Set Up Debug Launch for All Workspaces in VSCode

Before, I always added .vscode/launch.json to each workspace to launch a debugger in VSCode. I always think I don’t want to do it every time.

But recently, I found a way to set up debug launch configuration for all workspaces. We can use the key called `launch` in settings.json.

For example, if you use vscode-rdbg to debug a ruby program, you can set up the following in .vscode/settings.json to launch debugger in all workspaces. This setting allows you not to need to set up each workspace.

  "launch": {
    "version": "0.2.0",
    "configurations": [
      {
          "type": "rdbg",
          "name": "Debug current file with rdbg",
          "request": "launch",
          "script": "${file}",
          "args": [],
          "askParameters": true
      },
      {
          "type": "rdbg",
          "name": "Debug current test with rdbg",
          "request": "launch",
          "command": "rspec",
          "script": "${file}",
          "args": [],
          "askParameters": false
      }
    ]
  }

See Also:
* https://github.com/ruby/vscode-rdbg
* https://code.visualstudio.com/docs/getstarted/settings#_default-settings