add_custom_command用於將* .y復制到* .txt文件

Question

我試圖使用add_custom_command CMake命令將生成的*.y輸出（平面亮度值，無標題信息）復制到文本文件。 如何在add_custom_command添加copy命令？

我想將生成的*.y輸出重定向到文本文件。 但是>重定向沒有add_custom_command不能直接在CMake中運行，所以我嘗試使用add_custom_command 。 在這里，我想使用copy而不是> ，但是在兩種情況下，我仍然無法將*.y輸出重定向或復制到*.txt文件。

macro(COMPARE file function type type_out)
  get_filename_component(main_base_name ${file} NAME_WE)
  set(main_base_name_mangled ${main_base_name}_${function}_${type_out})

  # file generated by simulation
  set(output_file ${function}_${type_out}_0_opt.y)
  # reference file generated by generator
  set(reference_file ${function}_${type_out}_0_ref.y)

  set(output_file_txt ${function}_${type_out}_0_opt.txt)
  set(reference_file_txt ${function}_${type_out}_0_ref.txt)

  add_custom_target(compare_${main_base_name_mangled}
    COMMAND cmp ${reference_file} ${output_file}
   COMMENT "Comparing ${reference_file} ${output_file}")

  add_dependencies(compare_${main_base_name_mangled}
    simulate_${main_base_name_mangled})

  add_test(NAME Compare_${main_base_name_mangled}
    COMMAND ${CMAKE_COMMAND} --build ${CMAKE_BINARY_DIR}
                             --target compare_${main_base_name_mangled})

  # add dependency to compile first
  set_tests_properties(Compare_${main_base_name_mangled}
    PROPERTIES REQUIRED_FILES ${reference_file})
  set_tests_properties(Compare_${main_base_name_mangled}
    PROPERTIES REQUIRED_FILES  ${output_file})
  # test Compare_X depends on Simulate_X
  set_tests_properties(Compare_${main_base_name_mangled}
    PROPERTIES DEPENDS Simulate_${base_name_mangled})

  #Here I have added my code to redirect my *.y output to *.txt file  
  add_custom_command(
    OUTPUT ${output_file} 
    ${CMAKE_COMMAND} -E copy ${output_file} ${output_file_txt}
    MAIN_DEPENDENCY ${output_file} 
    COMMENT "Redirecting ${output_file} to ${output_file_txt}")

  add_custom_command(
    OUTPUT ${reference_file}
    ${CMAKE_COMMAND} -E copy ${reference_file} ${reference_file_txt}
    MAIN_DEPENDENCY ${reference_file}
    COMMENT "Redirecting ${reference_file} to ${reference_file_txt}")
endmacro()

運行此代碼后，我想生成兩個文本文件，上述CMake更改仍然無法實現。

Answer 1

您的add_custom_command調用中的OUTPUT指令應指定由定制命令生成的文件（即輸出文件），而不是輸入文件。 這是代碼中的固定代碼段：

  # Here I have added my code to redirect my *.y output to *.txt file  
  add_custom_command(
    OUTPUT ${output_file_txt} 
    ${CMAKE_COMMAND} -E copy ${output_file} ${output_file_txt}
    MAIN_DEPENDENCY ${output_file} 
    COMMENT "Redirecting ${output_file} to ${output_file_txt}")

  add_custom_command(
    OUTPUT ${reference_file_txt}
    ${CMAKE_COMMAND} -E copy ${reference_file} ${reference_file_txt}
    MAIN_DEPENDENCY ${reference_file}
    COMMENT "Redirecting ${reference_file} to ${reference_file_txt}")