License update (GPLv2 -> GPLv3)

- updated the main license from GPLv2 to GPLv3. This was necessary
  because newer Qt modules (like Quick3D) are not available under
  the GPLv2 anymore.
- replaced the verbose per-file license headers with SPDX headers.
- license headers were missing in most QML files and scripts.
- simplified the license section of the "About" dialog.

.github/workflows/build_cmake.yml

@@ -1,3 +1,6 @@
+# Copyright (C) 2004-2023 Robert Griebl
+# SPDX-License-Identifier: GPL-3.0-only
+
 name: CMake Build Matrix
 
 env:

3rdparty/CMakeLists.txt

@@ -1,3 +1,5 @@
+# Copyright (C) 2004-2023 Robert Griebl
+# SPDX-License-Identifier: GPL-3.0-only
 
 target_sources(${PROJECT_NAME} PUBLIC
     lzma/bs_lzma.h

3rdparty/lzma/bs_lzma.cpp

@@ -1,16 +1,6 @@
-/* Copyright (C) 2004-2022 Robert Griebl. All rights reserved.
-**
-** This file is part of BrickStore.
-**
-** This file may be distributed and/or modified under the terms of the GNU
-** General Public License version 2 as published by the Free Software Foundation
-** and appearing in the file LICENSE.GPL included in the packaging of this file.
-**
-** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
-** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-**
-** See http://fsf.org/licensing/licenses/gpl.html for GPL licensing information.
-*/
+// Copyright (C) 2004-2023 Robert Griebl
+// SPDX-License-Identifier: GPL-3.0-only
+
 #include <QByteArray>
 #include <QFile>
 #include <QSaveFile>

3rdparty/lzma/bs_lzma.h

@@ -1,16 +1,6 @@
-/* Copyright (C) 2004-2022 Robert Griebl. All rights reserved.
-**
-** This file is part of BrickStore.
-**
-** This file may be distributed and/or modified under the terms of the GNU
-** General Public License version 2 as published by the Free Software Foundation
-** and appearing in the file LICENSE.GPL included in the packaging of this file.
-**
-** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
-** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-**
-** See http://fsf.org/licensing/licenses/gpl.html for GPL licensing information.
-*/
+// Copyright (C) 2004-2023 Robert Griebl
+// SPDX-License-Identifier: GPL-3.0-only
+
 #pragma once
 
 #include <functional>

3rdparty/minizip/minizip.cpp

@@ -1,16 +1,6 @@
-/* Copyright (C) 2004-2022 Robert Griebl. All rights reserved.
-**
-** This file is part of BrickStore.
-**
-** This file may be distributed and/or modified under the terms of the GNU
-** General Public License version 2 as published by the Free Software Foundation
-** and appearing in the file LICENSE.GPL included in the packaging of this file.
-**
-** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
-** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-**
-** See http://fsf.org/licensing/licenses/gpl.html for GPL licensing information.
-*/
+// Copyright (C) 2004-2023 Robert Griebl
+// SPDX-License-Identifier: GPL-3.0-only
+
 #include <QFile>
 
 #if Q_BYTE_ORDER == Q_BIG_ENDIAN

3rdparty/minizip/minizip.h

@@ -1,16 +1,6 @@
-/* Copyright (C) 2004-2022 Robert Griebl. All rights reserved.
-**
-** This file is part of BrickStore.
-**
-** This file may be distributed and/or modified under the terms of the GNU
-** General Public License version 2 as published by the Free Software Foundation
-** and appearing in the file LICENSE.GPL included in the packaging of this file.
-**
-** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
-** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-**
-** See http://fsf.org/licensing/licenses/gpl.html for GPL licensing information.
-*/
+// Copyright (C) 2004-2023 Robert Griebl
+// SPDX-License-Identifier: GPL-3.0-only
+
 #pragma once
 
 #include <QCoreApplication>

CMakeLists.txt

@@ -1,3 +1,5 @@
+# Copyright (C) 2004-2023 Robert Griebl
+# SPDX-License-Identifier: GPL-3.0-only
 
 cmake_minimum_required(VERSION 3.19.0)
 
@@ -31,7 +33,7 @@ set(BRICKLINK_AFFILIATE_API_KEY  "" CACHE STRING "BrickLink's Affiliate API key"
 
 set(NAME           "BrickStore")
 set(DESCRIPTION    "${NAME} - an offline BrickLink inventory management tool.")
-set(COPYRIGHT      "2004-2022 Robert Griebl")
+set(COPYRIGHT      "2004-2023 Robert Griebl")
 set(BRICKSTORE_URL "brickforge.de/brickstore")
 set(GITHUB_URL     "github.com/rgriebl/brickstore")
 set(BUILD_NUMBER   "$ENV{BUILD_NUMBER}")