collectAndOperatewithEntries.js

const glob = require('fast-glob');
const path = require('path');

function collectEntries(config, extension) {
  // we have called all our js and scss files like this `component-name.entry.js` and `component-name.entry.scss`
  const pattern = `**/*.entry.${extension}`;
  // if you take a look at project structure we defined
  // and the project.paths.conig.js file above, you will see the path to iterate in this case
  // is the `tenants/tenantN/components/package/src/frontend/components`
  // since when globbing cwd will be the directory where this file is at
  // you need to pass this path as options
  const options = { cwd: `tenants/tenantN/components/package/src/frontend/components` };
  const tree = glob.sync(pattern, options);
  let sources = {};
  tree.forEach((file) => {
    // operate here
  });

  return sources;
};