我想有以下结构 A - > B - > C ,其中:
- C ,第三方库的包装器,非常的基本代码等。
- B 是常见的类,函数和数据
- / ul>
- 由于所有三个项目都在进行中,我想有能力建立 C , C + B 和 C + B + A 一个镜头。
- 我宁愿静态链接超过动态,因此 C 和 C + / code>将是静态库, C + B + A 将是可执行文件
- cmake列表和配置文件简单干净。我在官方wiki和互联网上发现的例子都是相当大和怪异的。
- 如果它不需要改变多于几行,这将是巨大的更改 A , B 或 C 的位置文件系统。
- 所有这三个组件都使用google-test,但我不确定是否对项目布局很重要。
- CMake必须知道依赖关系的位置 - 相对或绝对 - by
- 有一个单一的源代码树(你不想要的那个)
- 具有多个可执行文件的CMake共享库
- CMake:如何设置源,库和CMakeLists.txt依赖?
- 包含/ libraries /二进制文件的公共目录位置
- CMake库输出的自定义目录
- cmake install不在Windows上安装库
- 通过配置文件/变量定义获取路径
- 如何获取cmake以查找我的boost安装 a>
- 如何为CMake构建过程本身添加_custom_command()?
- 在主机上提供
- 使cmake库自动通过其他cmake包访问
- cmake不会在ExternalProject_Add中正确运行build_command
为了使您的CMake文件尽可能简单,我建议将您的CMake代码分成单独的专用文件: - 有一个单一的源代码树(你不想要的那个)
- 首选工具链文件 if(SomeCompiler)语句
- 将共同/重复代码零件移动为
- 将复杂的非目标特定代码零件移动到自己的(CMake)脚本文件中
- C is boilerplate code, wrappers for third-party libraries, very basic code etc.
- B is the common classes, functions and data structures specific to the project's domain.
- A is the project itself.
- As all three projects are in-progress, I would like to have an ability to build C, C+B and C+B+A in one shot.
- I would prefer the static linkage over dynamic, so that C and C+B would be static libraries, and C+B+A would be the executable
- I would like to keep cmake lists and config files simple and clean. Examples which I found in the official wiki and over the internet are pretty big and monstrous.
- It would be great if it won't require changing more than a couple of lines if I'd change the locations of A, B or C in the filesystem.
- All these three components are using google-test, but I'm not sure if it is important for the project layout.
- CMake has to know the location of the dependencies - relative or absolute - by
- having a monolithic source tree (the one you don't want anymore)
- CMake share library with multiple executables
- CMake: How to setup Source, Library and CMakeLists.txt dependencies?
- a common directory location for includes/libraries/binaries
- Custom Directory for CMake Library Output
- cmake install not installing libraries on windows
- getting the paths via config files/variable definitions
- How can I get cmake to find my boost installation
- How to add_custom_command() for the CMake build process itself?
- using registration in or installation from a database provided on the host
- Making cmake library accessible by other cmake packages automatically
- cmake wont run build_command in ExternalProject_Add correctly
- having a monolithic source tree (the one you don't want anymore)
- To keep your CMake files as simple as possible I would recommend to group your CMake code into separate dedicated files:
- Prefer toolchain files over if(SomeCompiler) statements
- Move common/repeating code parts as function() bodies into a shared CMake include file
- Move complex non-target specific code parts into their own (CMake) script files
我想方便地重用 C 或 B(+ C)在未来在我的其他项目。此外,我有以下要求:
我对cmake很新鲜,我甚至不明白是否更好写 XXXConfig.cmake 或 FindXXX.cmake 文件。另外,我不知道,我应该如何使用 X_INCLUDE_DIRS 传递从子组件到父组件的相对路径。
解决方案首先我必须承认我同意@Tsyvarev。您的CMake环境应适合您的流程/工作流程,并应考虑项目规模和团队结构。
因此,这个问题的这部分很难回答我将专注于技术部分:
示例代码
请求 find_package()变体,使用在CMake项目中使用CMake启用的库和上面列出的内容:
MyCommonCode.cmake
)文件( WRITE$ {CMAKE_CURRENT_BINARY_DIR} / $ {_ target} Config.cmake include(\\ $ \ {CMAKE_CURRENT_LIST_DIR\} /${_target}Targets.cmake\) set_property( TARGET $ {_ target} APPEND PROPERTY INTERFACE_INCLUDE_DIRECTORIES \$ {_ include_dir} \)) export( TARGETS $ {_ target} FILE$ {CMAKE_CURRENT_BINARY_DIR} / $ {_ target} Targets.cmake EXPORT_LINK_INTERFACE_LIBRARIES ) export(PACKAGE $ {_ target}) endfunction(my_export_target)C / CMakeLists.txt
include(MyCommonCode。 cmake) ... my_export_target(C$ {CMAKE_CURRENT_SOURCE_DIR} / include)$ b b
B / CMakeLists.txt
include(MyCommonCode.cmake) find_package(C REQUIRED) ... target_link_libraries(BC) my_export_target(B$ {CMAKE_CURRENT_SOURCE_DIR} / include)A / CMakeLists.txt
code> include(MyCommonCode.cmake) find_package(B REQUIRED) ... target_link_libraries(AB)这将保持所有3个构建环境分离,只共享相对静态的 MyCommonCode.cmake 文件。所以在这种方法中,我到目前为止还没有涵盖你的第一点,但建议使用外部脚本链接/触发您的A / B / C的构建步骤。
I would like to have the following structure A -> B -> C, where:
I would like to make it easy to reuse C or B(+C) in future in my other projects. In addition, I have the following requirements:
I am pretty new to cmake and I don't even understand is it better to write XXXConfig.cmake or FindXXX.cmake files. Also, I am not sure, how should I pass relative paths from subcomponent to the parent component using X_INCLUDE_DIRS.
解决方案First I have to admit that I agree with @Tsyvarev. Your CMake environment should fit to your processes/workflow and should take project sizes and team structure into account. Or generally speaking the environment CMake will be used in. And this tends to be - in a positive way - very alive.
So this part of your question is difficult to answer and I'll concentrate on the technical part:
Example Code
Since you have specifically asked for the find_package() variant, taking Use CMake-enabled libraries in your CMake project and the things listed above:
MyCommonCode.cmake
cmake_policy(SET CMP0022 NEW) function(my_export_target _target _include_dir) file( WRITE "${CMAKE_CURRENT_BINARY_DIR}/${_target}Config.cmake" " include(\"\$\{CMAKE_CURRENT_LIST_DIR\}/${_target}Targets.cmake\") set_property( TARGET ${_target} APPEND PROPERTY INTERFACE_INCLUDE_DIRECTORIES \"${_include_dir}\" ) " ) export( TARGETS ${_target} FILE "${CMAKE_CURRENT_BINARY_DIR}/${_target}Targets.cmake" EXPORT_LINK_INTERFACE_LIBRARIES ) export(PACKAGE ${_target}) endfunction(my_export_target)C/CMakeLists.txt
include(MyCommonCode.cmake) ... my_export_target(C "${CMAKE_CURRENT_SOURCE_DIR}/include")B/CMakeLists.txt
include(MyCommonCode.cmake) find_package(C REQUIRED) ... target_link_libraries(B C) my_export_target(B "${CMAKE_CURRENT_SOURCE_DIR}/include")A/CMakeLists.txt
include(MyCommonCode.cmake) find_package(B REQUIRED) ... target_link_libraries(A B)This keeps all 3 build environments separate, only sharing the relatively static MyCommonCode.cmake file. So in this approach I have so far not covered your first point, but would recommend the use of a external script to chain/trigger your build steps for A/B/C.
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