Deno adapter (#2934)

* Bundle everything, commit 1

* Get everything working

* Remove dependency on readable-stream

* Adds a changeset

* Fix ts errors

* Use the node logger in tests

* Callback the logger when done writing

* Fix test helper to await the callback

* Use serialize-javascript again

* Remove dead code

* Rename hook

* Oops

3 files changed, 89 insertions, 0 deletions

diff --git a/packages/integrations/deno/src/index.ts b/packages/integrations/deno/src/index.ts
new file mode 100644
index 000000000..c6f6207a5
--- /dev/null
+++ b/packages/integrations/deno/src/index.ts
@@ -0,0 +1,33 @@
+import type { AstroAdapter, AstroIntegration } from 'astro';
+
+interface Options {
+	port?: number;
+	hostname?: string;
+}
+
+export function getAdapter(args?: Options): AstroAdapter {
+	return {
+		name: '@astrojs/deno',
+		serverEntrypoint: '@astrojs/deno/server.js',
+		args: args ?? {},
+		exports: ['stop', 'handle']
+	};
+}
+
+export default function createIntegration(args?: Options): AstroIntegration {
+	return {
+		name: '@astrojs/deno',
+		hooks: {
+			'astro:config:done': ({ setAdapter }) => {
+				setAdapter(getAdapter(args));
+			},
+			'astro:build:setup': ({ vite, target }) => {
+				if(target === 'server') {
+					vite.ssr = {
+						noExternal: true
+					};
+				}
+			}
+		},
+	};
+}
diff --git a/packages/integrations/deno/src/server.ts b/packages/integrations/deno/src/server.ts
new file mode 100644
index 000000000..8e7ecf17d
--- /dev/null
+++ b/packages/integrations/deno/src/server.ts
@@ -0,0 +1,51 @@
+import './shim.js';
+import type { SSRManifest } from 'astro';
+import { App } from 'astro/app';
+// @ts-ignore
+import { Server } from "https://deno.land/std@0.132.0/http/server.ts";
+
+interface Options {
+	port?: number;
+	hostname?: string;
+	start?: boolean;
+}
+
+let _server: Server | undefined = undefined;
+let _startPromise: Promise<void> | undefined = undefined;
+
+export function start(manifest: SSRManifest, options: Options) {
+	if(options.start === false) {
+		return;
+	}
+
+	const app = new App(manifest);
+
+	const handler = async (request: Request) => {
+		const response = await app.render(request);
+		return response;
+	};
+
+	_server = new Server({
+    port: options.port ?? 8085,
+    hostname: options.hostname ?? "0.0.0.0",
+    handler,
+    //onError: options.onError,
+  });
+
+  _startPromise = _server.listenAndServe();
+}
+
+export function createExports(manifest: SSRManifest) {
+	const app = new App(manifest);
+	return {
+		async stop() {
+			if(_server) {
+			 _server.close();
+			}
+			await Promise.resolve(_startPromise);
+		},
+		async handle(request: Request) {
+			return app.render(request);
+		}
+	}
+}
diff --git a/packages/integrations/deno/src/shim.ts b/packages/integrations/deno/src/shim.ts
new file mode 100644
index 000000000..11c1c912b
--- /dev/null
+++ b/packages/integrations/deno/src/shim.ts
@@ -0,0 +1,5 @@
+
+(globalThis as any).process = {
+	argv: [],
+	env: {}
+};