use local excalidraw

packages/lexical-playground/vite.config.ts

@@ -77,7 +77,7 @@ export default defineConfig(({command}) => {
         presets: [['@babel/preset-react', {runtime: 'automatic'}]],
       }),
       react(),
-      ...viteCopyExcalidrawAssets('dev'),
+      ...viteCopyExcalidrawAssets(),
       viteCopyEsm(),
       commonjs({
         // This is required for React 19 (at least 19.0.0-beta-26f2496093-20240514)

packages/lexical-playground/vite.prod.config.ts

@@ -70,7 +70,7 @@ export default defineConfig({
       presets: [['@babel/preset-react', {runtime: 'automatic'}]],
     }),
     react(),
-    ...viteCopyExcalidrawAssets('prod'),
+    ...viteCopyExcalidrawAssets(),
     viteCopyEsm(),
     commonjs({
       // This is required for React 19 (at least 19.0.0-beta-26f2496093-20240514)

packages/lexical-playground/viteCopyExcalidrawAssets.ts

@@ -0,0 +1,53 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ */
+import type {Plugin} from 'vite';
+
+import {createRequire} from 'node:module';
+import * as path from 'node:path';
+import {Target, viteStaticCopy} from 'vite-plugin-static-copy';
+
+const require = createRequire(import.meta.url);
+
+export default function viteCopyExcalidrawAssets(): Plugin[] {
+  const targets: Target[] = [
+    'excalidraw-assets',
+    'excalidraw-assets-dev',
+  ].flatMap((assetDir) => {
+    const srcDir = path.join(
+      require.resolve('@excalidraw/excalidraw'),
+      '..',
+      'dist',
+      assetDir,
+    );
+    return [
+      {
+        dest: `${assetDir}/`,
+        src: [path.join(srcDir, '*.js'), path.join(srcDir, '*.woff2')],
+      },
+      {
+        dest: `${assetDir}/locales/`,
+        src: [path.join(srcDir, 'locales', '*.js')],
+      },
+    ];
+  });
+  return [
+    {
+      config() {
+        return {
+          define: {
+            'process.env.EXCALIDRAW_ASSET_PATH': JSON.stringify('/'),
+          },
+        };
+      },
+      name: 'viteCopyExcalidrawAssets',
+    },
+    ...viteStaticCopy({
+      targets,
+    }),
+  ];
+}