add hash to entrypoint

build.ts

@@ -1,6 +1,6 @@
 import { Glob, fileURLToPath, pathToFileURL } from "bun";
 import { unlink } from "node:fs/promises";
-import { basename, join } from "node:path";
+import { basename, join, relative } from "node:path";
 
 function escapeRegExp(string: string) {
   return string.replace(/[.*+?^${}()|[\]\\]/g, "\\$&"); // $& means the whole matched string
@@ -38,11 +38,12 @@ export async function build({
   for await (const path of glob(absPageDir)) {
     entrypoints.push(path);
   }
+  const outdir = join(baseDir, buildDir);
   const result = await Bun.build({
     entrypoints,
     sourcemap,
     target: "browser",
-    outdir: join(baseDir, buildDir),
+    outdir,
     splitting: true,
     minify,
     define: {
@@ -99,6 +100,17 @@ export async function build({
         await unlink(path);
       }
     }
+    const hashed: Record<string, string> = {};
+    for (const output of result.outputs) {
+      if (output.kind === "entry-point" && output.hash) {
+        const path = relative(outdir, output.path);
+        hashed[`/${path}`] = output.hash;
+      }
+    }
+    Bun.write(
+      join(outdir, ".meta.json"),
+      JSON.stringify({ version: 1, hashed })
+    );
   }
   return result;
 }

example/index.ts

@@ -8,7 +8,11 @@ Bun.serve({
     const response = await router.serve(request, {
       Shell: ExampleShell,
       bootstrapModules: ["/hydrate.js"],
-      noStreaming: true
+      noStreaming: true,
+      staticHeaders: {
+        "x-powered-by": "bun",
+        "cache-control": "max-age=14400, immutable",
+      },
     });
     if (response) return response;
     return new Response("Not found", {

index.tsx

@@ -9,6 +9,7 @@ export class StaticRouters {
   readonly server: FileSystemRouter;
   readonly client: FileSystemRouter;
   readonly #routes_dump: string;
+  readonly #hashed: Record<string, string>;
 
   constructor(
     public baseDir: string,
@@ -23,12 +24,14 @@ export class StaticRouters {
       dir: join(baseDir, buildDir, pageDir),
       style: "nextjs",
     });
+    this.#hashed = require(join(baseDir, buildDir, ".meta.json")).hashed;
     this.#routes_dump = NJSON.stringify(
       Object.fromEntries(
-        Object.entries(this.client.routes).map(([path, filePath]) => [
-          path,
-          "/" + relative(join(baseDir, buildDir), filePath),
-        ])
+        Object.entries(this.client.routes).map(([path, filePath]) => {
+          let target = "/" + relative(join(baseDir, buildDir), filePath);
+          if (this.#hashed[target]) target += `?${this.#hashed[target]}`;
+          return [path, target];
+        })
       ),
       { omitStack: true }
     );
@@ -46,21 +49,24 @@ export class StaticRouters {
         console.error(error, errorInfo);
       },
       noStreaming,
+      staticHeaders,
     }: {
       Shell: React.ComponentType<{ children: React.ReactElement }>;
       preloadScript?: string;
       bootstrapModules?: string[];
       context?: T;
       onError?(error: unknown, errorInfo: React.ErrorInfo): string | void;
       noStreaming?: boolean;
+      staticHeaders?: HeadersInit;
     }
   ): Promise<Response | null> {
     const { pathname, search } = new URL(request.url);
     const staticResponse = await serveFromDir({
       directory: this.buildDir,
       path: pathname,
     });
-    if (staticResponse) return new Response(staticResponse);
+    if (staticResponse)
+      return new Response(staticResponse, { headers: staticHeaders });
     const serverSide = this.server.match(request);
     if (!serverSide) return null;
     const clientSide = this.client.match(request);
@@ -106,7 +112,11 @@ export class StaticRouters {
         ]
           .filter(Boolean)
           .join(";"),
-        bootstrapModules,
+        bootstrapModules: bootstrapModules?.map((name) => {
+          const hash = this.#hashed[name];
+          if (hash) return `${name}?${hash}`;
+          return name;
+        }),
         onError,
       }
     );

package.json

@@ -22,8 +22,8 @@
   },
   "peerDependencies": {
     "typescript": "^5.0.0",
-    "react": "*",
-    "react-dom": "*"
+    "react": "^19.0.0-rc-cc1ec60d0d-20240607",
+    "react-dom": "^19.0.0-rc-cc1ec60d0d-20240607"
   },
   "dependencies": {
     "next-json": "^0.2.3"