feat(algolia): hash content for lockfile to trigger reindexing on content change (#660)

Author: charlypoly

.changeset/rude-eagles-roll.md

@@ -0,0 +1,5 @@
+---
+"@guild-docs/algolia": patch
+---
+
+feat(algolia): hash content for lockfile to trigger reindexing on content change

packages/algolia/src/index.ts

@@ -13,6 +13,7 @@ import removeMarkdown from 'remove-markdown';
 import algoliasearch from 'algoliasearch';
 import matter from 'gray-matter';
 import glob from 'glob';
+import crypto from 'node:crypto'
 
 import type { AlgoliaRecord, AlgoliaSearchItemTOC, AlgoliaRecordSource, IRoutes } from './types';
 
@@ -392,14 +393,15 @@ export const indexToAlgolia = async ({
 
   const recordsAsString = JSON.stringify(
     sortBy(objects, 'objectID'),
-    (key, value) => (key === 'content' ? '-' : value),
+    (key, value) => (key === 'content' ? crypto.createHash('md5').update(value).digest('hex') : value),
     2
   );
 
   const lockFileExists = existsSync(lockfilePath);
   const lockfileContent = JSON.stringify(
+    // save space but still keep track of content changes
     sortBy(JSON.parse(lockFileExists ? readFileSync(lockfilePath, 'utf-8') : '[]'), 'objectID'),
-    (key, value) => (key === 'content' ? '-' : value),
+    null,
     2
   );