Add simple project generation based on existing source files

Introduce the qt-cmake-create script. The script generates the simple
CMakeLists.txt based on the source files located in the current or
specified directory. The initial version can generate a CMake code for
the following file types:
  - .c .cc .cpp .cxx .h .hh .hxx .hpp - generates the qt_add_executable
    call with prerequisites.
  - .qml .js .mjs - generates the qt_add_qml_module call with
    prerequisites.
  - .ui - adds the found ui files to the existing executable. Requires
    C++ files be present in the directory too.
  - .qrc - generates the qt_add_resources call and adds the resources
    to the existing executable. Requires C++ files be present in the
    directory too.
  - .proto - generates qt_add_protobuf call with prerequisites.

The QtInitProject.cmake script contains the 'handle_type' function that
allows extending the script capabilities and establish simple relation
chains between the file types.

Note: The initial implementation doesn't deal with sub-directories, so
all files from sub-directories will be added to and handled in the
top-level CMakeLists.txt file. This can be extended by user request.

Task-number: QTBUG-104388
Change-Id: I5abd9e07da109e867ff95986572ed2bf02ef9d3d
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

1 files changed, 13 insertions, 0 deletions

diff --git a/cmake/README.md b/cmake/README.md
index 9800dae1ce..ac9d1012cf 100644
--- a/cmake/README.md
+++ b/cmake/README.md
@@ -313,3 +313,16 @@ $ cd some/empty/directory
 $ ~/Qt/6.0.0/bin/qt-cmake-standalone-test ~/source/of/qtbase/test/auto/corelib/io/qprocess
 $ cmake --build .
 ```
+
+## qt-cmake-create
+
+Generates a simple CMakeLists.txt based on source files in specified project directory.
+
+Example:
+
+```
+$ cd some/source/directory/
+$ qt-cmake-create
+$ qt-cmake -S . -B /build/directory
+$ cmake --build /build/directory
+```