CMake: Report which qt parts will be built by default

Like libs, tools, examples, tests. Built by default means
they are part of the default make / ninja target.

Change-Id: I304e5724fc5dbd39626e9d589a6e1e92a4dd7882
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

cmake/QtBuildInformation.cmake

@@ -106,6 +106,8 @@ function(qt_configure_eval_commands)
             qt_configure_process_add_summary_build_type_and_config(${command_args})
         elseif(command_name STREQUAL ADD_BUILD_MODE)
             qt_configure_process_add_summary_build_mode(${command_args})
+        elseif(command_name STREQUAL ADD_BUILD_PARTS)
+            qt_configure_process_add_summary_build_parts(${command_args})
         endif()
 
         math(EXPR command_index "${command_index}+1")
@@ -285,6 +287,29 @@ function(qt_configure_process_add_summary_build_mode label)
     qt_configure_add_report_padded("${label}" "${message}")
 endfunction()
 
+function(qt_configure_add_summary_build_parts)
+    qt_configure_record_command(ADD_BUILD_PARTS ${ARGV})
+endfunction()
+
+function(qt_configure_process_add_summary_build_parts label)
+    set(parts "libs")
+
+    if(BUILD_EXAMPLES AND NOT QT_NO_MAKE_EXAMPLES)
+        list(APPEND parts "examples")
+    endif()
+
+    if(BUILD_TESTING AND NOT QT_NO_MAKE_TESTS)
+        list(APPEND parts "tests")
+    endif()
+
+    if(NOT CMAKE_CROSSCOMPILING)
+        list(APPEND parts "tools")
+    endif()
+
+    string(REPLACE ";" " " message "${parts}")
+    qt_configure_add_report_padded("${label}" "${message}")
+endfunction()
+
 function(qt_configure_add_summary_section)
     qt_configure_record_command(ADD_SUMMARY_SECTION ${ARGV})
 endfunction()

configure.cmake

@@ -860,6 +860,7 @@ qt_configure_add_summary_entry(
     MESSAGE "Code Coverage Instrumentation"
     CONDITION QT_FEATURE_coverage
 )
+qt_configure_add_summary_build_parts("Build parts")
 qt_configure_add_summary_entry(
     ARGS "appstore-compliant"
     CONDITION APPLE OR ANDROID OR WINRT OR WIN32

util/cmake/configurejson2cmake.py

@@ -1152,6 +1152,9 @@ def processSummaryHelper(ctx, entries, cm_fh):
         elif "type" in entry and entry["type"] == "buildMode":
             message = entry["message"]
             cm_fh.write(f"qt_configure_add_summary_build_mode({message})\n")
+        elif "type" in entry and entry["type"] == "buildParts":
+            message = entry["message"]
+            cm_fh.write(f'qt_configure_add_summary_build_parts("{message}")\n')
         elif "section" in entry:
             section = entry["section"]
             cm_fh.write(f'qt_configure_add_summary_section(NAME "{section}")\n')