aws.js

const { argv } = require('yargs');
const prompt = require('gulp-prompt');
const rename = require('gulp-rename');
const awspublish = require('gulp-awspublish');
const invalidate = require('gulp-cloudfront-invalidate-aws-publish');
const gulp = require('gulp');
const fail = require('gulp-fail');
const gulpIf = require('gulp-if');
const gutil = require('gulp-util');
const fs = require('fs-extra');
const path = require('path');
const open = require('open');
const revAll = require('gulp-rev-all');
const querystring = require('querystring');

module.exports = () => {
  const target = argv.production ? 
    'com.politico.interactives.politico.com' : 
    'staging.interactives.politico.com';

  const region = 'us-east-1';

  const publishParams = {
    Bucket: target,
  };

  if (argv.production) {
    publishParams['Cloudfront'] = 'E3V6OHE700RHMR';
  }

  const meta = fs.readJsonSync(
    path.resolve(process.cwd(), 'meta.json'));
  const publisher = awspublish.create({
    accessKeyId: process.env.awsAccessKey,
    secretAccessKey: process.env.awsSecretKey,
    region,
    params: publishParams,
  });
  const awsDirectory = meta.publishPath;

  const headers = {
    'Cache-Control': 'max-age=300, no-transform, public',
  };

  // Ignore these files during versioning
  const versionIgnore = [
    '.html', // html files (not regex)
    /.*images.*$/, // images
    /.*\.json$/, // application data
    /.*\.csv$/, // application data
  ];

  const cloudFrontConfig = {
    distribution: 'E3V6OHE700RHMR',
    accessKeyId: process.env.awsAccessKey,
    secretAccessKey: process.env.awsSecretKey,
    indexRootPath: true,
  };

  return gulp.src('./dist/**/*')
    .pipe(gulpIf(() => {
      // As a dumb check against syncing the entire bucket
      // we check to make sure you're putting your project at
      // least 2 directories deep.
      const depth = awsDirectory.replace(/\/$/, '').split('/').length;
      return depth < 2;
    }, fail(`Can't publish to ${awsDirectory}. Check meta.json and your publishPath setting.`)))
    .on('end', () => {
      gutil.log(
        gutil.colors.cyan(`You're about to publish this project to AWS under directory ${gutil.colors.bold.black.bgYellow(awsDirectory)}. This will sync this directory with your local dist folder and may cause files to be deleted.`));
    })
    .pipe(prompt.confirm('Are you sure?'))
    .pipe(rename((pubPath) => {
      // eslint-disable-next-line no-param-reassign
      pubPath.dirname = path.join(awsDirectory, pubPath.dirname.replace('.\\', ''));
    }))
    .pipe(revAll.revision({
      dontRenameFile: versionIgnore,
      dontUpdateReference: versionIgnore,
    }))
    .pipe(awspublish.gzip())
    .pipe(publisher.publish(headers, { force: false }))
    .pipe(publisher.sync(awsDirectory))
    // eslint-disable-next-line no-extra-boolean-cast
    .pipe(!!gutil.env.invalidate ? invalidate(cloudFrontConfig) : gutil.noop())
    .pipe(publisher.cache())
    .pipe(awspublish.reporter())
    .on('end', () => {
      setTimeout(() => {
        const metaUrl = argv.production ? meta.url : meta.stagingUrl;

        const q = querystring.stringify({ q: metaUrl });
        if (argv.production) {
          open(`https://developers.facebook.com/tools/debug/sharing/?${q}`);        
        }
        open(metaUrl);
      }, 1000);
    });
};