Add basic Gulp config

gulpfile.js

@@ -0,0 +1,44 @@
+"use strict";
+
+const { src, dest, series, parallel } = require('gulp');
+const del = require('del');
+const babel = require("gulp-babel");
+const terser = require('gulp-terser');
+const cssnano = require('gulp-cssnano');
+const htmlmin = require('gulp-htmlmin');
+const sourcemaps = require('gulp-sourcemaps');
+
+// Clean assets
+function clean() {
+    return del(["dist/"]);
+}
+
+function javascript() {
+    return src("src/**/*.js", {base: './src/'})
+    .pipe(sourcemaps.init({loadMaps: true}))
+    .pipe(babel({
+        presets: ['@babel/preset-env']
+    }))
+    .pipe(terser({
+        keep_fnames: true,
+        mangle: false
+    }))
+    .pipe(sourcemaps.write('.'))
+    .pipe(dest("dist/"));
+}
+
+function css() {
+    return src("src/**/*.css", {base: './src/'})
+    .pipe(sourcemaps.init({loadMaps: true}))
+    .pipe(cssnano())
+    .pipe(sourcemaps.write('.'))
+    .pipe(dest("dist/"));
+}
+
+function html() {
+    return src("src/**/*.html", {base: './src/'})
+    .pipe(htmlmin({ collapseWhitespace: true }))
+    .pipe(dest("dist/"));
+}
+
+exports.default = series(clean, parallel(javascript, css, html))