build.js

'use strict';

process.env.NODE_ENV = 'production';
process.env.BABEL_ENV = 'production';

process.on('unhandledRejection', (err) => {
  throw err;
});

const babel = require('@babel/core');
const fs = require('fs');
const readAllFiles = require('../utils/readAllFiles');
const deletePath = require('../utils/deletePath');
const resolverPath = require('../utils/resolverPath');
const babelConfig = require('../configs/babelConfig');

process.on('unhandledRejection', (err) => {
  throw err;
});

const APP_PATH = resolverPath('src/lib');
const BUILD_PATH = resolverPath('dist');

deletePath(BUILD_PATH);
fs.mkdirSync(BUILD_PATH);
console.log(`Create directory:\t${BUILD_PATH}`);

const files = readAllFiles(APP_PATH);

files.map((path) => {
  const newPath = path.name.replace(APP_PATH, BUILD_PATH);
  if (path.isFile) {
    if (
      path.name.match('^.+\\.(js|jsx|ts|tsx)$') &&
      !path.name.match('^.+\\.d.ts$')
    ) {
      const result = babel.transformFileSync(path.name, babelConfig);
      fs.appendFileSync(newPath, result.code);
    } else {
      fs.appendFileSync(newPath, fs.readFileSync(path.name));
    }

    console.log('\x1b[32m', `Create file:\t\t${newPath}`, '\x1b[0m');
  } else {
    fs.mkdirSync(newPath);

    console.log(`Create directory:\t${newPath}`);
  }
});