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))

package.json

@@ -5,11 +5,20 @@
   "repository": "https://github.com/jellyfin/jellyfin-web",
   "license": "GPL-2.0-or-later",
   "devDependencies": {
+    "@babel/core": "^7.8.6",
+    "@babel/preset-env": "^7.8.6",
     "clean-webpack-plugin": "^3.0.0",
     "copy-webpack-plugin": "^5.1.1",
     "css-loader": "^3.4.2",
+    "del": "^5.1.0",
     "eslint": "^6.8.0",
     "file-loader": "^5.0.2",
+    "gulp": "^4.0.2",
+    "gulp-babel": "^8.0.0",
+    "gulp-cssnano": "^2.1.3",
+    "gulp-htmlmin": "^5.0.1",
+    "gulp-sourcemaps": "^2.6.5",
+    "gulp-terser": "^1.2.0",
     "html-webpack-plugin": "^3.2.0",
     "style-loader": "^1.1.3",
     "stylelint": "^13.1.0",