#!/bin/sh
#------------------------------------------------------------------------------
# =========                 |
# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
#  \\    /   O peration     |
#   \\  /    A nd           | www.openfoam.com
#    \\/     M anipulation  |
#------------------------------------------------------------------------------
#     Copyright (C) 2018-2020 OpenCFD Ltd.
#------------------------------------------------------------------------------
# License
#     This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
#
# Script
#     makeHYPRE
#
# Description
#     Build script for HYPRE
#
# ----------------------------------------------
# NO USER-CONFIGURABLE SETTINGS WITHIN THIS FILE
#------------------------------------------------------------------------------

# 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
}
. 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] [-- configure-options]
options:
  -force        Force compilation, even if include/library already exists
  -gcc          Force use of gcc/g++
  -help

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

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

unset optForce

# Parse options
while [ "$#" -gt 0 ]
do
    case "$1" in
    '') ;;      # Ignore empty
    --) break;; # Extra configure options (leave on $@ for later detection)
    -h | -help) usage   ;;
    -gcc)       useGcc  ;;
    -force)     optForce=true ;;

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

    hypre-[0-9]* | hypre-git)
        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 HYPRE
    exit 1
}


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

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

    # Additional configure options
    if [ "$1" = "--" ]
    then
        shift
        configOpt="$configOpt $@"
    fi

    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
}


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