style: introduce ruff as linter and formatter (#1356)

* style: remove necessary imports

* style: fix F841

* style: fix F401

* style: fix F811

* style: fix E402

* style: fix E721

* style: fix E722

* style: fix E722

* style: fix F541

* style: ruff format

* style: all passed

* style: add ruff in deps

* style: more ignores in ruff.toml

* style: add pre-commit

pkg/command/operators/prompt.py

@@ -2,28 +2,23 @@ from __future__ import annotations
 
 import typing
 
-from .. import operator, entities, cmdmgr, errors
+from .. import operator, entities, errors
 
 
-@operator.operator_class(
-    name="prompt",
-    help="查看当前对话的前文",
-    usage='!prompt'
-)
+@operator.operator_class(name='prompt', help='查看当前对话的前文', usage='!prompt')
 class PromptOperator(operator.CommandOperator):
-    
     async def execute(
-        self,
-        context: entities.ExecuteContext
+        self, context: entities.ExecuteContext
     ) -> typing.AsyncGenerator[entities.CommandReturn, None]:
-        """执行
-        """
+        """执行"""
         if context.session.using_conversation is None:
-            yield entities.CommandReturn(error=errors.CommandOperationError('当前没有对话'))
+            yield entities.CommandReturn(
+                error=errors.CommandOperationError('当前没有对话')
+            )
         else:
             reply_str = '当前对话所有内容:\n\n'
 
             for msg in context.session.using_conversation.messages:
-                reply_str += f"{msg.role}: {msg.content}\n"
+                reply_str += f'{msg.role}: {msg.content}\n'
 
-            yield entities.CommandReturn(text=reply_str)
+            yield entities.CommandReturn(text=reply_str)