CMake:将文件从源目录复制到二进制目录 [英] CMake: copy file from source directory to binary directory
问题描述
我试图在CLion上创建一个简单的项目。它使用CMake(我这里是新的)生成Makefiles构建项目(或某种类型)
所有我需要的是转移一些非项目文件
这个文件包含测试数据和应用程序打开它来读取它们。我尝试了几种方法:
-
Via
档案(COPY ...
档案(COPY $ {CMAKE_CURRENT_SOURCE_DIR} /input.txt
DESTINATION $ {CMAKE_CURRENT_BINARY_DIR} txt
看起来不错,但它只工作一次,下次运行后不重新复制文件。
/ li>
-
Via
add_custom_command
-
OUTPUT
版本add_custom_command(
OUTPUT $ {CMAKE_CURRENT_BINARY_DIR} /input.txt
COMMAND $ {CMAKE_COMMAND} -E copy
$ {CMAKE_CURRENT_SOURCE_DIR} /input.txt
$ {CMAKE_CURRENT_BINARY_DIR} /input.txt)
-
TARGET
版本add_custom_target(foo)
add_custom_command(
TARGET foo
COMMAND $ {CMAKE_COMMAND} copy
$ {CMAKE_CURRENT_BINARY_DIR} / test / input.txt
$ {CMAKE_SOURCE_DIR})
$ b -
我做错了什么?
您可以考虑使用使用 COPYONLY
选项配置configure_file :
configure_file ; input> < output> COPYONLY)
与档案(COPY ...)不同
它会在输入和输出之间创建文件级依赖关系,即:
如果输入文件被修改,构建系统将重新-run CMake重新配置文件并再次生成构建系统。
I'm trying to create a simple project on CLion. It uses CMake (I'm new here) to generate Makefiles to build project (or some sort of it)
All I need to is transfer some non-project file (some sort of resource file) to binary directory each time when I run the my code.
That file contains test data and application open it to read them. I tried several ways to do so:
Via
file(COPY ...
file(COPY ${CMAKE_CURRENT_SOURCE_DIR}/input.txt DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/input.txt
Looking good but it work just once and not recopy file after next run.
Via
add_custom_command
OUTPUT
versionadd_custom_command( OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/input.txt COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/input.txt ${CMAKE_CURRENT_BINARY_DIR}/input.txt)
TARGET
versionadd_custom_target(foo) add_custom_command( TARGET foo COMMAND ${CMAKE_COMMAND} copy ${CMAKE_CURRENT_BINARY_DIR}/test/input.txt ${CMAKE_SOURCE_DIR})
But no one of it work.
What am I doing wrong?
You may consider using configure_file with the COPYONLY
option:
configure_file(<input> <output> COPYONLY)
Unlike file(COPY ...)
it creates a file-level dependency between input and output, that is:
If the input file is modified the build system will re-run CMake to re-configure the file and generate the build system again.
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