Markdoc asset bleed, second try (#7185)

* Revert "revert: markdoc asset bleed (#7178)"

This reverts commit 57e65d247f67de61bcc3a585c2254feb61ed2e74.

* fix: missing result param on `renderUniqueStylesheet`

* test: bundled styles (fails!)

* fix: use `type: 'external'` for links

* fix: split Astro components from markdoc config

* test: style bleed (it fails...)

* chore: remove unused util

* fix: revert entry change

* Stop traversing the graph when you encounter a propagated asset

* chore: cleanup unused `entry` prop

* refactor: add isPropagatedAssetsMod check

* chore: remove unused import

* chore: changeset

* Normalize path using vite

* Update packages/integrations/markdoc/src/index.ts

Co-authored-by: Ben Holmes <hey@bholmes.dev>

---------

Co-authored-by: Matthew Phillips <matthew@skypack.dev>
Co-authored-by: bholmesdev <bholmesdev@gmail.com>
Co-authored-by: Matthew Phillips <matthew@matthewphillips.info>

1 files changed, 31 insertions, 0 deletions

diff --git a/packages/integrations/markdoc/src/utils.ts b/packages/integrations/markdoc/src/utils.ts
index ea5dda6db..ad964f56c 100644
--- a/packages/integrations/markdoc/src/utils.ts
+++ b/packages/integrations/markdoc/src/utils.ts
@@ -1,3 +1,5 @@
+import crypto from 'node:crypto';
+import path from 'node:path';
 import matter from 'gray-matter';
 import type { ErrorPayload as ViteErrorPayload } from 'vite';
 
@@ -96,3 +98,32 @@ export function isValidUrl(str: string): boolean {
 		return false;
 	}
 }
+
+/**
+ * Identifies Astro components with propagated assets
+ * @see 'packages/astro/src/content/consts.ts'
+ */
+export const PROPAGATED_ASSET_FLAG = 'astroPropagatedAssets';
+
+/**
+ * @see 'packages/astro/src/content/utils.ts'
+ */
+export function hasContentFlag(viteId: string, flag: string): boolean {
+	const flags = new URLSearchParams(viteId.split('?')[1] ?? '');
+	return flags.has(flag);
+}
+
+/**
+ * Create build hash for manual Rollup chunks.
+ * @see 'packages/astro/src/core/build/plugins/plugin-css.ts'
+ */
+export function createNameHash(baseId: string, hashIds: string[]): string {
+	const baseName = baseId ? path.parse(baseId).name : 'index';
+	const hash = crypto.createHash('sha256');
+	for (const id of hashIds) {
+		hash.update(id, 'utf-8');
+	}
+	const h = hash.digest('hex').slice(0, 8);
+	const proposedName = baseName + '.' + h;
+	return proposedName;
+}