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CMakeLists.txt for lazybones like me
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| cmake_minimum_required(VERSION 3.3.0) | |
| project(blablabla VERSION 0.1.0) | |
| set(CMAKE_CXX_STANDARD 20) | |
| #include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake) | |
| #conan_basic_setup() | |
| #include_directories(${CONAN_INCLUDE_DIRS}) | |
| #link_directories(${CONAN_LIB_DIRS}) | |
| #link_libraries(${CONAN_LIBS} ${CONAN_SYSTEM_LIBS}) | |
| message("-- Search files in ${CMAKE_CURRENT_SOURCE_DIR}") | |
| set(accepted_extension .cc .cpp .cxx) | |
| file(GLOB entries RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} "*") | |
| foreach(filepath IN LISTS entries) | |
| set(filepath "${CMAKE_CURRENT_SOURCE_DIR}/${filepath}") | |
| if(IS_DIRECTORY "${filepath}" AND EXISTS "${filepath}/CMakeLists.txt" AND NOT IS_DIRECTORY "${filepath}/CMakeLists.txt") | |
| message("-- including subdir ${filepath}") | |
| add_subdirectory(${filepath}) | |
| else() | |
| get_filename_component(extension ${filepath} LAST_EXT) | |
| if(extension IN_LIST accepted_extension) | |
| get_filename_component(target ${filepath} NAME_WE) | |
| message(" -- build ${filepath} -> ${target}") | |
| add_executable(${target} ${filepath}) | |
| endif() | |
| endif() | |
| endforeach() |
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| message("-- Search files in ${CMAKE_CURRENT_SOURCE_DIR}") | |
| set(accepted_extension .cc .cpp .cxx) | |
| file(GLOB entries RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} "*") | |
| foreach(filepath IN LISTS entries) | |
| set(filepath "${CMAKE_CURRENT_SOURCE_DIR}/${filepath}") | |
| if(IS_DIRECTORY "${filepath}" AND EXISTS "${filepath}/CMakeLists.txt" AND NOT IS_DIRECTORY "${filepath}/CMakeLists.txt") | |
| message("-- including subdir ${filepath}") | |
| add_subdirectory(${filepath}) | |
| else() | |
| get_filename_component(extension ${filepath} LAST_EXT) | |
| if(extension IN_LIST accepted_extension) | |
| get_filename_component(target ${filepath} NAME_WE) | |
| message(" -- build ${filepath} -> ${target}") | |
| add_executable(${target} ${filepath}) | |
| endif() | |
| endif() | |
| endforeach() |
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最近重新学C++，重新写C++，一个个文件创建也没有多麻烦……但是就是懒……就写了简单的一个个目录自己找源文件的逻辑。不需要自己一个个写add_executable，只要复制CMakeLists就够了。万一要改个配置啊什么的，也可以在目录里面的CMakeLists直接改就行。
还有一种写法是直接用file(GLOB_RECURSE ...)获取所有文件，然后每个文件根据路径生成一个target，一个CMakeLists搞定。如果只是打打oj，那这样做完全ok。但是这样有个问题是如果要对单个target做一些修改，比如说想要几个文件生成一个target或者生成lib或者什么的，就会非常麻烦。所以自己决定啦。要用这种更无脑但是比较难改的也很简单，只要把GLOB改成GLOB_RECURSE在CMAKE_SOURCE_DIR中搜索就可以了。