Revert "Fixes duplicate head content (#995)" (#1001)

* Revert "Fixes duplicate head content (#995)"

This reverts commit 268a36f399.

* Changeset

.changeset/eighty-walls-count.md

@@ -0,0 +1,5 @@
+---
+'astro': patch
+---
+
+Reverts a change to head content that was breaking docs site

packages/astro/src/compiler/codegen/index.ts

@@ -662,7 +662,7 @@ async function compileHtml(enterNode: TemplateNode, state: CodegenState, compile
                   buffers[curr] += `h(__astro_slot_content, { name: ${attributes.slot} },`;
                   paren++;
                 }
-                buffers[curr] += `h("${name}", ${generateAttributes(attributes)},`;
+                buffers[curr] += `h("${name}", ${generateAttributes(attributes)}`;
                 paren++;
                 return;
               }
@@ -692,7 +692,7 @@ async function compileHtml(enterNode: TemplateNode, state: CodegenState, compile
                   buffers[curr] += `h(__astro_slot_content, { name: ${attributes.slot} },`;
                   paren++;
                 }
-                buffers[curr] += `h(${componentName}, ${generateAttributes(attributes)},`;
+                buffers[curr] += `h(${componentName}, ${generateAttributes(attributes)}`;
                 paren++;
                 return;
               } else if (!componentInfo && !isCustomElementTag(componentName)) {

packages/astro/src/compiler/index.ts

@@ -150,8 +150,8 @@ async function __render(props, ...children) {
       value: props,
       enumerable: true
     },
-    pageCSS: {
-      value: (props[__astroContext] && props[__astroContext].pageCSS) || [],
+    css: {
+      value: (props[__astroInternal] && props[__astroInternal].css) || [],
       enumerable: true
     },
     isPage: {
@@ -181,7 +181,6 @@ export async function __renderPage({request, children, props, css}) {
 
   Object.defineProperty(props, __astroContext, {
     value: {
-      pageCSS: css,
       request
     },
     writable: false,
@@ -190,6 +189,7 @@ export async function __renderPage({request, children, props, css}) {
 
   Object.defineProperty(props, __astroInternal, {
     value: {
+      css,
       isPage: true
     },
     writable: false,

packages/astro/src/compiler/transform/head.ts

@@ -73,7 +73,7 @@ export default function (opts: TransformOptions): Transformer {
             start: 0,
             end: 0,
             type: 'Expression',
-            codeChunks: ['Astro.pageCSS.map(css => (', '))'],
+            codeChunks: ['Astro.css.map(css => (', '))'],
             children: [
               {
                 type: 'Element',
@@ -162,15 +162,22 @@ export default function (opts: TransformOptions): Transformer {
         );
       }
 
-      if (eoh.foundHeadOrHtmlElement || eoh.foundHeadAndBodyContent) {
-        const topLevelFragment = {
+      const conditionalNode = {
+        start: 0,
+        end: 0,
+        type: 'Expression',
+        codeChunks: ['Astro.isPage ? (', ') : null'],
+        children: [
+          {
             start: 0,
             end: 0,
             type: 'Fragment',
             children,
+          },
+        ],
       };
-        eoh.append(topLevelFragment);
-      }
+
+      eoh.append(conditionalNode);
     },
   };
 }

packages/astro/src/compiler/transform/util/end-of-head.ts

@@ -1,44 +1,21 @@
 import type { TemplateNode } from '@astrojs/parser';
 
-const beforeHeadElements = new Set(['!doctype', 'html']);
-const validHeadElements = new Set(['title', 'meta', 'link', 'style', 'script', 'noscript', 'base']);
+const validHeadElements = new Set(['!doctype', 'title', 'meta', 'link', 'style', 'script', 'noscript', 'base']);
 
 export class EndOfHead {
-  private html: TemplateNode | null = null;
   private head: TemplateNode | null = null;
   private firstNonHead: TemplateNode | null = null;
   private parent: TemplateNode | null = null;
   private stack: TemplateNode[] = [];
 
-  public foundHeadElements = false;
-  public foundBodyElements = false;
   public append: (...node: TemplateNode[]) => void = () => void 0;
 
   get found(): boolean {
     return !!(this.head || this.firstNonHead);
   }
 
-  get foundHeadContent(): boolean {
-    return !!this.head || this.foundHeadElements;
-  }
-
-  get foundHeadAndBodyContent(): boolean {
-    return this.foundHeadContent && this.foundBodyElements;
-  }
-
-  get foundHeadOrHtmlElement(): boolean {
-    return !!(this.html || this.head);
-  }
-
   enter(node: TemplateNode) {
-    const name = node.name ? node.name.toLowerCase() : null;
-
     if (this.found) {
-      if (!validHeadElements.has(name)) {
-        if (node.type === 'Element') {
-          this.foundBodyElements = true;
-        }
-      }
       return;
     }
 
@@ -49,6 +26,8 @@ export class EndOfHead {
       return;
     }
 
+    const name = node.name.toLowerCase();
+
     if (name === 'head') {
       this.head = node;
       this.parent = this.stack[this.stack.length - 2];
@@ -56,24 +35,11 @@ export class EndOfHead {
       return;
     }
 
-    // Skip !doctype and html elements
-    if (beforeHeadElements.has(name)) {
-      if (name === 'html') {
-        this.html = node;
-      }
-      return;
-    }
-
     if (!validHeadElements.has(name)) {
-      if (node.type === 'Element') {
-        this.foundBodyElements = true;
-      }
       this.firstNonHead = node;
       this.parent = this.stack[this.stack.length - 2];
       this.append = this.prependToFirstNonHead;
       return;
-    } else {
-      this.foundHeadElements = true;
     }
   }
 

packages/astro/test/astro-doctype.test.js

@@ -1,13 +1,38 @@
+import { fileURLToPath } from 'url';
 import { suite } from 'uvu';
 import * as assert from 'uvu/assert';
-import { doc } from './test-utils.js';
-import { setup } from './helpers.js';
+import { loadConfig } from '#astro/config';
+import { createRuntime } from '#astro/runtime';
 
 const DType = suite('doctype');
 
-setup(DType, './fixtures/astro-doctype');
+let runtime, setupError;
 
-DType('Automatically prepends the standards mode doctype', async ({ runtime }) => {
+DType.before(async () => {
+  try {
+    const astroConfig = await loadConfig(fileURLToPath(new URL('./fixtures/astro-doctype', import.meta.url)));
+
+    const logging = {
+      level: 'error',
+      dest: process.stderr,
+    };
+
+    runtime = await createRuntime(astroConfig, { logging });
+  } catch (err) {
+    console.error(err);
+    setupError = err;
+  }
+});
+
+DType.after(async () => {
+  (await runtime) && runtime.shutdown();
+});
+
+DType('No errors creating a runtime', () => {
+  assert.equal(setupError, undefined);
+});
+
+DType('Automatically prepends the standards mode doctype', async () => {
   const result = await runtime.load('/prepend');
   assert.ok(!result.error, `build error: ${result.error}`);
 
@@ -15,7 +40,7 @@ DType('Automatically prepends the standards mode doctype', async ({ runtime }) =
   assert.ok(html.startsWith('<!doctype html>'), 'Doctype always included');
 });
 
-DType('No attributes added when doctype is provided by user', async ({ runtime }) => {
+DType('No attributes added when doctype is provided by user', async () => {
   const result = await runtime.load('/provided');
   assert.ok(!result.error, `build error: ${result.error}`);
 
@@ -23,7 +48,7 @@ DType('No attributes added when doctype is provided by user', async ({ runtime }
   assert.ok(html.startsWith('<!doctype html>'), 'Doctype always included');
 });
 
-DType.skip('Preserves user provided doctype', async ({ runtime }) => {
+DType.skip('Preserves user provided doctype', async () => {
   const result = await runtime.load('/preserve');
   assert.ok(!result.error, `build error: ${result.error}`);
 
@@ -31,7 +56,7 @@ DType.skip('Preserves user provided doctype', async ({ runtime }) => {
   assert.ok(html.startsWith('<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">'), 'Doctype included was preserved');
 });
 
-DType('User provided doctype is case insensitive', async ({ runtime }) => {
+DType('User provided doctype is case insensitive', async () => {
   const result = await runtime.load('/capital');
   assert.ok(!result.error, `build error: ${result.error}`);
 
@@ -40,23 +65,4 @@ DType('User provided doctype is case insensitive', async ({ runtime }) => {
   assert.not.ok(html.includes('</!DOCTYPE>'), 'There should not be a closing tag');
 });
 
-DType('Doctype can be provided in a layout', async ({ runtime }) => {
-  const result = await runtime.load('/in-layout');
-  assert.ok(!result.error, `build error: ${result.error}`);
-
-  const html = result.contents.toString('utf-8');
-  assert.ok(html.startsWith('<!doctype html>'), 'doctype is at the front');
-
-  const $ = doc(html);
-  assert.equal($('head link').length, 1, 'A link inside of the head');
-});
-
-DType('Doctype is added in a layout without one', async ({ runtime }) => {
-  const result = await runtime.load('/in-layout-no-doctype');
-  assert.ok(!result.error, `build error: ${result.error}`);
-
-  const html = result.contents.toString('utf-8');
-  assert.ok(html.startsWith('<!doctype html>'), 'doctype is at the front');
-});
-
 DType.run();

packages/astro/test/fixtures/astro-doctype/src/components/Meta.astro

@@ -1,5 +0,0 @@
----
-import SubMeta from './SubMeta.astro';
----
-<meta name="author" content="Astro Fan">
-<SubMeta />

packages/astro/test/fixtures/astro-doctype/src/components/SubMeta.astro

@@ -1 +0,0 @@
-<meta name="keywords" content="JavaScript,Astro">

packages/astro/test/fixtures/astro-doctype/src/layouts/WithDoctype.astro

@@ -1,14 +0,0 @@
----
-import '../styles/global.css';
-import Meta from '../components/Meta.astro';
----
-<!doctype html>
-<html lang="en">
-  <head>
-    <title>My App</title>
-    <Meta />
-  </head>
-  <body>
-
-  </body>
-</html>

packages/astro/test/fixtures/astro-doctype/src/layouts/WithoutDoctype.astro

@@ -1,11 +0,0 @@
----
-import '../styles/global.css'
----
-<html lang="en">
-  <head>
-    <title>My App</title>
-  </head>
-  <body>
-
-  </body>
-</html>

packages/astro/test/fixtures/astro-doctype/src/pages/in-layout-no-doctype.astro

@@ -1,4 +0,0 @@
----
-import WithoutDoctype from '../layouts/WithoutDoctype.astro';
----
-<WithoutDoctype />

packages/astro/test/fixtures/astro-doctype/src/pages/in-layout.astro

@@ -1,4 +0,0 @@
----
-import WithDoctype from '../layouts/WithDoctype.astro';
----
-<WithDoctype />

packages/astro/test/fixtures/astro-doctype/src/styles/global.css

@@ -1,3 +0,0 @@
-body {
-  background: green;
-}

packages/astro/test/fixtures/no-head-el/src/pages/index.astro

@@ -2,7 +2,6 @@
 import Something from '../components/Something.jsx';
 import Child from '../components/Child.astro';
 ---
-
 <title>My page</title>
 <style>
   .h1 {

packages/astro/test/fixtures/no-head-el/src/pages/no-elements.astro

@@ -0,0 +1,6 @@
+---
+import Something from '../components/Something.jsx';
+import Child from '../components/Child.astro';
+---
+<Something client:load />
+<Child />

packages/astro/test/no-head-el.test.js

@@ -25,4 +25,14 @@ NoHeadEl('Places style and scripts before the first non-head element', async ({
   assert.equal($('script[src="/_snowpack/hmr-client.js"]').length, 1, 'Only the hmr client for the page');
 });
 
+NoHeadEl('Injects HMR script even when there are no elements on the page', async ({ runtime }) => {
+  const result = await runtime.load('/no-elements');
+  assert.ok(!result.error, `build error: ${result.error}`);
+
+  const html = result.contents;
+  const $ = doc(html);
+
+  assert.equal($('script[src="/_snowpack/hmr-client.js"]').length, 1, 'Only the hmr client for the page');
+});
+
 NoHeadEl.run();