CMakeLists.txt 是通用的c++项目管理文件，
在不同的设备中，环境变量，编译器等都可能不同，
将这些设置都交给CMakeLists.txt , 并不是一个好办法。
为了降低CMakeLists.txt的臃肿程度，简化其判断，
可以针对不同设备，配置不同的CMakePresets.json.
使得项目可以在不同的设备上运行、测试。
一个由visual studio 2022 自动生成的CMakePresets.json，稍稍修改了一下。
{
"version": 3,
"configurePresets": [
{
"name": "windows-base",
"hidden": true,
"generator": "Ninja",
"binaryDir": "${sourceDir}/out/build/${presetName}",
"installDir": "${sourceDir}/out/install/${presetName}",
"cacheVariables": {
"CMAKE_C_COMPILER": "cl.exe",
"CMAKE_CXX_COMPILER": "cl.exe"
},
"environment": {
"MY_ENVIRONMENT_VARIABLE": "Test"
},
"condition": {
"type": "equals",
"lhs": "${hostSystemName}",
"rhs": "Windows"
}
},
{
"name": "x64-debug",
"displayName": "x64 Debug",
"inherits": "windows-base",
"architecture": {
"value": "x64",
"strategy": "external"
},
"cacheVariables": {
"CMAKE_BUILD_TYPE": "Debug"
}
},
{
"name": "x64-release",
"displayName": "x64 Release",
"inherits": "x64-debug",
"cacheVariables": {
"CMAKE_BUILD_TYPE": "Release"
}
},
{
"name": "x86-debug",
"displayName": "x86 Debug",
"inherits": "windows-base",
"architecture": {
"value": "x86",
"strategy": "external"
},
"cacheVariables": {
"CMAKE_BUILD_TYPE": "Debug"
}
},
{
"name": "x86-release",
"displayName": "x86 Release",
"inherits": "x86-debug",
"cacheVariables": {
"CMAKE_BUILD_TYPE": "Release"
}
},
{
"name": "linux-debug",
"displayName": "Linux Debug",
"generator": "Ninja",
"binaryDir": "${sourceDir}/out/build/${presetName}",
"installDir": "${sourceDir}/out/install/${presetName}",
"cacheVariables": {
"CMAKE_BUILD_TYPE": "Debug"
},
"condition": {
"type": "equals",
"lhs": "${hostSystemName}",
"rhs": "Linux"
},
"vendor": {
"microsoft.com/VisualStudioRemoteSettings/CMake/1.0": {
"sourceDir": "$env{HOME}/.vs/$ms{projectDirName}"
}
}
},
{
"name": "macos-debug",
"displayName": "macOS Debug",
"generator": "Ninja",
"binaryDir": "${sourceDir}/out/build/${presetName}",
"installDir": "${sourceDir}/out/install/${presetName}",
"cacheVariables": {
"CMAKE_BUILD_TYPE": "Debug"
},
"condition": {
"type": "equals",
"lhs": "${hostSystemName}",
"rhs": "Darwin"
},
"vendor": {
"microsoft.com/VisualStudioRemoteSettings/CMake/1.0": {
"sourceDir": "$env{HOME}/.vs/$ms{projectDirName}"
}
}
}
]
}
configurePresets 是一个 json 字段 []。
里面包含多个 设置， 这些设置有属性：name, hidden, generator,binaryDir, installDir .... 等组成。
后面的设置可以继承前面的设置。Visual Studio IDE根据选择的编译模式，自动从这里找到对应的配置名。
其中字段：cacheVariables 中的字段可以在 cmakelists中使用。
也可以像下面方法定义：
"cacheVariables": {
"FIRST_CACHE_VARIABLE": {
"type": "BOOL",
"value": "OFF"
},
"SECOND_CACHE_VARIABLE": "ON"
},
environment 可以定义环境变量，上文例子中的引用方法：
$ENV{MY_ENVIRONMENT_VARIABLE}
除了这个配置，还可以配置：buildPresets, testPresets
"buildPresets": [
{
"name": "default",
"configurePreset": "default"
}
],
"testPresets": [
{
"name": "default",
"configurePreset": "default",
"output": {"outputOnFailure": true},
"execution": {"noTestsAction": "error", "stopOnFailure": true}
}
],
也可以包含其他json配置。
"include": [
"otherThings.json",
"moreThings.json"
],
标签：cacheVariables,CMAKE,name,--,CMakePresets,json,Debug,sourceDir From： https://www.cnblogs.com/kingkaixuan/p/17289047.html