如何在VSCode中通过CMake Tools启动同一CMake文件的主项目

当前.vscode/launch.json配置如下：

{
  "name": "Launch main project",
  "type": "cppdbg",
  "request": "launch",
  // Resolved by CMake Tools:
  "program": "${command:cmake.launchTargetPath}",
  "args": [],
  "stopAtEntry": false,
  "cwd": "${workspaceFolder}",
  "environment": [
    {
      // add the directory where our target was built to the PATHs
      // it gets resolved by CMake Tools:
      "name": "PATH",
      "value": "${env:PATH}:${command:cmake.getLaunchTargetDirectory}"
    }
  ],
  "MIMode": "gdb",
  "setupCommands": [
    {
      "description": "Enable pretty-printing for gdb",
      "text": "-enable-pretty-printing",
      "ignoreFailures": true
    }
  ]
}

CMakeLists.txt内容：

cmake_minimum_required(VERSION 3.2.0...3.5)
project(main_project  VERSION 0.1.0)
set(CPACK_PROJECT_NAME ${PROJECT_NAME})
set(CPACK_PROJECT_VERSION ${PROJECT_VERSION})
include(CPack)

add_subdirectory( tests )  // this is the test project 
add_executable(main_project main.cpp)
target_include_directories(main_project  PRIVATE ${YOUR_DIRECTORY})

方法1：手动指定CMake启动目标 #

• 点击VSCode底部状态栏中CMake Tools显示的当前目标（通常是测试项目名称）
• 在弹出的目标列表里选择main_project作为启动目标
• 重新运行launch配置，此时${command:cmake.launchTargetPath}会自动指向main_project的可执行文件

方法2：直接指定可执行文件路径 #

如果方法1无效，可修改launch.json的program字段，直接填写main_project的实际编译路径：

"program": "${workspaceFolder}/build/main_project"  // 根据你的构建目录结构调整，比如Debug版本可能是${workspaceFolder}/build/Debug/main_project

方法3：调整CMakeLists.txt的目标顺序 #

将主项目的编译代码移到测试项目之前，让CMake优先识别主项目：

cmake_minimum_required(VERSION 3.2.0...3.5)
project(main_project  VERSION 0.1.0)
set(CPACK_PROJECT_NAME ${PROJECT_NAME})
set(CPACK_PROJECT_VERSION ${PROJECT_VERSION})
include(CPack)

add_executable(main_project main.cpp)
target_include_directories(main_project  PRIVATE ${YOUR_DIRECTORY})
add_subdirectory( tests )  // this is the test project 

方法4：设置CMake默认启动目标 #

在CMakeLists.txt末尾添加代码，指定main_project为全局默认启动目标：

set_property(GLOBAL PROPERTY VS_STARTUP_PROJECT main_project)

内容的提问来源于stack exchange，提问作者Chen Peleg