replace all package.json byindex.js

rename.js

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

const replacePackageByIndex = function(dir) {
  const list = fs.readdirSync(dir);
  const dirName = path.basename(dir)
  list.forEach(function(file) {
    if (file === "package.json") {
      fs.writeFile(`${dir}/index.js`, createIndexContents(dirName), (err) => {
        if (err) {
          console.error(err)
        }
      })
      fs.unlink(`${dir}/package.json`, (err) => {
        if (err) {
          console.error(err)
        }
      })
    } else {
      const filePath = dir + '/' + file;
      const stat = fs.statSync(filePath);
      if (stat && stat.isDirectory()) { 
          /* Recurse into a subdirectory */
          replacePackageByIndex(filePath)
      }
    }
  });
}

const createIndexContents = (dirName) => {
  return `export { default } from './${dirName}'`
}

replacePackageByIndex('src')