Fix #3764: Dynamically handle default branch in GitLab connector

backend/onyx/connectors/gitlab/connector.py

@@ -88,29 +88,35 @@ def _convert_issue_to_document(issue: Any) -> Document:
 def _convert_code_to_document(
     project: Project, file: Any, url: str, projectName: str, projectOwner: str
 ) -> Document:
+    # Dynamically get the default branch from the project object
+    default_branch = project.default_branch
+
+    # Fetch the file content using the correct branch
     file_content_obj = project.files.get(
-        file_path=file["path"], ref="master"
-    )  # Replace 'master' with your branch name if needed
+        file_path=file["path"], ref=default_branch  # Use the default branch
+    )
     try:
         file_content = file_content_obj.decode().decode("utf-8")
     except UnicodeDecodeError:
         file_content = file_content_obj.decode().decode("latin-1")
 
-    file_url = f"{url}/{projectOwner}/{projectName}/-/blob/master/{file['path']}"  # Construct the file URL
+    # Construct the file URL dynamically using the default branch
+    file_url = f"{url}/{projectOwner}/{projectName}/-/blob/{default_branch}/{file['path']}"
+
+    # Create and return a Document object
     doc = Document(
         id=file["id"],
         sections=[TextSection(link=file_url, text=file_content)],
         source=DocumentSource.GITLAB,
         semantic_identifier=file["name"],
-        doc_updated_at=datetime.now().replace(
-            tzinfo=timezone.utc
-        ),  # Use current time as updated_at
-        primary_owners=[],  # Fill this as needed
+        doc_updated_at=datetime.now().replace(tzinfo=timezone.utc),
+        primary_owners=[],  # Add owners if needed
         metadata={"type": "CodeFile"},
     )
     return doc
 
 
+
 def _should_exclude(path: str) -> bool:
     """Check if a path matches any of the exclude patterns."""
     return any(fnmatch.fnmatch(path, pattern) for pattern in exclude_patterns)