Example VSCode Debug Config for debugging rollup and jest tests

launch.json

{
  "version": "0.2.0",
  "configurations": [
    {
      "type": "node",
      "request": "launch",
      "name": "Debug Rollup",
      "program": "${workspaceFolder}/node_modules/.bin/rollup",
      "args": ["-c"],
      "internalConsoleOptions": "openOnSessionStart"
    },
    {
      "type": "node",
      "request": "launch",
      "name": "Debug Jest",
      "program": "${workspaceFolder}/node_modules/.bin/jest",
      "args": ["-i", "--config=${workspaceFolder}/jest.config.js"],
      "internalConsoleOptions": "openOnSessionStart"
    },
    {
      "type": "node",
      "request": "attach",
      "name": "Attach",
      "port": 9229,
      "skipFiles": ["<node_internals>/**"]
    }
  ]
}

Place under <repo-root>/.vscode/launch.json

Thanks for this!

I had to update the path to rollup to "${workspaceFolder}/node_modules/rollup/dist/bin/rollup":

    {
      "type": "pwa-node",
      "request": "launch",
      "name": "dev (rollup/svelte)",
      "program": "${workspaceFolder}/node_modules/rollup/dist/bin/rollup",
      "args": [
        "-c",
        "--watch"
      ],
      "internalConsoleOptions": "openOnSessionStart"
    },

Why: for my version at least, node_modules/.bin/rollup is actually a shell script wrapper