Make local json cache when it doesn't exist

autogpt/memory/local.py

@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 import dataclasses
-import os
+from pathlib import Path
 from typing import Any, List
 
 import numpy as np
@@ -38,26 +38,22 @@ class LocalCache(MemoryProviderSingleton):
         Returns:
             None
         """
-        self.filename = f"{cfg.memory_index}.json"
-        if os.path.exists(self.filename):
-            try:
-                with open(self.filename, "w+b") as f:
-                    file_content = f.read()
-                    if not file_content.strip():
-                        file_content = b"{}"
-                        f.write(file_content)
+        workspace_path = Path(cfg.workspace_path)
+        self.filename = workspace_path / f"{cfg.memory_index}.json"
+        self.filename.touch(exist_ok=True)
 
-                    loaded = orjson.loads(file_content)
-                    self.data = CacheContent(**loaded)
-            except orjson.JSONDecodeError:
-                print(f"Error: The file '{self.filename}' is not in JSON format.")
-                self.data = CacheContent()
-        else:
-            print(
-                f"Warning: The file '{self.filename}' does not exist. "
-                "Local memory would not be saved to a file."
-            )
-            self.data = CacheContent()
+        try:
+            with self.filename.open("w+b") as f:
+                file_content = f.read()
+                if not file_content.strip():
+                    file_content = b"{}"
+                    f.write(file_content)
+                loaded = orjson.loads(file_content)
+        except orjson.JSONDecodeError:
+            print(f"Error: The file '{self.filename}' is not in JSON format.")
+            loaded = {}
+
+        self.data = CacheContent(**loaded)
 
     def add(self, text: str):
         """