Shiboken6Tools: Use shiboken6-generator from CMake easily

- Inspecting the `samplebinding` example, much of the code to
  effectively call `shiboken6-generator` can be moved into CMake
  function `shiboken_generator_create_binding` and shipped with
  `Shiboken6Tools` cmake package enabling users to
  easily use `shiboken6-generator` in their CMake projects.

  This also helps to get rid of the `pyside_config.py` script which
  is used to query certain required paths.

- This `Shiboken6Tools` CMake package is packaged with the
  `shiboken6-generator` wheel and can be used easily in CMake projects
  by using the `find_package(Shiboken6Tools)` command by adding the
  Python site-packages directory to the CMake module path.

- The `shiboken6-generator` path installed into the Python site-packages
  is different from the one used by the consecutive setup.py build/
  super project build. Hence, we create a new export set
  `Shiboken6ToolsWheelTargets` just for the wheel package. When
  copied into `package_for_wheels` this export set is used.

- Add a special condition to the `Shiboken6ToolsConfig.cmake` file
  to skip the dependency checking when building PySide which would
  otherwise lead to a circular dependency.

Task-number: PYSIDE-3138
Change-Id: I199b8d9fe743adee4e3b12e8a7e1ad01f3c277de
Reviewed-by: Alexandru Croitor <[email protected]>

1 files changed, 15 insertions, 2 deletions

diff --git a/build_scripts/platforms/unix.py b/build_scripts/platforms/unix.py
index 54aa265db..59c63fda3 100644
--- a/build_scripts/platforms/unix.py
+++ b/build_scripts/platforms/unix.py
@@ -257,10 +257,23 @@ def prepare_packages_posix(pyside_build, _vars, cross_build=False):
             pyside_build.prepare_standalone_clang(is_win=False)
 
     # Copy CMake config files
-    if config.is_internal_shiboken_module_build() or config.is_internal_pyside_build():
+    if config.is_internal_shiboken_generator_build():
+        # Copy Shiboken6Tools CMake package for generator
+        copy_cmake_config_dirs(
+            _vars["install_dir"], _vars["st_build_dir"],
+            _vars["st_package_name"], "Shiboken6Tools"
+        )
+    elif config.is_internal_shiboken_module_build():
+        # Copy Shiboken6 CMake package for module
+        copy_cmake_config_dirs(
+            _vars["install_dir"], _vars["st_build_dir"],
+            _vars["st_package_name"], "Shiboken6"
+        )
+    elif config.is_internal_pyside_build():
+        # Copy PySide6 CMake package
         copy_cmake_config_dirs(
             _vars["install_dir"], _vars["st_build_dir"],
-            _vars["st_package_name"], _vars["cmake_package_name"]
+            _vars["st_package_name"], "PySide6"
         )
 
     # Update rpath to $ORIGIN