configure

#!/bin/bash

# Copyright (C) 2004-2025 Robert Griebl
# SPDX-License-Identifier: GPL-3.0-only

# set -e -x

qmake_bin=""
qmake_bin_test=("$(which qmake-qt5)" "$(which qmake)" "$QTDIR/bin/qmake")
prefix="/usr/local"
debug_release=""

while [ $# -gt 0 ]; do
    case "$1" in
    --qmake|--qmake=*)
        qmake_bin_test=("${1:8}")
        if [ -z "${qmake_bin_test[0]}" ]; then
            shift
            qmake_bin_test=("$1")
        fi
        ;;
    --prefix|--prefix=*)
        prefix="${1:9}"
        if [ -z "$prefix" ]; then
            shift
            prefix="$1"
        fi
        ;;
    --debug)
        debug_release="-DCMAKE_BUILD_TYPE=Debug"
        ;;
    --release)
        debug_release="-DCMAKE_BUILD_TYPE=Release"
        ;;
    --backend-only)
        backend_only="-DBACKEND_ONLY=TRUE"
        ;;
    *)
        echo "Usage: configure [options]"
        echo "  --qmake=<qmake path>   (default: search in \$PATH)"
        echo "  --prefix=<prefix>      (default: /usr/local)"
        echo "  --release"
        echo "  --debug"
        echo "  --backend-only"
        exit 1
        ;;
    esac
    shift
done

for ((i=0; i<${#qmake_bin_test[@]}; i++)); do
   tst="${qmake_bin_test[$i]}"
   # echo "Testing: $tst"

   if [ -x "$tst" ]; then
       qmake_bin="$tst"
       break
   fi
done

if ! command -v cmake >/dev/null 2>&1; then
    echo "FAIL: Could not find a cmake binary"
    exit 2
fi
if ! command -v ninja >/dev/null 2>&1 ]; then
    echo "FAIL: Could not find a ninja binary"
    exit 2
fi

if [ ! -x "$qmake_bin" ]; then
    echo "FAIL: Could not find a suitable qmake binary"
    exit 2
fi

if [ $("$qmake_bin" -query QT_VERSION 2>/dev/null | cut -d. -f1) -ne 6 ]; then
    echo "FAIL: $qmake_bin is not a Qt 6 qmake"
    exit 3
fi

qtcmake_bin="$(dirname $qmake_bin)/qt-cmake"

if [ ! -x "$qtcmake_bin" ]; then
    echo "FAIL: Could not find a qt-cmake binary next to $qmake_bin"
    exit 2
fi

prefix="-DCMAKE_INSTALL_PREFIX=$prefix"
qmake="-DQT_QMAKE_EXECUTABLE=$qmake_bin"
ninja="-DCMAKE_GENERATOR=Ninja"

echo
echo "Running $qtcmake_bin with the following options:"
echo "  -S . -B . $prefix $ninja $debug_release $backend_only"
echo

"$qtcmake_bin" -S . -B . "$prefix" "$ninja" $debug_release $backend_only