JavaScript-Resource
diff --git a/‎gulpfile.js‎
Lines changed: 32 additions & 1 deletion b/‎gulpfile.js‎
Lines changed: 32 additions & 1 deletion
@@ -1045,6 +1045,37 @@ gulp.task('!bundle.copy', function() {
                 gulp.src('dist/js/bundle/**').pipe(gulp.dest('dist/js/dev/es5/bundle')));
 });
 
+gulp.task('!bundles.js.checksize', function() {
+  var gzip = require('gulp-gzip');
+  var path = require('path');
+
+  return merge2(gulp.src('dist/js/bundle/**').on('data', checkFileSizeFactory('uncompressed')),
+                gulp.src('dist/js/bundle/**')
+                    .pipe(gzip({gzipOptions: {level: 1}}))  // code.angular.js
+                    .on('data', checkFileSizeFactory('gzip level=1')),
+                gulp.src('dist/js/bundle/**')
+                    .pipe(gzip({gzipOptions: {level: 2}}))  // github pages, most common
+                    .on('data', checkFileSizeFactory('gzip level=2', true)),
+                gulp.src('dist/js/bundle/**')
+                    .pipe(gzip({gzipOptions: {level: 6}}))  // default gzip level
+                    .on('data', checkFileSizeFactory('gzip level=6')),
+                gulp.src('dist/js/bundle/**')
+                    .pipe(gzip({gzipOptions: {level: 9}}))  // max gzip level
+                    .on('data', checkFileSizeFactory('gzip level=9')));
+
+  function checkFileSizeFactory(compressionLevel, printToConsole) {
+    return function checkFileSize(file) {
+      if (file.isNull()) return;
+      var filePath =
+          path.relative(path.join('dist', 'js', 'bundle'), file.path).replace('\.gz', '');
+      analytics.bundleSize(filePath, file.contents.length, compressionLevel);
+      if (printToConsole) {
+        console.log(`  ${filePath} => ${file.contents.length} bytes (${compressionLevel})`)
+      }
+    }
+  }
+});
+
 gulp.task('bundles.js',
           [
             '!bundle.js.prod.deps',
@@ -1054,7 +1085,7 @@ gulp.task('bundles.js',
             '!bundle.js.sfx.dev.deps',
             '!bundle.testing'
           ],
-          function(done) { runSequence('!bundle.copy', done); });
+          function(done) { runSequence('!bundle.copy', '!bundles.js.checksize', done); });
 
 gulp.task('build.js',
           ['build.js.dev', 'build.js.prod', 'build.js.cjs', 'bundles.js', 'benchpress.bundle']);