rollup-plugin-watch/dist/plugin.mjs

A rollup plugin to specify directories and files to watch

import { createFilter } from '@rollup/pluginutils';
import fs from 'fs';
import path from 'path';
import process from 'process';

var index = (options = {}) => {
  const dir = options.dir;
  const filter = createFilter(options.include ?? [], options.exclude ?? []);
  return {
    name: "watch",
    buildStart() {
      const watch = (src) => {
        const filesToWatch = fs.readdirSync(src);
        for (let file of filesToWatch) {
          const fullPath = path.join(process.cwd(), src, file);
          const stats = fs.statSync(fullPath);
          if (!filter(fullPath)) continue;
          if (stats.isFile()) {
            this.addWatchFile(fullPath);
          } else if (stats.isDirectory()) {
            watch(fullPath);
          }
        }
      };
      watch(dir);
    }
  };
};

export { index as default };