feat: hybrid output (#6991)

* update config schema

* adapt default route `prerender` value

* adapt error message for hybrid output

* core hybrid output support

* add JSDocs for hybrid output

* dev server hybrid output support

* defer hybrid output check

* update endpoint request warning

* support `output=hybrid` in integrations

* put constant variable out of for loop

* revert: reapply back ssr plugin in ssr mode

* change `prerender` option default

* apply `prerender` by default in hybrid mode

* simplfy conditional

* update config schema

* add `isHybridOutput` helper

* more readable prerender condition

* set default prerender value if no export is found

* only add `pagesVirtualModuleId` ro rollup input in `output=static`

* don't export vite plugin

* remove unneeded check

* don't prerender when it shouldn't

* extract fallback `prerender` meta

Extract the fallback `prerender` module meta out of the `scan` function.
It shouldn't be its responsibility to handle that

* pass missing argument to function

* test: update cloudflare integration tests

* test: update tests of vercel integration

* test: update tests of node integration

* test: update tests of netlify func integration

* test: update tests of netlify edge integration

* throw when `hybrid` mode is malconfigured

* update node integraiton `output` warning

* test(WIP): skip node prerendering tests for now

* remove non-existant import

* test: bring back prerendering tests

* remove outdated comments

* test: refactor test to support windows paths

* remove outdated comments

* apply sarah review

Co-authored-by: Sarah Rainsberger <sarah@rainsberger.ca>

* docs: `experiment.hybridOutput` jsodcs

* test: prevent import from being cached

* refactor: extract hybrid output check to  function

* add `hybrid` to output warning in adapter hooks

* chore: changeset

* add `.js` extension to import

* chore: use spaces instead of tabs for gh formating

* resolve merge conflict

* chore: move test to another file for consitency

---------

Co-authored-by: Sarah Rainsberger <sarah@rainsberger.ca>
Co-authored-by: Matthew Phillips <matthew@skypack.dev>

1 files changed, 71 insertions, 10 deletions

diff --git a/packages/integrations/netlify/test/edge-functions/prerender.test.ts b/packages/integrations/netlify/test/edge-functions/prerender.test.ts
index 5d858ef73..4d4dfc9c6 100644
--- a/packages/integrations/netlify/test/edge-functions/prerender.test.ts
+++ b/packages/integrations/netlify/test/edge-functions/prerender.test.ts
@@ -1,15 +1,76 @@
-import { runBuild } from './test-utils.ts';
-import { assertEquals } from './deps.ts';
+import { loadFixture } from './test-utils.ts';
+import { assertEquals, assertExists, cheerio, fs } from './deps.ts';
 
 Deno.test({
 	name: 'Prerender',
-	async fn() {
-		let close = await runBuild('./fixtures/prerender/');
-		const { default: handler } = await import(
-			'./fixtures/prerender/.netlify/edge-functions/entry.js'
-		);
-		const response = await handler(new Request('http://example.com/index.html'));
-		assertEquals(response, undefined, 'No response because this is an asset');
-		await close();
+	async fn(t) {
+		const environmentVariables = {
+			PRERENDER: 'true',
+		};
+		const fixture = loadFixture('./fixtures/prerender/', environmentVariables);
+		await fixture.runBuild();
+
+		await t.step('Handler can process requests to non-existing routes', async () => {
+			const { default: handler } = await import(
+				'./fixtures/prerender/.netlify/edge-functions/entry.js'
+			);
+			assertExists(handler);
+			const response = await handler(new Request('http://example.com/index.html'));
+			assertEquals(response, undefined, "No response because this route doesn't exist");
+		});
+
+		await t.step('Prerendered route exists', async () => {
+			let content: string | null = null;
+			try {
+				const path = new URL('./fixtures/prerender/dist/index.html', import.meta.url);
+				content = Deno.readTextFileSync(path);
+			} catch (e) {}
+			assertExists(content);
+			const $ = cheerio.load(content);
+			assertEquals($('h1').text(), 'testing');
+		});
+
+		Deno.env.delete('PRERENDER');
+		await fixture.cleanup();
+	},
+});
+
+Deno.test({
+	name: 'Hybrid rendering',
+	async fn(t) {
+		const environmentVariables = {
+			PRERENDER: 'false',
+		};
+		const fixture = loadFixture('./fixtures/prerender/', environmentVariables);
+		await fixture.runBuild();
+
+		const stop = await fixture.runApp('./fixtures/prerender/prod.js');
+		await t.step('Can fetch server route', async () => {
+			const response = await fetch('http://127.0.0.1:8085/');
+			assertEquals(response.status, 200);
+
+			const html = await response.text();
+			const $ = cheerio.load(html);
+			assertEquals($('h1').text(), 'testing');
+		});
+		stop();
+
+		await t.step('Handler can process requests to non-existing routes', async () => {
+			const { default: handler } = await import(
+				'./fixtures/prerender/.netlify/edge-functions/entry.js'
+			);
+			const response = await handler(new Request('http://example.com/index.html'));
+			assertEquals(response, undefined, "No response because this route doesn't exist");
+		});
+
+		await t.step('Has no prerendered route', async () => {
+			let prerenderedRouteExists = false;
+			try {
+				const path = new URL('./fixtures/prerender/dist/index.html', import.meta.url);
+				prerenderedRouteExists = fs.existsSync(path);
+			} catch (e) {}
+			assertEquals(prerenderedRouteExists, false);
+		});
+		await fixture.cleanup();
 	},
 });