如何从 cmake `file(GLOB ... )` 模式中排除单个文件?

问题描述 投票:0回答:5

我的

CMakeLists.txt
包含这一行:

file(GLOB lib_srcs Half/half.cpp Iex/*.cpp IlmThread/*.cpp Imath/*.cpp IlmImf/*.cpp)

并且

IlmImf
文件夹包含
b44ExpLogTable.cpp
,我需要从构建中排除它。

如何实现?

cmake
5个回答
136
投票

可以使用

list
函数来操作列表,例如:

list(REMOVE_ITEM <list> <value> [<value> ...])

就你而言,也许这样的方法会起作用:

list(REMOVE_ITEM lib_srcs "IlmImf/b44ExpLogTable.cpp")

84
投票

FILTER 是另一种选择,在某些情况下可能更方便:

list(FILTER <list> <INCLUDE|EXCLUDE> REGEX <regular_expression>)

此行排除以所需文件名结尾的每个项目:

list(FILTER lib_srcs EXCLUDE REGEX ".*b44ExpLogTable\\.cpp$")

这里是 cmake 的 Regex 规范

The following characters have special meaning in regular expressions:

^         Matches at the beginning of input
$         Matches at the end of input
.         Matches any single character
[ ]       Matches any character(s) inside the brackets
[^ ]      Matches any character(s) not inside the brackets
 -        Inside brackets, specifies an inclusive range between
          characters on either side e.g. [a-f] is [abcdef]
          To match a literal - using brackets, make it the first
          or the last character e.g. [+*/-] matches basic
          mathematical operators.
*         Matches preceding pattern zero or more times
+         Matches preceding pattern one or more times
?         Matches preceding pattern zero or once only
|         Matches a pattern on either side of the |
()        Saves a matched subexpression, which can be referenced
          in the REGEX REPLACE operation. Additionally it is saved
          by all regular expression-related commands, including
          e.g. if( MATCHES ), in the variables CMAKE_MATCH_(0..9).

4
投票

试试这个:

CMakeLists.txt

install(DIRECTORY   ${CMAKE_SOURCE_DIR}/ 
            DESTINATION ${CMAKE_INSTALL_PREFIX}
            COMPONENT   copy-files
            PATTERN     ".git*"   EXCLUDE
            PATTERN     "*.in"    EXCLUDE
            PATTERN     "*/build" EXCLUDE)

add_custom_target(copy-files
            COMMAND ${CMAKE_COMMAND} -D COMPONENT=copy-files
            -P cmake_install.cmake)
$cmake <src_path> -DCMAKE_INSTALL_PREFIX=<install_path>
$cmake --build . --target copy-files

0
投票

我有一个值得注意的替代解决方案:将源标记为头文件。 这样,它就不会成为构建过程的一部分,但会在 IDE 中可见(在 Visual Studio 和 Xcode 上验证):

set_source_files_properties(b44ExpLogTable.cpp,
                            PROPERTIES HEADER_FILE_ONLY TRUE)

当某些源文件是特定于平台的时,我会使用它。这很棒,因为如果必须在许多地方修改某个符号并在一个平台上工作,那么其他平台特定的源将可见并且也可以更新。

为此,我创建了一个辅助函数,它在我当前的项目中非常有用。

我还没有对文件 GLOB 使用此方法。


0
投票

此页面上接受的答案无法正常工作,如此处所述。您必须获取要排除的文件的绝对路径。所以我基于this提案开发了一个简单的CMake功能:

function(efile out_var)
  set(options)
  set(oneValueArgs GLOB)
  set(multiValueArgs EXCLUDE)
  cmake_parse_arguments(EFILE "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})

  # Use file(GLOB ...) to collect all files matching the provided patterns
  file(GLOB_RECURSE temp_files CONFIGURE_DEPENDS ${EFILE_GLOB})

  # Apply exclusions
  foreach(exclude_pattern ${EFILE_EXCLUDE})
    # Filtering out files from the list that match the exclude patterns
    list(FILTER temp_files EXCLUDE REGEX "${exclude_pattern}")
  endforeach()

  # Set the results to the output variable
  set(${out_var} "${temp_files}" PARENT_SCOPE)
endfunction()

您可以在您的 CMake 项目中使用

efile
函数,代表扩展
file

# Assuming you want to include all C files in the src directory but exclude the main.c file
efile(my_sources GLOB "${CMAKE_CURRENT_SOURCE_DIR}/src/*.c" EXCLUDE "main.c")

# Print the list of files collected
message("Sources: ${my_sources}")

请尝试一下,让我知道它是否正常工作。

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