reproduce bug qt6...metatypes.json: illegal value (windows nmake)

.github/workflows/json_bug_repro.yml

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+name: json_bug_repro
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: windows-2019
+
+    steps:
+    - uses: actions/checkout@v1
+
+    - name: nmake_build
+      shell: cmd
+      run: |
+        call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvars64.bat"
+        "C:\Program Files\Git\bin\bash.exe" ./json_bug_repro/ci/win_ci.sh

json_bug_repro/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.16)
+
+project(Reproducejsonbug VERSION 0.1 LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+find_package(Qt6 REQUIRED COMPONENTS Quick Bluetooth)
+
+qt_standard_project_setup(REQUIRES 6.5)
+
+
+qt_add_executable(appReproducejsonbug
+    main.cpp
+)
+
+qt_add_qml_module(appReproducejsonbug
+    URI Reproducejsonbug
+    VERSION 1.0
+        QML_FILES  qml/Main.qml
+)
+
+set_target_properties(appReproducejsonbug PROPERTIES
+    WIN32_EXECUTABLE TRUE
+)
+
+target_link_libraries(appReproducejsonbug
+    PRIVATE Qt6::Quick
+)

json_bug_repro/ci/qtapps/ci.sh

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+#!/bin/bash
+
+set -Eeuxo pipefail # https://vaneyckt.io/posts/safer_bash_scripts_with_set_euxo_pipefail/
+IFS=$'\n\t'
+
+THISDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+
+source ${THISDIR}/utils.bash # will compute UTILS_WE_ARE_RUNNING_IN_CI
+
+if [[ -n ${UTILS_WE_ARE_RUNNING_IN_CI-} ]];
+# The '-' hyphen above tests without angering the 'set -u' about unbound variables
+then
+  echo "C.I. environment was detected."
+
+  # Try various ways to print OS version info.
+  # This lets us keep a record of this in our CI logs,
+  # in case the CI docker images change.
+  uname -a       || true
+  lsb_release -a || true
+  gcc --version  || true  # oddly, gcc often prints great OS information
+  cat /etc/issue || true
+
+  # What environment variables did the C.I. system set? Print them:
+  env
+
+  if [[ "$OSTYPE" != "cygwin" && "$OSTYPE" != "msys" ]]; then
+    ${THISDIR}/../verify_authors.sh
+
+    ${THISDIR}/linux_apt_get_qt_deps.sh
+    ${THISDIR}/get_qt_libs.sh
+  elif [[ "$OSTYPE" == "cygwin" || "$OSTYPE" == "msys" ]]; then
+    ${THISDIR}/provision_win.sh
+  fi
+
+else
+  echo "Assuming we are NOT in cloud C.I. environment."
+fi
+
+
+THIS_FILENAME=$(basename "$0")
+echo 'We assume this was run with '\''set -e'\'' (look at upper lines of this script).'
+echo 'Assuming so, then getting here means:'
+echo "${THIS_FILENAME} SUCCESS"

json_bug_repro/ci/qtapps/provision_win.sh

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+#!/bin/bash
+
+set -Eeuxo pipefail # https://vaneyckt.io/posts/safer_bash_scripts_with_set_euxo_pipefail/
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+source "${DIR}/rootdirhelper.bash"
+
+DL_FOLDER=$CUR_GUICODE_ROOT/dl_third_party
+if [[ -n ${MYAPP_TEMPLATE_DL_FOLDER_OVERRIDE-} ]]; then
+  DL_FOLDER=${MYAPP_TEMPLATE_DL_FOLDER_OVERRIDE}
+fi
+
+pip3 install -r ${DIR}/requirements.txt  # https://github.com/miurahr/aqtinstall
+
+python3 -m aqt install-qt --outputdir $DL_FOLDER/Qt_desktop \
+  windows desktop 6.5.3 win64_msvc2019_64 \
+  --modules \
+  qtconnectivity \
+  qtimageformats \
+  qt5compat

json_bug_repro/ci/qtapps/requirements.txt

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+aqtinstall==3.1.12

json_bug_repro/ci/qtapps/rootdirhelper.bash

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+#!/bin/bash
+
+if [ "${BASH_SOURCE[0]}" -ef "$0" ]
+then
+    echo "Hey, you should source this script, not execute it!"
+    exit 1
+fi
+
+NESTED_GUI_ROOT="" # Populate this if you move the qt-qml-project beneath git root
+CUR_GIT_ROOT=$(git rev-parse --show-toplevel)
+
+export CUR_GUICODE_ROOT="${CUR_GIT_ROOT}/${NESTED_GUI_ROOT}/"
+
+DL_FOLDER=$CUR_GUICODE_ROOT/dl_third_party
+if [[ -n ${MYAPP_TEMPLATE_DL_FOLDER_OVERRIDE-} ]]; then
+  DL_FOLDER=${MYAPP_TEMPLATE_DL_FOLDER_OVERRIDE}
+fi

json_bug_repro/ci/qtapps/utils.bash

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+#!/bin/bash
+
+if [ "${BASH_SOURCE[0]}" -ef "$0" ]
+then
+    echo "Hey, you should source this script, not execute it!"
+    exit 1
+fi
+
+if [[ -n ${TERM-} && ${TERM-} != "dumb" && ${TERM-} != "emacs" ]]; then
+  # https://stackoverflow.com/a/20983251/10278
+  u_red=`tput setaf 1`
+  u_green=`tput setaf 2`
+  u_resetcolor=`tput sgr0` # keep reset LAST. The above do change the output.
+else
+  u_red=''
+  u_green=''
+  u_resetcolor=''
+fi
+
+# https://web.archive.org/web/20191121235402/https://confluence.atlassian.com/bitbucket/variables-in-pipelines-794502608.html
+if [[ -n ${GITHUB_ACTIONS-} || -n ${BITBUCKET_REPO_OWNER-} || -n ${BITBUCKET_REPO_FULL_NAME-} ]];
+# The '-' hyphens above test without angering the 'set -u' about unbound variables
+then
+  export UTILS_WE_ARE_RUNNING_IN_CI=1
+  echo "Assuming C.I. environment."
+  echo "Found at least one of GITHUB_ACTIONS, BITBUCKET_REPO_OWNER, BITBUCKET_REPO_FULL_NAME in env."
+fi

json_bug_repro/ci/win_ci.sh

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+#!/bin/bash
+
+set -Eeuo pipefail # https://vaneyckt.io/posts/safer_bash_scripts_with_set_euxo_pipefail/
+IFS=$'\n\t'
+
+THISDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+CUR_GIT_ROOT=$(git rev-parse --show-toplevel)
+
+if [[ "$OSTYPE" != "cygwin" && "$OSTYPE" != "msys" ]]; then
+  echo "This script is for use on Microsoft Windows"
+  exit 1
+fi
+
+if [[ -z ${VCToolsInstallDir-} ]]; then
+  echo "WHOOPS. vcvars64 (or vcvarsall) was not called yet."
+  echo "You MUST start a VISUAL STUDIO command prompt. (Then start git-bash from within it.)"
+  echo "Read the above and try again."
+  exit 1
+fi
+
+
+"${THISDIR}"/qtapps/ci.sh
+
+source "${THISDIR}"/qtapps/rootdirhelper.bash
+
+MSVCPATHFORBUILDING=$(cygpath -u "${VCToolsInstallDir}/bin/HOSTx64/x64")
+export PATH="${MSVCPATHFORBUILDING}:$PATH" # make sure MSVC link.exe is found (not bash/unix 'link' tool)
+
+WINDLPATH=$(cygpath -u $DL_FOLDER)
+
+# Variables used by CMakeLists
+export Qt6_DIR="${WINDLPATH}/Qt_desktop/6.5.3/msvc2019_64/lib/cmake/Qt6/"
+
+# Put qmake on the PATH:
+export PATH="${WINDLPATH}/Qt_desktop/6.5.3/msvc2019_64/bin:$PATH"
+
+
+
+mkdir -p cbuild
+pushd cbuild
+
+  cmake "-G" "NMake Makefiles" -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON $THISDIR/..
+
+  # See: https://forum.qt.io/topic/146961/building-qt6-5-with-nmake-error
+  # Workaround for bug in Qt6CoreMacros.cmake:
+  #buggy_genfile=meta_types/qt6appreproducejsonbug_debug_metatypes.json
+  #if [ ! -s "$buggy_genfile" ]; then
+  #  echo "{}" >> "$buggy_genfile"
+  #fi
+
+  nmake
+
+
+popd # pushd cbuild
+
+
+
+THIS_FILENAME=$(basename "$0")
+echo 'We assume this was run with '\''set -e'\'' (look at upper lines of this script).'
+echo 'Assuming so, then getting here means:'
+echo "${THIS_FILENAME} SUCCESS"

json_bug_repro/main.cpp

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+#include <QGuiApplication>
+#include <QQmlApplicationEngine>
+#include <QQuickView>
+#include <QQmlContext>
+#include <QQmlEngine>
+
+#include <QObject>
+
+
+int main(int argc, char *argv[])
+{
+    QGuiApplication app(argc, argv);
+
+    QQmlApplicationEngine engine;
+    engine.loadFromModule("Reproducejsonbug", "Main");
+
+    app.exec();
+}

json_bug_repro/qml/Main.qml

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+import QtQuick
+
+Window {
+    width: 1200
+    height: 600
+    visible: true
+}