Improve build experience with regards to Rust Wasm components

README.md

@@ -113,9 +113,10 @@ Install [Rust](https://www.rust-lang.org/tools/install) if it's not already inst
 Next, build Spark by running:
 ```
 npm install
+npm run build:wasm
 npm run build
 ```
-This will first build the Rust Wasm component (can be invoked via `npm run build:wasm`), then Spark itself (`npm run build`).
+This will first build the Rust Wasm component (`npm run build:wasm`), then Spark itself (`npm run build`).
 
 The examples fetch assets from a remote URL. This step is optional, but offline development and faster loading times are possible if you download and cache the assets files locally with the following command:
 ```
@@ -136,6 +137,7 @@ First try cleaning all the build files and re-building everything:
 ```
 npm run clean
 npm install
+npm run build:wasm
 npm run build
 ```
 

biome.json

@@ -12,11 +12,7 @@
       "examples/assets/",
       "examples/showcase/hello-gsplat",
       "examples/js",
-      "rust/target",
-      "rust/javascript",
-      "rust/spark-worker-rs/pkg",
-      "rust/spark-rs/pkg",
-      "src/vrButton.ts",
+      "rust",
       "site",
       "site-repo",
       "docs",

package.json

@@ -32,7 +32,6 @@
     "lint": "biome check .",
     "lint:fix": "biome check . --fix",
     "lint:summary": "biome check --reporter=summary",
-    "prepare": "npm run build:wasm",
     "site:build:relativeurls": "npm run build && npm run site:clean && node scripts/copy-site-files.js && mkdocs build && node scripts/rename-assets-to-static.js && node scripts/replace-urls.js",
     "site:build": "npm run build && npm run site:clean && node scripts/copy-site-files.js && mkdocs build && node scripts/rename-assets-to-static.js",
     "site:clean": "node scripts/clean-site-files.js && node scripts/clean-site.js",

vite.config.ts

@@ -49,6 +49,26 @@ function fixWasmDataUrl(): Plugin {
   };
 }
 
+const sparkRsDirectory = "rust/spark-rs/pkg";
+const sparkWorkerRsDirectory = "rust/spark-worker-rs/pkg";
+if (
+  ![sparkRsDirectory, sparkWorkerRsDirectory].every((dir) => fs.existsSync(dir))
+) {
+  console.error(
+    "\x1b[31m************************************************************************\x1b[0m",
+  );
+  console.error(
+    "\x1b[31m Rust Wasm components not found, make sure to build them first.\x1b[0m",
+  );
+  console.error(
+    "\x1b[31m Install Rust and run:\x1b[1m npm run build:wasm\x1b[0m",
+  );
+  console.error(
+    "\x1b[31m************************************************************************\x1b[0m",
+  );
+  process.exit(1);
+}
+
 const assetsDirectory = "examples/assets";
 const localAssetsDirectoryExist = fs.existsSync(assetsDirectory);
 if (!localAssetsDirectoryExist) {