Autogen: set SKIP_LINTING ON for generated files

Fixes: #19772

Source/cmQtAutoGenInitializer.cxx

@@ -1834,6 +1834,7 @@ cmSourceFile* cmQtAutoGenInitializer::RegisterGeneratedSource(
   cmSourceFile* gFile = this->Makefile->GetOrCreateSource(filename, true);
   gFile->MarkAsGenerated();
   gFile->SetProperty("SKIP_AUTOGEN", "1");
+  gFile->SetProperty("SKIP_LINTING", "ON");
   return gFile;
 }
 

Tests/RunCMake/Autogen/AutogenSkipLinting-build-stderr.txt

@@ -0,0 +1 @@
+.*

Tests/RunCMake/Autogen/AutogenSkipLinting.cmake

@@ -0,0 +1,16 @@
+enable_language(CXX)
+
+find_package(Qt${with_qt_version} REQUIRED COMPONENTS Core Widgets Gui)
+
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_CXX_INCLUDE_WHAT_YOU_USE "$<1:${PSEUDO_IWYU}>" -some -args)
+set(CMAKE_CXX_CLANG_TIDY "$<1:${PSEUDO_TIDY}>" -bad)
+set(CMAKE_CXX_CPPLINT "$<1:${PSEUDO_CPPLINT}>" --error)
+set(CMAKE_CXX_CPPCHECK "$<1:${PSEUDO_CPPCHECK}>" -error)
+
+add_executable(SkipLinting SkipLinting.cxx SkipLinting.h)
+set_source_files_properties(SkipLinting.cxx PROPERTIES SKIP_LINTING TRUE)
+
+target_link_libraries(SkipLinting Qt${with_qt_version}::Core
+                                   Qt${with_qt_version}::Widgets
+                                   Qt${with_qt_version}::Gui)

Tests/RunCMake/Autogen/RunCMakeTest.cmake

@@ -87,5 +87,20 @@ if (DEFINED with_qt_version)
       message(STATUS "RunCMake_TEST_EXPECT_stdout: ${RunCMake_TEST_EXPECT_stdout}")
       run_cmake_command(AutogenUseSystemIncludeOff ${CMAKE_COMMAND} --build . --config Debug --verbose)
     endblock()
+
+    if(RunCMake_GENERATOR MATCHES "Make|Ninja")
+      block()
+        set(RunCMake_TEST_BINARY_DIR  ${RunCMake_BINARY_DIR}/AutogenSkipLinting-build)
+        list(APPEND RunCMake_TEST_OPTIONS
+          "-DPSEUDO_CPPCHECK=${PSEUDO_CPPCHECK}"
+          "-DPSEUDO_CPPLINT=${PSEUDO_CPPLINT}"
+          "-DPSEUDO_IWYU=${PSEUDO_IWYU}"
+          "-DPSEUDO_TIDY=${PSEUDO_TIDY}")
+
+        run_cmake(AutogenSkipLinting)
+        set(RunCMake_TEST_NO_CLEAN 1)
+        run_cmake_command(AutogenSkipLinting-build ${CMAKE_COMMAND} --build . --config Debug --verbose)
+      endblock()
+    endif()
   endif()
 endif ()

Tests/RunCMake/Autogen/SkipLinting.cxx

@@ -0,0 +1,6 @@
+#include "SkipLinting.h"
+
+int main()
+{
+  return 0;
+}

Tests/RunCMake/Autogen/SkipLinting.h

@@ -0,0 +1,11 @@
+#ifndef SKIP_LINTING_H
+#define SKIP_LINTING_H
+
+#include <QObject>
+
+class SkipMe : public QObject
+{
+  Q_OBJECT
+};
+
+#endif

Tests/RunCMake/CMakeLists.txt

@@ -266,6 +266,10 @@ if(CMake_TEST_Qt6 AND Qt6Widgets_FOUND)
     -Dwith_qt_version=6
     "-DQt6_DIR:PATH=${Qt6_DIR}"
     "-DCMAKE_PREFIX_PATH:STRING=${base_dir}"
+    -DPSEUDO_TIDY=$<TARGET_FILE:pseudo_tidy>
+    -DPSEUDO_IWYU=$<TARGET_FILE:pseudo_iwyu>
+    -DPSEUDO_CPPLINT=$<TARGET_FILE:pseudo_cpplint>
+    -DPSEUDO_CPPCHECK=$<TARGET_FILE:pseudo_cppcheck>
   )
   set(want_NoQt_test FALSE)
 endif ()