Use file(GLOB) for copy_if_different

Author: wravery

src/introspection/CMakeLists.txt

@@ -9,9 +9,10 @@ include(${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/cppgraphqlgen-functions.cmake)
 if(GRAPHQL_UPDATE_SAMPLES)
   update_graphql_schema_files(introspection schema.introspection.graphql Introspection introspection --introspection)
 
+  file(GLOB PRIVATE_HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/*.h)
   add_custom_command(
     OUTPUT copied_introspection_schema_headers
-    COMMAND ${CMAKE_COMMAND} -E copy_if_different ${CMAKE_CURRENT_SOURCE_DIR}/*.h ${CMAKE_CURRENT_SOURCE_DIR}/../../include/graphqlservice/introspection/
+    COMMAND ${CMAKE_COMMAND} -E copy_if_different ${PRIVATE_HEADERS} ${CMAKE_CURRENT_SOURCE_DIR}/../../include/graphqlservice/introspection/
     COMMAND ${CMAKE_COMMAND} -E touch copied_introspection_schema_headers
     DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/introspection_schema_files
     COMMENT "Updating IntrospectionSchema headers")
@@ -20,7 +21,7 @@ if(GRAPHQL_UPDATE_SAMPLES)
     DEPENDS copied_introspection_schema_headers)
 endif()
 
-file(GLOB SCHEMA_FILES ${CMAKE_CURRENT_SOURCE_DIR}/../../include/graphqlservice/introspection/*.h)
-install(FILES ${SCHEMA_FILES}
+file(GLOB PUBLIC_HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/../../include/graphqlservice/introspection/*.h)
+install(FILES ${PUBLIC_HEADERS}
   CONFIGURATIONS ${GRAPHQL_INSTALL_CONFIGURATIONS}
   DESTINATION ${GRAPHQL_INSTALL_INCLUDE_DIR}/graphqlservice/introspection)