CMake：如何只将特定的文件扩展名从一个目录复制到另一个目录 [英] CMake: How to copy only specific file extensions from one directory into another

问题描述

我使用以下自定义命令将 config 目录中的所有文件复制到 build 目录中。问题是我不想复制 .svn 目录。我正在寻找一种方法，要么排除 .svn 目录或复制具有特定扩展名的文件。例如我只想要复制 xml 或 conf 扩展名的文件。我应该怎么办？

I am using the following custom command to copy all the files within the config directory into the build directory. The problem is that I don't want the .svn directory to be copied as well. I am looking for a way to either exclude the .svn directory or to copy files with specific extension. e.g. I want only files with xml or conf extensions to be copied. What should I do?

add_custom_command(TARGET MyTarget PRE_BUILD
                   COMMAND ${CMAKE_COMMAND} -E copy_directory
                       ${CMAKE_SOURCE_DIR}/config $<TARGET_FILE_DIR:MyTarget>)

相关问题

推荐答案

要仅复制 .xml 和 .conf 文件，可以使用 文件（GLOB ...） 命令：

To copy just the .xml and .conf files, you can use the file(GLOB ...) command:

# Gather list of all .xml and .conf files in "/config"
file(GLOB ConfigFiles ${CMAKE_SOURCE_DIR}/config/*.xml
                      ${CMAKE_SOURCE_DIR}/config/*.conf)

foreach(ConfigFile ${ConfigFiles})
  add_custom_command(TARGET MyTarget PRE_BUILD
                     COMMAND ${CMAKE_COMMAND} -E
                         copy ${ConfigFile} $<TARGET_FILE_DIR:MyTarget>)
endforeach()

这是一个类似的过程，以获取所有文件不在 .svn 子目录：

It's a similar process to get all files not in the .svn subdirectory:

# Gather list of all files in "/config"
file(GLOB ConfigFiles RELATIVE ${CMAKE_SOURCE_DIR}/config
     ${CMAKE_SOURCE_DIR}/config/*)

# Gather list of all files in "/config/.svn"
file(GLOB SvnConfigFiles RELATIVE ${CMAKE_SOURCE_DIR}/config 
     ${CMAKE_SOURCE_DIR}/config/.svn/*)

# Remove ".svn" and its contents from the list
list(REMOVE_ITEM ConfigFiles .svn ${SvnConfigFiles})

foreach(ConfigFile ${ConfigFiles})
  add_custom_command(TARGET MyTarget PRE_BUILD
                     COMMAND ${CMAKE_COMMAND} -E
                         copy ${CMAKE_SOURCE_DIR}/config/${ConfigFile}
                              $<TARGET_FILE_DIR:MyTarget>)
endforeach()

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