joystream/pioneer/packages/old-apps/app-accounts/scripts/vanitygen.js

#!/usr/bin/env node
/* eslint-disable @typescript-eslint/no-var-requires */
// Copyright 2017-2019 @polkadot/app-accounts authors & contributors
// This software may be modified and distributed under the terms
// of the Apache-2.0 license. See the LICENSE file for details.

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

const [compiled] = ['../vanitygen/cli.js']
  .map((file) => path.join(__dirname, file))
  .filter((file) => fs.existsSync(file));

if (compiled) {
  require(compiled);
} else {
  require('@babel/register')({
    extensions: ['.js', '.ts'],
    plugins: [
      ['module-resolver', {
        alias: {}
      }]
    ]
  });
  require('../src/vanitygen/cli.ts');
}