This module is used by the Rollup command line interface to enable automatic incremental rebuilds.
Install it to your project like so...
npm install --save-dev rollup-watch...then invoke it by adding the --watch flag (or -w) to the command that starts Rollup. In this example, npm run dev will create your bundle then recreate it whenever its sources change:
// package.json { // ... "scripts": { "build": "rollup -c", "dev": "rollup -c -w" } }You can specify watch options in your rollup.config.js file:
// rollup.config.js export default { entry: 'src/main.js', ..., watch: { chokidar: { // if the chokidar option is given, rollup-watch will // use it instead of fs.watch. You will need to install // chokidar separately. // // this options object is passed to chokidar. if you // don't have any options, just pass `chokidar: true` }, // include and exclude govern which files to watch. by // default, all dependencies will be watched exclude: ['node_modules/**'] } };