zoro-cli/lib/plugins/config-lib/generator.js

https://github.com/vuejs/vue-cli

module.exports = ({
  api,
  rootOptions,
  Types,
  pkg
}) => {
  const {
    type,
    ui,
    cssPreprocessor
  } = rootOptions;
  const {
    weblib,
    nodelib
  } = Types;

  if (type === weblib || type === nodelib) {
    delete pkg.private;
    api.render('./template');

    if (cssPreprocessor === 'postcss') {
      api.render('./template-postcss');
    }

    const files = ['bin', 'lib', 'src', 'dist', 'index.js'];

    if (ui === 'vue') {
      files.push('vue');
    }

    api.extendPackage({
      files,
      // https://www.typescriptlang.org/docs/handbook/declaration-files/publishing.html
      types: './lib/index.d.ts'
    });
  }
};