#!/bin/sh
#------------------------------------------------------------------------------
# =========                 |
# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
#  \\    /   O peration     |
#   \\  /    A nd           | www.openfoam.com
#    \\/     M anipulation  |
#------------------------------------------------------------------------------
#     Copyright (C) 2018-2019 OpenCFD Ltd.
#------------------------------------------------------------------------------
# License
#     This file is part of OpenFOAM, licensed under GNU General Public License
#     <http://www.gnu.org/licenses/>.
#
# Script
#     makeHYPRE
#
# Description
#     Build script for HYPRE
#
# ----------------------------------------------
# NO USER-CONFIGURABLE SETTINGS WITHIN THIS FILE
#------------------------------------------------------------------------------
# Dynamic library ending (default is .so)
[ "$(uname -s)" = Darwin ] && EXT_SO=.dylib || EXT_SO=.so

# Short-circuit test for an installation
if [ "$1" = "-test" ]
then
    [ "$#" -eq 2 ] || { echo "${0##*/} -test : needs 1 argument"; exit 1; }
    dir="${2%/}" # <- HYPRE_ARCH_PATH
    if [ -d "$dir/include" ]
    then
        for lib in \
            $FOAM_EXT_LIBBIN/libhypre$EXT_SO \
            $dir/lib/libhypre.a \
            $dir/lib/libhypre$EXT_SO \
            $dir/lib$WM_COMPILER_LIB_ARCH/libhypre.a \
            $dir/lib$WM_COMPILER_LIB_ARCH/libhypre$EXT_SO \
            ;
        do
            if [ -r "$lib" ]
            then
                echo "    hypre include: $dir/include"
                echo "    hypre library: ${lib%/*}"
                exit 0
            fi
        done
    fi
    exit 2
fi
#------------------------------------------------------------------------------
# Run from third-party directory only
cd "${0%/*}" || exit
wmakeCheckPwd "$WM_THIRD_PARTY_DIR" 2>/dev/null || {
    echo "Error (${0##*/}) : not located in \$WM_THIRD_PARTY_DIR"
    echo "    Check your OpenFOAM environment and installation"
    exit 1
}
[ -n "$FOAM_EXT_LIBBIN" ] || {
    echo "Error (${0##*/}) : \$FOAM_EXT_LIBBIN not set"
    echo "    Check your OpenFOAM environment and installation"
    exit 1
}
. etc/tools/ThirdPartyFunctions
#------------------------------------------------------------------------------
_foamConfig hypre

hyprePACKAGE=${hypre_version:-hypre-system}
targetType=libso

#------------------------------------------------------------------------------
usage() {
    exec 1>&2
    while [ "$#" -ge 1 ]; do echo "$1"; shift; done
    cat<<USAGE

usage: ${0##*/} [OPTION] [lib|libso] [HYPRE-VERSION]
options:
  -gcc          Force use of gcc/g++
  -help

* build HYPRE with
      ${hyprePACKAGE:-'unspecified hypre version'}

USAGE
    exit 1
}
#------------------------------------------------------------------------------
exportCompiler          # Compiler info for CMake/configure

# Parse options
while [ "$#" -gt 0 ]
do
    case "$1" in
    '') ;;      # Ignore empty
    -h | -help) usage   ;;
    -gcc)       useGcc  ;;

    lib|libso)
        targetType="$1"
        ;;

    hypre-[0-9]*)
        hyprePACKAGE="${1%%/}"
        unset HYPRE_ARCH_PATH  # Avoid inconsistency
        ;;
    *)
        die "unknown option/argument: '$1'"
        ;;
    esac
    shift
done

[ -n "$hyprePACKAGE" ] || die "The hypre-VERSION was not specified"

# Nothing to build
if _foamIsNone $hyprePACKAGE
then
    echo "Using hypre-none (skip ThirdParty build of HYPRE)"
    exit 0
elif _foamIsSystem $hyprePACKAGE
then
    echo "Using hypre-system"
    exit 0
fi

#------------------------------------------------------------------------------
#
# Build HYPRE
#
#   HYPRE_ARCH_PATH  : installation directory
#   HYPRE_SOURCE_DIR : location of the original sources

HYPRE_SOURCE_DIR=$sourceBASE/$hyprePACKAGE
: "${HYPRE_ARCH_PATH:=$installBASE$WM_SIZE_OPTIONS/$hyprePACKAGE}"

[ -d "$HYPRE_SOURCE_DIR" ] || {
    echo "Missing sources: '$hyprePACKAGE'"
    showDownloadHint HYPER
    exit 1
}


# Compilers
CC="$(whichMpicc)"
CXX="$(whichMpicxx)"

echo "Starting build: $hyprePACKAGE ($targetType)"
echo
(
    # Configuration options:
    unset configOpt

    cd "$HYPRE_SOURCE_DIR/src" || exit
    export GIT_DIR="$PWD/.git" # Mask seeing our own git-repo

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

    ./configure \
       --prefix=$HYPRE_ARCH_PATH \
       --disable-fortran \
       --enable-shared \
       $configOpt \
    && make -j $WM_NCOMPPROCS \
    && echo "Built: hypre" \
    && make install \
    && echo "Installed: hypre"
) || {
    echo "Error building: hypre"
    exit 1
}


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