/**

 * Copyright (c) Meta Platforms, Inc. and affiliates.

 *

 * This source code is licensed under the MIT license found in the

 * LICENSE file in the root directory of this source tree.

 */

'use strict';

const execFileSync = require('child_process').execFileSync;

const exec = (command, args) => {

  console.log('> ' + [command].concat(args).join(' '));

  const options = {

    cwd: process.cwd(),

    env: process.env,

    stdio: 'pipe',

    encoding: 'utf-8',

  };

  return execFileSync(command, args, options);

};

const execGitCmd = args => exec('git', args).trim().toString().split('\n');

const listChangedFiles = () => {

  const mergeBase = execGitCmd(['merge-base', 'HEAD', 'main']);

  return new Set([

    ...execGitCmd(['diff', '--name-only', '--diff-filter=ACMRTUB', mergeBase]),

    ...execGitCmd(['ls-files', '--others', '--exclude-standard']),

  ]);

};

module.exports = listChangedFiles;