Migrate JS file to TS

ts-migrate.js

var join = require('path').join;
var cp = require('child_process');

/**
 * Migrate a file to TypeScript.
 *
 * @example
 * // will rename file and try to infer types
 * yarn ts:migrate ./src/utils.js
 *
 */
(() => {
  const args = process.argv.filter((arg) => !arg.includes('node') && !arg.includes('scripts'));

  args.forEach((path) => {
    const tsPath = path.replace('js', 'ts');

    cp.exec(`yarn ts-migrate rename . -s "${path}" && yarn ts-migrate migrate . -s "${tsPath}"`).stdout.pipe(
      process.stdout
    );
  });
})();