feat: allow not to create working dir (#69)

Author: gusye1234

nano_graphrag/graphrag.py

@@ -125,6 +125,7 @@ class GraphRAG:
     enable_llm_cache: bool = True
 
     # extension
+    always_create_working_dir: bool = True
     addon_params: dict = field(default_factory=dict)
     convert_response_to_json_func: callable = convert_response_to_json
 
@@ -144,7 +145,7 @@ def __post_init__(self):
                 "Switched the default openai funcs to Azure OpenAI if you didn't set any of it"
             )
 
-        if not os.path.exists(self.working_dir):
+        if not os.path.exists(self.working_dir) and self.always_create_working_dir:
             logger.info(f"Creating working directory {self.working_dir}")
             os.makedirs(self.working_dir)
 

readme.md

@@ -156,7 +156,7 @@ await graph_func.aquery(...)
 
 ### Available Parameters
 
-`GraphRAG` and `QueryParam` are `dataclass` in Python. Use `help(GraphRAG)` and `help(QueryParam)` to see all available parameters! 
+`GraphRAG` and `QueryParam` are `dataclass` in Python. Use `help(GraphRAG)` and `help(QueryParam)` to see all available parameters!  Or check out the [Advances](#Advances) section to see some options.
 
 
 
@@ -188,6 +188,17 @@ Below are the components you can use:
 
 ## Advances
 
+
+
+<details>
+<summary>Some setup options</summary>
+
+- `GraphRAG(...,always_create_working_dir=False,...)` will skip the dir-creating step. Use it if you switch all your components to non-file storages.
+
+</details>
+
+
+
 <details>
 <summary>Only query the related context</summary>