正如make clean删除makefile生成的所有文件一样,我想对CMake做同样的事情。我经常发现自己手动地在目录中删除像cmake_install这样的文件。cmake和CMakeCache.txt,以及CMakeFiles文件夹。

是否有像cmake clean这样的命令来自动删除所有这些文件?理想情况下,这应该遵循当前目录的CMakeLists.txt文件中定义的递归结构。


当前回答

我在谷歌上搜索了大约半个小时,我想到的唯一有用的东西是调用find实用程序:

# Find and then delete all files under current directory (.) that:
#  1. contains "cmake" (case-&insensitive) in its path (wholename)
#  2. name is not CMakeLists.txt
find . -iwholename '*cmake*' -not -name CMakeLists.txt -delete

此外,确保在此之前调用make clean(或您正在使用的任何CMake生成器)。

:)

其他回答

你可以这样使用:

add_custom_target(clean-cmake-files
   COMMAND ${CMAKE_COMMAND} -P clean-all.cmake
)

// clean-all.cmake
set(cmake_generated ${CMAKE_BINARY_DIR}/CMakeCache.txt
                    ${CMAKE_BINARY_DIR}/cmake_install.cmake
                    ${CMAKE_BINARY_DIR}/Makefile
                    ${CMAKE_BINARY_DIR}/CMakeFiles
)

foreach(file ${cmake_generated})

  if (EXISTS ${file})
     file(REMOVE_RECURSE ${file})
  endif()

endforeach(file)

我通常创建一个“make clean-all”命令,在前面的例子中添加一个调用“make clean”:

add_custom_target(clean-all
   COMMAND ${CMAKE_BUILD_TOOL} clean
   COMMAND ${CMAKE_COMMAND} -P clean-all.cmake
)

不要尝试将“clean”目标添加为依赖项:

add_custom_target(clean-all
   COMMAND ${CMAKE_COMMAND} -P clean-all.cmake
   DEPENDS clean
)

因为“干净”在CMake中不是一个真正的目标,这是行不通的。

此外,你不应该使用这个“clean-cmake-files”作为任何东西的依赖:

add_custom_target(clean-all
   COMMAND ${CMAKE_BUILD_TOOL} clean
   DEPENDS clean-cmake-files
)

因为,如果你这样做,所有的CMake文件将在clean-all完成之前被擦除,make将抛出一个搜索“CMakeFiles/clean-all.dir/build.make”的错误。因此,在任何情况下,都不能在"anything"前面使用clean-all命令:

add_custom_target(clean-all
   COMMAND ${CMAKE_BUILD_TOOL} clean
   COMMAND ${CMAKE_COMMAND} -P clean-all.cmake
)

这也不行。

我用zsxwing的答案成功解决了以下问题:

我有在多个主机上构建的源代码(在Raspberry Pi Linux板上,在VMware Linux虚拟机上,等等)。

我有一个Bash脚本,根据机器的主机名创建临时目录,就像这样:

# Get hostname to use as part of directory names
HOST_NAME=`uname -n`

# Create a temporary directory for cmake files so they don't
# end up all mixed up with the source.

TMP_DIR="cmake.tmp.$HOSTNAME"

if [ ! -e $TMP_DIR ] ; then
  echo "Creating directory for cmake tmp files : $TMP_DIR"
  mkdir $TMP_DIR
else
  echo "Reusing cmake tmp dir : $TMP_DIR"
fi

# Create makefiles with CMake
#
# Note: switch to the temporary dir and build parent 
#       which is a way of making cmake tmp files stay
#       out of the way.
#
# Note 2: to clean up cmake files, it is OK to
#        "rm -rf" the temporary directories

echo
echo Creating Makefiles with cmake ...

cd $TMP_DIR

cmake ..

# Run makefile (in temporary directory)

echo
echo Starting build ...

make

CMake 3。X

CMake 3.0及以上版本提供了一个“干净”的目标。这将删除任何工件,如目标文件、库文件、可执行文件、生成文件等。

cmake --build C:/foo/build/ --target clean

您还可以清理构建,然后运行构建。在1命令。

cmake --build C:/foo/build --clean-first

但是,这不会清理CMakeCache.txt或相关的CMakeFiles/目录。你可能想这么做。你只需要删除构建文件夹。

# Just delete the build folder
rm C:/foo/build -rf

# You can also just let git delete the build folder as well
git clean -d -f -x

CMake 3.24

现在在CMake 3.24中,你可以执行一个新的构建树配置。这将删除任何现有的CMakeCache.txt文件和相关的CMakeFiles/目录,并从头开始重新创建它们。

一般情况下,你需要这样做:

你想清除CMakeCache.txt中的缓存变量 您希望更改编译器 任何与CMake缓存相关的其他操作

cmake -B C:/foo/build --fresh

简单地发布rm CMakeCache.txt也适用于我。

为此,我使用以下shell脚本:

#!/bin/bash

for fld in $(find -name "CMakeLists.txt" -printf '%h ')
do
    for cmakefile in CMakeCache.txt cmake_install.cmake CTestTestfile.cmake CMakeFiles Makefile
    do
        rm -rfv $fld/$cmakefile
    done
done

如果您使用的是Windows,则使用Cygwin来执行此脚本。