Fixed search link when update to Docusaurus 3.4.0 (#410)

fix: handle hash link with url path, closes #408

---------

Co-authored-by: AnonID <[email protected]>
Co-authored-by: weareoutman <[email protected]>

Author: anonid-top

docusaurus-search-local/src/server/utils/scanDocuments.spec.ts

@@ -69,6 +69,16 @@ describe("scanDocuments", () => {
               hash: "",
               content: "",
             },
+            {
+              title: "Second heading",
+              hash: "/2#second-heading",
+              content: "Second content.",
+            },
+            {
+              title: "Third heading",
+              hash: "/3#third-heading",
+              content: "Third content.",
+            },
           ],
           breadcrumb: [],
         };
@@ -106,6 +116,13 @@ describe("scanDocuments", () => {
             "t": "First heading",
             "u": "/1",
           },
+          Object {
+            "h": "#second-heading",
+            "i": 6,
+            "p": 5,
+            "t": "Second heading",
+            "u": "/2",
+          },
         ],
         Array [
           Object {
@@ -142,6 +159,14 @@ describe("scanDocuments", () => {
             "t": "First content.",
             "u": "/1",
           },
+          Object {
+            "h": "#second-heading",
+            "i": 7,
+            "p": 5,
+            "s": "Second heading",
+            "t": "Second content.",
+            "u": "/2",
+          },
         ],
       ]
     `);

docusaurus-search-local/src/server/utils/scanDocuments.ts

@@ -81,23 +81,33 @@ export async function scanDocuments(
       }
 
       for (const section of sections) {
+        const trimmedHash = getTrimmedHash(section.hash, url);
+
         if (section.title !== pageTitle) {
+          if (trimmedHash === false) {
+            continue;
+          }
+
           headingDocuments.push({
             i: getNextDocId(),
             t: section.title,
             u: url,
-            h: section.hash,
+            h: trimmedHash,
             p: titleId,
           });
         }
 
         if (section.content) {
+          if (trimmedHash === false) {
+            continue;
+          }
+
           contentDocuments.push({
             i: getNextDocId(),
             t: section.content,
             s: section.title || pageTitle,
             u: url,
-            h: section.hash,
+            h: trimmedHash,
             p: titleId,
           });
         }
@@ -106,3 +116,18 @@ export async function scanDocuments(
   );
   return allDocuments;
 }
+
+function getTrimmedHash(hash: string, url: string) {
+  if (hash && !hash.startsWith("#") && hash.includes("#")) {
+    // The hash link may contains URL path, we need to remove it.
+    if (hash.startsWith(url) && hash[url.length] === "#") {
+      return hash.slice(url.length);
+    }
+
+    // If the hash doesn't start with the URL, it's likely an external link.
+    // Don't know this will happen or not, but just in case.
+    return false;
+  }
+
+  return hash;
+}