replace

replace.js

const replace = require("replace-in-file")

const files = "./test/**/*.js"

const opts1 = {
  files,
  from: /import\s([a-zA-Z]*)\sfrom\s("[a-z\.\/\_\-\@]*")/g,
  to: (match, p1, p2) => `const ${p1} = require(${p2})`,
}

const opts2 = {
  files,
  from: /import\s"([a-z\.\/\_\-\@]*)"\s*\n/g,
  to: (match, p1) => `require(${p1})`,
}

const opts3 = {
  files,
  from: /import\s(\{[a-zA-Z\,\s]*})\sfrom\s("[a-z\.\/\_\-\@]*")/g,
  to: (match, p1, p2) => `const ${p1} = require(${p2})`,
}

Promise.all([replace(opts1), replace(opts2), replace(opts3)])
  .then(changes => {
    console.log(changes)
  })
  .catch(error => {
    console.error("Error occurred:", error)
  })