Vscode one click compilation and debugging

In this paper, the reference ：vscode One click configuration C/C++ Multiple C And CPP File compilation and tasks.json and launch.json principle
Last article we learned about VScode How it works , But the actual project must be composed of multiple source files and modules . At this time, you can use the CMake Conduct configuration Engineering , Then proceed make compile .

In the last article, we know VScode The working principle of depends mainly on the execution of tasks , namely task.json. adopt CMake For the configured project, we only need to execute the following instructions , You can complete the compilation of the whole project .

CMake . && make

Realize the idea

1. To write CMake Script
2. function CMake Script generation makefile, And then execute make Compile the file .

CMake The output directory is still ：build. So the task is mainly divided into two steps ： The first step is to create Build Catalog , The second step is Build Directory execution CMake Instructions ：CMake ../
establish build Catalog

{
    
            "type":"shell",
            "label": "mkBuild",
            "command":"mkdir",
            "args": [
            // Here you need to specify parameters p, Otherwise, if build If the directory exists, the task will report an error 
                "-p",
                "build"
            ],

            "options": {
    
                "cwd": "${workspaceFolder}"
            },
        },

stay build Directory execution CMake

{
    
            "type":"shell",
            "label": "executeCmake",
            "command":"cmake",
            "args": [
                "../",
            ],

            "options": {
    
                "cwd": "${workspaceFolder}/build"
            },
			// Here you need to specify the dependent tasks mkBuild, from mkBuild establish build Catalog 
            "dependsOn":"mkBuild"
        },

stay build Directory execution make

{
    
            "type":"shell",
            "label": "execMake",
            "command":"make",
            "args": [
            ],

            "options": {
    
                "cwd": "${workspaceFolder}/build"
            },
			// rely on CMake Mission 
            "dependsOn":"executeCmake"
        }

At this time in launch.json Assigned tasks inside execMake that will do .

"preLaunchTask": "execMake",

After configuration, press run F5 Just debug , If debugging is required CMake It must be specified set(CMAKE_BUILD_TYPE "Debug"), Otherwise, it will not be debugged .

Here is the complete configuration file ：
task.json

{
    
    "tasks": [
        {
    
            "type":"shell",
            "label": "mkBuild",
            "command":"mkdir",
            "args": [
                "-p",
                "build"
            ],

            "options": {
    
                "cwd": "${workspaceFolder}"
            },
        },

        {
    
            "type":"shell",
            "label": "executeCmake",
            "command":"cmake",
            "args": [
                "../",
            ],

            "options": {
    
                "cwd": "${workspaceFolder}/build"
            },

            "dependsOn":"mkBuild"
        },

        {
    
            "type":"shell",
            "label": "execMake",
            "command":"make",
            "args": [
            ],

            "options": {
    
                "cwd": "${workspaceFolder}/build"
            },

            "dependsOn":"executeCmake"
        }
    ],
    "version": "2.0.0"
}

launch.json

{
    
    //  Use  IntelliSense  Learn about properties . 
    //  Hover to see the description of an existing property .
    //  For more information , Please visit : https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
    
            "name": "g++ -  Generate and debug active files ",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceFolder}/build/hellow",
            "args": [],
            "stopAtEntry": false,
            "cwd": "${workspaceFolder}/build",
            "environment": [],
            "externalConsole": false,
            "MIMode": "gdb",
            "setupCommands": [
                {
    
                    "description": " by  gdb  Enable neat printing ",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                }
            ],
            "preLaunchTask": "execMake",
            "miDebuggerPath": "/usr/bin/gdb"
        }
    ]
}

because CMakeLists.txt The code of is not universal , So I won't post it here for the time being . If you don't understand CMake You can refer to ： Article to read CMake