allwpilib/cmake/modules/GenResources.cmake

set(scripts_dir "${CMAKE_CURRENT_LIST_DIR}/../scripts")
macro(generate_resources inputDir outputDir prefix namespace outputFiles)
  file(GLOB inputFiles ${inputDir}/*)
  set(${outputFiles})
  foreach(input ${inputFiles})
    get_filename_component(inputBase ${input} NAME)
    if("${inputBase}" MATCHES "^\\.")
      continue()
    endif()
    set(output "${outputDir}/${inputBase}.cpp")
    list(APPEND ${outputFiles} "${output}")

    add_custom_command(
      OUTPUT ${output}
      COMMAND ${CMAKE_COMMAND}
        "-Dinput=${input}"
        "-Doutput=${output}"
        "-Dprefix=${prefix}"
        "-Dnamespace=${namespace}"
        -P "${scripts_dir}/GenResource.cmake"
      MAIN_DEPENDENCY ${input}
      DEPENDS ${scripts_dir}/GenResource.cmake
      VERBATIM
    )
  endforeach()
endmacro()