create commonjs bundle with adapter-node, since esm output has issues

.changeset/fast-crews-pay.md

@@ -0,0 +1,5 @@
+---
+'@sveltejs/adapter-node': patch
+---
+
+Create CommonJS bundle with adapter-node

packages/adapter-node/ambient.d.ts

@@ -1,16 +1,16 @@
-declare module 'ENV' {
+declare module '0ENV' {
 	export function env(key: string, fallback?: any): string;
 }
 
-declare module 'HANDLER' {
+declare module '0HANDLER' {
 	export const handler: import('polka').Middleware;
 }
 
-declare module 'MANIFEST' {
+declare module '0MANIFEST' {
 	import { SSRManifest } from '@sveltejs/kit';
 	export const manifest: SSRManifest;
 }
 
-declare module 'SERVER' {
+declare module '0SERVER' {
 	export { Server } from '@sveltejs/kit';
 }

packages/adapter-node/index.js

@@ -55,21 +55,21 @@ export default function (opts = {}) {
 				target: 'es2022',
 				entryPoints: [`${tmp}/index.js`, `${tmp}/manifest.js`],
 				outdir: `${out}/server`,
-				splitting: true,
-				format: 'esm',
 				bundle: true,
 				external: [...Object.keys(pkg.dependencies || {})]
 			});
 
 			builder.copy(files, out, {
 				replace: {
-					ENV: './env.js',
-					HANDLER: './handler.js',
-					MANIFEST: './server/manifest.js',
-					SERVER: `./server/index.js`,
+					'0ENV': './env.js',
+					'0HANDLER': './handler.js',
+					'0MANIFEST': './server/manifest.js',
+					'0SERVER': `./server/index.js`,
 					ENV_PREFIX: JSON.stringify(envPrefix)
 				}
 			});
+
+			writeFileSync(`${out}/package.json`, JSON.stringify({ type: 'commonjs' }));
 		}
 	};
 }

packages/adapter-node/rollup.config.js

@@ -8,7 +8,7 @@ export default [
 		input: 'src/index.js',
 		output: {
 			file: 'files/index.js',
-			format: 'esm'
+			format: 'cjs'
 		},
 		plugins: [nodeResolve(), commonjs(), json()],
 		external: ['ENV', 'HANDLER', ...builtinModules]
@@ -17,7 +17,7 @@ export default [
 		input: 'src/env.js',
 		output: {
 			file: 'files/env.js',
-			format: 'esm'
+			format: 'cjs'
 		},
 		plugins: [nodeResolve(), commonjs(), json()],
 		external: ['HANDLER', ...builtinModules]
@@ -26,7 +26,7 @@ export default [
 		input: 'src/handler.js',
 		output: {
 			file: 'files/handler.js',
-			format: 'esm',
+			format: 'cjs',
 			inlineDynamicImports: true
 		},
 		plugins: [nodeResolve(), commonjs(), json()],

packages/adapter-node/src/handler.js

@@ -4,14 +4,15 @@ import path from 'path';
 import sirv from 'sirv';
 import { fileURLToPath } from 'url';
 import { getRequest, setResponse } from '@sveltejs/kit/node';
-import { Server } from 'SERVER';
-import { manifest } from 'MANIFEST';
-import { env } from 'ENV';
+import { Server } from '0SERVER';
+import { manifest } from '0MANIFEST';
+import { env } from '0ENV';
 
 /* global ENV_PREFIX */
 
 const server = new Server(manifest);
-await server.init({ env: process.env });
+const ready = server.init({ env: process.env });
+
 const origin = env('ORIGIN', undefined);
 const xff_depth = parseInt(env('XFF_DEPTH', '1'));
 const address_header = env('ADDRESS_HEADER', '').toLowerCase();
@@ -48,6 +49,8 @@ function serve(path, client = false) {
 const ssr = async (req, res) => {
 	let request;
 
+	await ready;
+
 	try {
 		request = await getRequest({
 			base: origin || get_origin(req.headers),

packages/adapter-node/src/index.js

@@ -1,5 +1,5 @@
-import { handler } from 'HANDLER';
-import { env } from 'ENV';
+import { handler } from '0HANDLER';
+import { env } from '0ENV';
 import polka from 'polka';
 
 export const path = env('SOCKET_PATH', false);