fix: Minor error handling in metadata read, log fix in index (#21)

Minor error handling in metadata read, log fix in index

Author: chandrasekharan-zipstack

src/unstract/sdk/index.py

@@ -281,7 +281,7 @@ def index_file(
                     raise SdkError(f"Error adding nodes to vector db: {e}")
                 self.tool.stream_log("Added nodes to vector db")
 
-        self.tool.stream_log("Done indexing file")
+            self.tool.stream_log("File has been indexed successfully")
         return doc_id
 
     @staticmethod

src/unstract/sdk/tool/base.py

@@ -1,7 +1,7 @@
 import datetime
 import json
 from abc import ABC, abstractmethod
-from json import loads
+from json import JSONDecodeError, loads
 from pathlib import Path
 from typing import Any, Union
 
@@ -170,6 +170,10 @@ def _get_exec_metadata(self) -> dict[str, Any]:
         try:
             with open(metadata_path, encoding="utf-8") as f:
                 metadata_json = loads(f.read())
+        except JSONDecodeError as e:
+            self.stream_error_and_exit(
+                f"JSON decode error for {metadata_path}: {e}"
+            )
         except FileNotFoundError:
             self.stream_error_and_exit(
                 f"Metadata file not found at {metadata_path}"