使用cmake將文件複製到指定的目錄

Question

我想將somefile.bmp複製到我的「$ {PROJECT_BINARY_DIR}/bin/data」文件夾中，但它不起作用。但是，如果我將路徑更改爲「$ {PROJECT_BINARY_DIR}/bin」，它工作正常。我怎樣才能解決這個問題？

add_custom_command(TARGET Invaders POST_BUILD 
      COMMAND ${CMAKE_COMMAND} -E copy_if_different 
      "${PROJECT_SOURCE_DIR}/Game/data/somefile.bmp"    
      "${PROJECT_BINARY_DIR}/bin/data") 

Answer 1

該目錄不存在，我猜。您需要在複製之前創建它：

add_custom_command(TARGET Invaders POST_BUILD 
      COMMAND ${CMAKE_COMMAND} -E make_directory 
      "${PROJECT_SOURCE_DIR}/Game/data" 
      COMMAND ${CMAKE_COMMAND} -E copy_if_different 
      "${PROJECT_SOURCE_DIR}/Game/data/somefile.bmp"    
      "${PROJECT_BINARY_DIR}/bin/data")