#!/bin/sh
#------------------------------------------------------------------------------
# =========                 |
# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
#  \\    /   O peration     |
#   \\  /    A nd           | www.openfoam.com
#    \\/     M anipulation  |
#------------------------------------------------------------------------------
#     Copyright (C) 2011 OpenFOAM Foundation
#     Copyright (C) 2016-2020 OpenCFD Ltd.
#------------------------------------------------------------------------------
# License
#     This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
#
# Script
#     makeQt
#
# Description
#     Build script for QT (the qt-everywhere-opensource-src package)
#
# ----------------------------------------------
# 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 (${0##*/}) : not located in \$WM_THIRD_PARTY_DIR"
    echo "    Check your OpenFOAM environment and installation"
    exit 1
}
. etc/tools/ThirdPartyFunctions
. etc/tools/QtFunctions
#------------------------------------------------------------------------------
usage() {
    exec 1>&2
    while [ "$#" -ge 1 ]; do echo "$1"; shift; done
    cat<<USAGE

usage: ${0##*/} [OPTION] [qt-VERSION] [-- configure-options]
options:
  -force        Force compilation, even if it already exists
  -gcc          Force use of gcc/g++
  -help

* build $qtTYPE, version ${qtVERSION:-undefined}

USAGE
    showDownloadHint QT
    exit 1
}
#------------------------------------------------------------------------------
exportCompiler true     # Compiler info + flags 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 ;;

    -qt-[0-9]* | [0-9]* | 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_SOURCE_DIR=$sourceBASE/$qtPACKAGE
QT_ARCH_PATH=$installBASE/qt-$qtVERSION

echo
echo ========================================
echo "Build Qt $qtPACKAGE"
echo

if [ -z "$optForce" ] \
&& [ -d "$QT_ARCH_PATH" ] \
&& [ -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

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

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

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

        # 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

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