#!/bin/sh
#------------------------------------------------------------------------------
# =========                 |
# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
#  \\    /   O peration     |
#   \\  /    A nd           | www.openfoam.com
#    \\/     M anipulation  |
#------------------------------------------------------------------------------
#     Copyright (C) 2018-2021 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
#------------------------------------------------------------------------------
if :    # Run from third-party directory
then
    cd "${0%/*}" || exit
    wmakeCheckPwd "$WM_THIRD_PARTY_DIR" 2>/dev/null || {
        echo "Error (${0##*/}) : not located in \$WM_THIRD_PARTY_DIR"
        echo "    Check your OpenFOAM environment and installation"
        exit 1
    }
fi
. "${WM_THIRD_PARTY_DIR:?}"/etc/tools/ThirdPartyFunctions
#------------------------------------------------------------------------------
# Obtain version from etc/config.sh file:
_foamConfig hypre

PACKAGE="${hypre_version:-none}"
targetType=libso

if nonStandardPlatforms  # Possibly unreliable inherited values
then
    unset HYPRE_ARCH_PATH
fi

#------------------------------------------------------------------------------
printVersions() { listPackageVersions hypre; exit 0; }
printHelp() {
    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++
  -list         List available unpacked source versions
  -help         Display usage help

* Build HYPRE with
      ${PACKAGE:-[unspecified]}

USAGE
    showDownloadHint hypre
    exit 0  # Clean exit
}
#------------------------------------------------------------------------------
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*) printHelp;;
    -list)      printVersions;;
    -gcc)       useGcc  ;;
    -force)     optForce=true ;;

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

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

if [ -z "$PACKAGE" ]
then
    die "The HYPRE package/version not specified"
elif _foamIsNone "$PACKAGE" || _foamIsSystem "$PACKAGE"
then
    echo "Using none/system (skip ThirdParty build of HYPRE)"
    exit 0
fi

#------------------------------------------------------------------------------
#
# Build HYPRE
#
#   HYPRE_ARCH_PATH : installation directory (as per config file)
#
#   *PACKAGE : name-version of the package
#   *SOURCE  : location of original sources
#   *PREFIX  : installation directory

PKG_SOURCE="$(findSourceDir "$PACKAGE")"
PACKAGE="$(basename "$PACKAGE")"
PKG_PREFIX="$installBASE$WM_SIZE_OPTIONS/$PACKAGE"
export GIT_DIR="$PKG_SOURCE/.git"

# Override as per config file (if any)
[ -n "$HYPRE_ARCH_PATH" ] && PKG_PREFIX="$HYPRE_ARCH_PATH"

[ -d "$PKG_SOURCE" ] || {
    echo "Missing sources: '$PACKAGE'"
    showDownloadHint hypre
    exit 1
}


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

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

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

    cd "$PKG_SOURCE/src" || exit

    rm -rf "$PKG_PREFIX"
    make distclean 2>/dev/null || true

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

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