feat: added sitemap & fixed robot txt (#8699)

excalidraw-app/package.json

@@ -26,17 +26,17 @@
     "node": ">=18.0.0"
   },
   "dependencies": {
+    "@excalidraw/random-username": "1.0.0",
+    "@sentry/browser": "6.2.5",
+    "@sentry/integrations": "6.2.5",
     "firebase": "8.3.3",
+    "i18next-browser-languagedetector": "6.1.4",
     "idb-keyval": "6.0.3",
     "jotai": "1.13.1",
     "react": "18.2.0",
     "react-dom": "18.2.0",
-    "vite-plugin-html": "3.2.2",
-    "@excalidraw/random-username": "1.0.0",
-    "@sentry/browser": "6.2.5",
-    "@sentry/integrations": "6.2.5",
-    "i18next-browser-languagedetector": "6.1.4",
-    "socket.io-client": "4.7.2"
+    "socket.io-client": "4.7.2",
+    "vite-plugin-html": "3.2.2"
   },
   "prettier": "@excalidraw/prettier-config",
   "scripts": {
@@ -49,5 +49,8 @@
     "start:production": "yarn build && yarn serve",
     "serve": "npx http-server build -a localhost -p 5001 -o",
     "build:preview": "yarn build && vite preview --port 5000"
+  },
+  "devDependencies": {
+    "vite-plugin-sitemap": "0.7.1"
   }
 }

excalidraw-app/vite.config.mts

@@ -5,6 +5,7 @@ import { ViteEjsPlugin } from "vite-plugin-ejs";
 import { VitePWA } from "vite-plugin-pwa";
 import checker from "vite-plugin-checker";
 import { createHtmlPlugin } from "vite-plugin-html";
+import Sitemap from "vite-plugin-sitemap";
 import { woff2BrowserPlugin } from "../scripts/woff2/woff2-vite-plugins";
 
 // To load .env.local variables
@@ -52,6 +53,13 @@ export default defineConfig({
     assetsInlineLimit: 0,
   },
   plugins: [
+    Sitemap({
+      hostname: "https://excalidraw.com",
+      outDir: "build",
+      changefreq: "monthly",
+      // its static in public folder
+      generateRobotsTxt: false,
+    }),
     woff2BrowserPlugin(),
     react(),
     checker({
@@ -75,14 +83,19 @@ export default defineConfig({
       },
 
       workbox: {
-        // don't precache fonts, locales and separate chunks 
-        globIgnores: ["fonts.css", "**/locales/**", "service-worker.js", "**/*.chunk-*.js"],
+        // don't precache fonts, locales and separate chunks
+        globIgnores: [
+          "fonts.css",
+          "**/locales/**",
+          "service-worker.js",
+          "**/*.chunk-*.js",
+        ],
         runtimeCaching: [
           {
             urlPattern: new RegExp(".+.woff2"),
-            handler: 'CacheFirst',
+            handler: "CacheFirst",
             options: {
-              cacheName: 'fonts',
+              cacheName: "fonts",
               expiration: {
                 maxEntries: 1000,
                 maxAgeSeconds: 60 * 60 * 24 * 90, // 90 days