CMake build: Add a qtc_glob_resources function

This is the CMake equivalent of "RESOURCES = $$files()" from qmake.

Use it in StudioWelcome for the Qml resources.

Change-Id: I2f495e2c4bad9f0bb488dee7e8966e31acb51b5a
Reviewed-by: Cristian Adam <cristian.adam@qt.io>

cmake/QtCreatorAPI.cmake

@@ -1124,3 +1124,16 @@ function(finalize_qtc_gtest test_name)
     finalize_test_setup(${test})
   endforeach()
 endfunction()
+
+# This is the CMake equivalent of "RESOURCES = $$files()" from qmake
+function(qtc_glob_resources)
+  cmake_parse_arguments(_arg "" "QRC_FILE;ROOT;GLOB" "" ${ARGN})
+
+  file(GLOB_RECURSE fileList RELATIVE "${_arg_ROOT}" "${_arg_ROOT}/${_arg_GLOB}")
+  set(qrcData "<RCC><qresource>\n")
+  foreach(file IN LISTS fileList)
+    string(APPEND qrcData "  <file alias=\"${file}\">${_arg_ROOT}/${file}</file>\n")
+  endforeach()
+  string(APPEND qrcData "</qresource></RCC>")
+  file(WRITE "${_arg_QRC_FILE}" "${qrcData}")
+endfunction()

src/plugins/studiowelcome/CMakeLists.txt

@@ -1,3 +1,11 @@
+set(qmlQrcFile "${CMAKE_CURRENT_BINARY_DIR}/StudioWelcome_qml.qrc")
+
+qtc_glob_resources(
+  QRC_FILE "${qmlQrcFile}"
+  ROOT "${CMAKE_CURRENT_SOURCE_DIR}"
+  GLOB "qml/*.*"
+)
+
 add_qtc_plugin(StudioWelcome
   DEPENDS Qt5::QuickWidgets
   PLUGIN_DEPENDS Core ProjectExplorer QtSupport
@@ -6,7 +14,7 @@ add_qtc_plugin(StudioWelcome
     studiowelcomeplugin.cpp studiowelcomeplugin.h
     studiowelcome_global.h
     studiowelcome.qrc
-    studiowelcome_qml.qrc
+    ${qmlQrcFile}
     "${PROJECT_SOURCE_DIR}/src/share/3rdparty/studiofonts/studiofonts.qrc"
   EXTRA_TRANSLATIONS
     qml

src/plugins/studiowelcome/studiowelcome_qml.qrc

@@ -1,6 +0,0 @@
-<!-- This file is the CMake equivalent of "RESOURCES = $$files(qml/*)" in studiowelcome.pro -->
-<RCC>
-    <qresource>
-        <file>qml/</file>
-    </qresource>
-</RCC>