Add html minifier

Author: firefoxic

gulpfile.js

@@ -1,6 +1,7 @@
 import gulp from 'gulp';
 import plumber from 'gulp-plumber';
 import { nunjucksCompile } from 'gulp-nunjucks';
+import htmlmin from 'gulp-htmlmin';
 import * as dartSass from 'sass';
 import gulpSass from 'gulp-sass';
 import postcss from 'gulp-postcss';
@@ -25,6 +26,7 @@ let isDevelopment = true;
 export function processMarkup () {
   return src(`${PATH_TO_SOURCE}**/*.html`)
     .pipe(nunjucksCompile())
+		.pipe(htmlmin({ collapseWhitespace: !isDevelopment }))
     .pipe(dest(PATH_TO_DIST))
     .pipe(server.stream());
 }

package-lock.json

@@ -12,6 +12,7 @@
     "eslint-config-htmlacademy": "10.0.1",
     "gulp": "4.0.2",
     "gulp-html-bemlinter": "2.1.4",
+    "gulp-htmlmin": "5.0.1",
     "gulp-nunjucks": "6.0.0",
     "gulp-plumber": "1.2.1",
     "gulp-postcss": "9.0.1",