MDX support (#3706)

* feat: first pass at MDX support

* fix: move built-in JSX renderer to come first

* chore: remove jsx example

* chore: update lockfile

* chore: cleanup example

* fix: missing deps

* refactor: move component render logic to `renderPage`

* chore: update HMR script

* chore: update MDX example

* refactor: prefer unshit

* refactor: remove TODO comment

* fix: remove duplicate identifier

* refactor: cleanup mdx entrypoint

* fix: better html handling

* fix: add tsconfig to mdx package

* chore: update lockfile

* fix: do not sort plugins unless mdx is enabled

* chore: update compiler

* fix(hmr): maybe render head for non-Astro pages

* fix: set initial pageExtensions

* refactor: cleanup addPageExtension

* refactor: remove addPageExtensions from types

* refactor: expose HookParameters type

* fix: only default to astro for MDX

* test: pick up jsx support in test fixtures

* refactor: simplify mdx entrypoint

* test: add basic MDX tests

* test(e2e): add mdx + framework tests

* chore: update lockfile

* test(e2e): fix preact mdx e2e test

* fix(mdx): disable .md support

* test(e2e): fix vue-component test missing mdx

* test(e2e): fix solid component needing import

* fix: allow `client:only="solid"` as an alias to `solid-js`

* chore: move to with-mdx example

* chore: update MDX readme

* chore: update example readme

* chore: bump astro version

* chore: update lockfile

* Update mod.d.ts

* feat: support `export const components` in MDX pages

* chore: update mdx example

* fix: update jsx-runtime with better slot support

* refactor: remove object style support

* chore: cleanup package exports

* chore: add todo comment

* refactor: improve isPage function, move to utils

* refactor: dry up manual HMR updates

* chore: add dev tests for MDX

* chore: prefer set to array

* chore: add changesets

* fix(hmr): flip public/private route

Co-authored-by: Nate Moore <nate@astro.build>

1 files changed, 63 insertions, 0 deletions

diff --git a/packages/integrations/mdx/test/mdx-component.test.js b/packages/integrations/mdx/test/mdx-component.test.js
new file mode 100644
index 000000000..462e86e7b
--- /dev/null
+++ b/packages/integrations/mdx/test/mdx-component.test.js
@@ -0,0 +1,63 @@
+import mdx from '@astrojs/mdx';
+
+import { expect } from 'chai';
+import { parseHTML } from 'linkedom'
+import { loadFixture } from '../../../astro/test/test-utils.js';
+
+describe('MDX Component', () => {
+	let fixture;
+	
+	before(async () => {
+		fixture = await loadFixture({ 
+			root: new URL('./fixtures/mdx-component/', import.meta.url),
+			integrations: [
+				mdx()
+			]
+		});
+	});
+
+	describe('build', () => {
+		before(async () => {
+			await fixture.build();
+		});
+
+
+		it('works', async () => {
+			const html = await fixture.readFile('/index.html');
+			const { document } = parseHTML(html);
+			
+			const h1 = document.querySelector('h1');
+			const foo = document.querySelector('#foo');
+
+			expect(h1.textContent).to.equal('Hello component!');
+			expect(foo.textContent).to.equal('bar');
+		});
+	})
+
+	describe('dev', () => {
+		let devServer;
+		
+		before(async () => {
+			devServer = await fixture.startDevServer();
+		});
+
+		after(async () => {
+			await devServer.stop();
+		});
+
+		it('works', async () => {
+			const res = await fixture.fetch('/');
+
+			expect(res.status).to.equal(200);
+
+			const html = await res.text();
+			const { document } = parseHTML(html);
+		
+			const h1 = document.querySelector('h1');
+			const foo = document.querySelector('#foo');
+
+			expect(h1.textContent).to.equal('Hello component!');
+			expect(foo.textContent).to.equal('bar');
+		});
+	})
+})