Meta: Make embed_as_string_view.py usable by CMake builds :^)

Meta/CMake/code_generators.cmake

@@ -2,6 +2,26 @@
 # Functions for generating sources using host tools
 #
 
+function(embed_as_string_view name source_file output source_variable_name)
+    cmake_parse_arguments(PARSE_ARGV 4 EMBED_STRING_VIEW "" "NAMESPACE" "")
+    set(namespace_arg "")
+    if (EMBED_STRING_VIEW_NAMESPACE)
+        set(namespace_arg "-s ${EMBED_STRING_VIEW_NAMESPACE}")
+    endif()
+    add_custom_command(
+        OUTPUT "${output}"
+        COMMAND "python3" "${SerenityOS_SOURCE_DIR}/Meta/embed_as_string_view.py" "${source_file}" -o "${output}.tmp" -n "${source_variable_name}" ${namespace_arg}
+        COMMAND "${CMAKE_COMMAND}" -E copy_if_different "${output}.tmp" "${output}"
+        COMMAND "${CMAKE_COMMAND}" -E remove "${output}.tmp"
+        VERBATIM
+        DEPENDS "${SerenityOS_SOURCE_DIR}/Meta/embed_as_string_view.py"
+        MAIN_DEPENDENCY "${source_file}"
+    )
+
+    add_custom_target("generate_${name}" DEPENDS "${output}")
+    add_dependencies(all_generated "generate_${name}")
+endfunction()
+
 function(stringify_gml source output string_name)
     set(source ${CMAKE_CURRENT_SOURCE_DIR}/${source})
     add_custom_command(

Meta/gn/build/embed_as_string_view.gni

@@ -33,7 +33,7 @@ template("embed_as_string_view") {
          "must set 'variable_name' in $target_name")
 
   action(target_name) {
-    script = "//Meta/gn/build/embed_as_string_view.py"
+    script = "//Meta/embed_as_string_view.py"
 
     sources = [ invoker.input ]
     outputs = [ invoker.output ]