text: const { writeFileSync, readFileSync, readdirSync, statSync, mkdirSync } = require('fs');
  const {
    default: { patch },
  } = require('../../webpack');
  
  const copyFile = (source, dest) => {
    const data = readFileSync(source).toString();
    const patchedData = patch(data);
    writeFileSync(dest, patchedData || data);
  };
  
  const copy = (source, target) => {
    const list = readdirSync(source);
    for (const i of list) {
      const sourceFile = `${source}/${i}`;
      const targetFile = `${target}/${i}`;
  
      const stat = statSync(sourceFile);
      if (stat.isDirectory()) {
        mkdirSync(`${target}/${i}`);
        copy(sourceFile, targetFile);
      } else {
        copyFile(sourceFile, targetFile);
      }
    }
  };
  
  const TARGET = `${__dirname}/react-dom`;
  
  mkdirSync(TARGET);
  
  copy('./node_modules/react-dom/', TARGET);
  