gulpfile: parallel image processing

gulpfile.js

@@ -1,12 +1,12 @@
 /* eslint-disable no-console */
 const gulp = require('gulp');
 const fs = require('fs');
-const merge = require('merge-stream');
 const exec = require('child_process').exec;
 const log = require('fancy-log');
 const parseArgs = require('minimist');
 const browserSync = require('browser-sync').create();
 const concat = require('gulp-concat');
+const parallel = require('concurrent-transform');
 const imageResize = require('gulp-image-resize');
 
 gulp.task('scripts:games', function (callback) {
@@ -40,7 +40,7 @@ gulp.task('assets:images', function() {
         .pipe(imageResize({ width: 400, height: 240, crop: false }))
         .pipe(gulp.dest('build/images/screenshots/thumbs'));
 
-    return merge(baseImages, jumbotronImages, bannerImages, boxartImages, iconImages, screenshotImages);
+    return parallel(baseImages, jumbotronImages, bannerImages, boxartImages, iconImages, screenshotImages);
 });
 
 gulp.task('assets:js', function() {

package.json

@@ -11,6 +11,7 @@
   "dependencies": {
     "bootstrap-sass": "^3.4.3",
     "browser-sync": "^2.27.11",
+    "concurrent-transform": "^1.0.0",
     "cssnano": "^5.1.14",
     "fancy-log": "^2.0.0",
     "gulp": "^4.0.2",

yarn.lock

@@ -825,6 +825,11 @@ concat-with-sourcemaps@^1.0.0:
   dependencies:
     source-map "^0.6.1"
 
+concurrent-transform@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/concurrent-transform/-/concurrent-transform-1.0.0.tgz#7a0fdea2f8096239487fdb0addb5edaa7f596f6c"
+  integrity sha512-k/b+CZJbUQW7A/51ZGFc/bQAbGpUuitvhK0hJi/9vJ7l3QBp5Kib+kSaNnrItDTFLx4pYJqCfN95FTuLUFaZGQ==
+
 config-chain@^1.1.11:
   version "1.1.13"
   resolved "https://registry.yarnpkg.com/config-chain/-/config-chain-1.1.13.tgz#fad0795aa6a6cdaff9ed1b68e9dff94372c232f4"