fix(utils): preserve author names containing commas in git log parsing

packages/docusaurus-utils/src/vcs/__tests__/gitUtils.test.ts

@@ -396,6 +396,24 @@ describe('commit info APIs', () => {
         }
       `);
     });
+
+    it('preserves author names containing commas', async () => {
+      const {repoDir, git} = await createGitRepoEmpty();
+
+      await git.commitFile('comma-author.txt', {
+        fileContent: 'content',
+        commitMessage: 'Commit by author with comma in name',
+        commitDate: '2024-01-15',
+        commitAuthor: 'Doe, Jane <jane@example.com>',
+      });
+
+      const filesInfo = await getGitRepositoryFilesInfo(repoDir);
+      const fileInfo = filesInfo.get('comma-author.txt');
+
+      expect(fileInfo).toBeDefined();
+      expect(fileInfo!.creation.author).toBe('Doe, Jane');
+      expect(fileInfo!.lastUpdate.author).toBe('Doe, Jane');
+    });
   });
 });
 

packages/docusaurus-utils/src/vcs/gitUtils.ts

@@ -491,11 +491,13 @@ The command exited with code ${result.exitCode}: ${result.stderr}`,
   for (const logLine of logLines) {
     if (logLine.startsWith('t:')) {
       // t:<timestamp>,a:<author name>
-      const [timestampStr, authorStr] = logLine.split(',') as [string, string];
-      const timestamp = Number.parseInt(timestampStr.slice(2), 10) * 1000;
-      const author = authorStr.slice(2);
+      // We can't use split(',') because author names may contain commas
+      // (e.g., "Last, First" or "John Doe, Jr.")
+      const separatorIndex = logLine.indexOf(',a:');
+      const timestampStr = logLine.slice(2, separatorIndex);
+      const author = logLine.slice(separatorIndex + 3);
 
-      runningDate = timestamp;
+      runningDate = Number.parseInt(timestampStr, 10) * 1000;
       runningAuthor = author;
     }