vant/build/bin/get-components.js

const fs = require('fs');
const path = require('path');

module.exports = function() {
  const dirs = fs.readdirSync(path.resolve(__dirname, '../../packages'));
  const excludes = ['index.js', 'vant-css', 'mixins', 'utils'];
  return dirs.filter(dirName => excludes.indexOf(dirName) === -1)
}