"
            echo "    WM_PRECISION_OPTION is neither DP nor SP"
            exit 1
        fi

        # Change user settings automatically
        sed -i -e 's=\(#define IDXTYPEWIDTH\).*=\1 '$WM_LABEL_SIZE'=' \
               -e 's=\(#define REALTYPEWIDTH\).*=\1 '$FLOAT_PRECISION'=' \
            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


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

warnBuildIssues()
{
    echo
    echo "    ---------------------------------------------------"
    echo "    Optional component ($1) had build issues"
    echo "    OpenFOAM will nonetheless remain largely functional"
    echo "    ---------------------------------------------------"
    echo
}

warnNotFound()
{
    echo "    Optional component ($1) was not found"
    echo
}


# CGAL is optional
echo
echo ========================================
echo Build CGAL
if [ -d "$CGAL_ARCH_PATH/include" \
  -a -r "$CGAL_ARCH_PATH/lib/libCGAL.so" ]
then
    # first some information about boost
    if [ -d "$BOOST_ARCH_PATH/include/boost" \
      -a -r "$BOOST_ARCH_PATH/lib/libboost_system.so" ]
    then
        echo "    BOOST headers in $BOOST_ARCH_PATH/include"
        echo "    BOOST libs    in $BOOST_ARCH_PATH/lib"
    elif [ -d "/usr/include/boost" \
        -a -r "/usr/lib${WM_COMPILER_LIB_ARCH}/libboost_system.so" ]
    then
        echo "    BOOST headers in /usr/include"
        echo "    BOOST libs    in /usr/lib${WM_COMPILER_LIB_ARCH}"
    fi
    echo "    CGAL  headers in $CGAL_ARCH_PATH/include"
    echo "    CGAL  libs    in $CGAL_ARCH_PATH/lib"
elif [ -n "$CGAL_ARCH_PATH" ]
then
    ./makeCGAL || warnBuildIssues CGAL
else
    warnNotFound CGAL
fi


# FFTW is optional
echo
echo ========================================
echo Build FFTW
if [ -d "$FFTW_ARCH_PATH/include" \
  -a -r "$FFTW_ARCH_PATH/lib$WM_COMPILER_LIB_ARCH/libfftw3.so" ]
then
    echo "    FFTW  headers in $FFTW_ARCH_PATH/include"
    echo "    FFTW  libs    in $FFTW_ARCH_PATH/lib$WM_COMPILER_LIB_ARCH"
elif [ -n "$FFTW_ARCH_PATH" ]
then
    ./makeFFTW || warnBuildIssues FFTW
else
    warnNotFound FFTW
fi


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

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

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