#!/bin/sh
#------------------------------------------------------------------------------
# =========                 |
# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
#  \\    /   O peration     |
#   \\  /    A nd           | Copyright (C) 2011 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
#     makeQt
#
# Description
#     Build script for QT (the qt-everywhere-opensource-src package)
#
#------------------------------------------------------------------------------
qtVERSION=4.8.7
qtTYPE=qt-everywhere-opensource-src

#------------------------------------------------------------------------------
# Run from third-party directory only
wmakeCheckPwd "$WM_THIRD_PARTY_DIR" || {
    echo "Error: Current directory is not \$WM_THIRD_PARTY_DIR"
    echo "    The environment variables are inconsistent with the installation."
    echo "    Check the OpenFOAM entries in your dot-files and source them."
    exit 1
}
. etc/tools/ThirdPartyFunctions
. etc/tools/QtFunctions
#------------------------------------------------------------------------------
usage() {
    exec 1>&2
    while [ "$#" -ge 1 ]; do echo "$1"; shift; done
    cat<<USAGE

usage: ${0##*/} [OPTION] [VERSION]
options:
  -gcc              Force gcc/g++ instead of the values from \$WM_CC, \$WM_CXX
  -help

* build $qtTYPE, version $qtVERSION

USAGE
    exit 1
}
#------------------------------------------------------------------------------
# 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"

# Parse options
while [ "$#" -gt 0 ]
do
    case "$1" in
    -h | -help)
        usage
        ;;
    -gcc)
        export CC=gcc    # use gcc/g++
        export CXX=g++
        ;;
    -qt-[1-9]* | [1-9]* | qt-*)
        # -qt-VERSION, VERSION, qt-VERSION, qt-everywhere-opensource-src-VERSION
        qtVERSION="${1%%/}";
        qtVERSION="${qtVERSION##*-}"
        ;;
    *)
        die "unknown option/argument: '$1'"
        ;;
    esac
    shift
done
qtPACKAGE=$qtTYPE-$qtVERSION

# nothing to build
if _foamIsNone "$qtPACKAGE"
then
    echo "Using qt-none (skip ThirdParty build of QT)"
    exit 0
elif _foamIsSystem "$qtPACKAGE"
then
    echo "Using qt-system"
    exit 0
fi

#------------------------------------------------------------------------------
#
# Build QT

QT_ARCH_PATH=$installBASE/qt-$qtVERSION
QT_SOURCE_DIR=$WM_THIRD_PARTY_DIR/$qtPACKAGE

echo
echo ========================================
echo "Build Qt $qtPACKAGE"
echo
if [ -d "$QT_ARCH_PATH" -a -r "$QT_ARCH_PATH/bin/qmake" ]
then
    echo "Already built: Qt-$qtVERSION"
else
    echo "Starting build: Qt-$qtVERSION"
    (
        # Configuration options:
        unset configOpt
        configOpt="$configOpt -nomake examples"

        case "$qtVERSION" in
        4*) # QT-4
            # Without demos.
            configOpt="$configOpt -nomake demos"

            # Without old qt3 transition code
            configOpt="$configOpt -no-qt3support"

            # Without WebKit - uses std:tr1 and does not compile with c++11
            # Fortunately WebKit is now optional for ParaView
            configOpt="$configOpt -no-webkit"
            ;;

        *)  # QT-5
            # Avoid too many X11 system dependencies.
            configOpt="$configOpt -qt-xcb"
            ;;
        esac

        # end of configuration options
        # ----------------------------
        buildDIR=$buildBASE/$qtPACKAGE

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

        # Remove any existing build folder and recreate
        rm -rf $QT_ARCH_DIR
        rm -rf $buildDIR 2>/dev/null
        mkdir -p $buildDIR

        # Remove any remnants from a previous shadow build
        rm -f "$QT_SOURCE_DIR/.qmake.cache" 2>/dev/null
        rm -f "$QT_SOURCE_DIR/src/corelib/global/qconfig.h" 2>/dev/null
        rm -f "$QT_SOURCE_DIR/src/corelib/global/qconfig.cpp" 2>/dev/null

        cd $buildDIR || exit 1

        # Compile as opensource, accepting LGPL conditions (yes)
        echo yes | $QT_SOURCE_DIR/configure \
            -prefix $QT_ARCH_PATH \
            -opensource \
            $configOpt \
        && time make -j $WM_NCOMPPROCS \
        && make install \
        && echo "Built: Qt-$qtVERSION" \
        && finalizeQt
    ) || {
        echo "Error building: Qt-$qtVERSION"
        exit 1
    }
fi

# ----------------------------------------------------------------- end-of-file