Webpack config to make ember-changeset-validations work with embroider optimized

webpack.config.js

module.exports = {
  module: {
    rules: [
      // ember-validators (dependency of ember-changeset-validations)
      // does dynamic imports, which isn't necessary and messes up
      // embroider-optimized, so rewrite it to statically import the
      // only two validators we actually use/need.
      {
        test: /\/ember-validators\/index\.js$/,
        loader: 'string-replace-loader',
        options: {
          search: '^[\\s\\S]+$',
          flags: '',
          replace: [
            `import presence from './presence';`,
            `import format from './format';`,
            ``,
            `export function validate(type, ...args) {`,
            `  return { presence, format }[type](...args);`,
            `}`,
          ].join('\n'),
          strict: true,
        },
      },
      // ember-changeset-validations imports from validated-changeset, but
      // doesn't declare a dependency on it in package.json (it relies on
      // ember-changeset's dependency). This doesn't work under embroider
      // optimized, so we hack ember-changeset to re-export the symbols that
      // ember-changeset-validations needs, and then hack
      // ember-changeset-validations to import from ember-changeset instead of
      // directly from validated-changeset
      {
        test: /\/ember-changeset\/index.js$/,
        loader: 'string-replace-loader',
        options: {
          search: /^/,
          replace:
            "export { lookupValidator, isPromise } from 'validated-changeset';",
          strict: true,
        },
      },
      {
        test: /\/ember-changeset-validations\/(index.js|utils\/handle-multiple-validations.js)/,
        loader: 'string-replace-loader',
        options: {
          search: /from 'validated-changeset'/,
          replace: "from 'ember-changeset'",
          strict: true,
        },
      },
    ],
  },
  resolve: {
    alias: {
      // validated-changeset points at a browser bundle, so let's get the ES6
      // module instead
      'validated-changeset': 'validated-changeset/dist/es',
    },
  },
};