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/utils/importutil.py

@@ -0,0 +1,43 @@
+import importlib
+import importlib.util
+import os
+import typing
+
+
+def import_modules_in_pkg(pkg: typing.Any) -> None:
+    """
+    导入一个包内的所有模块
+    Args:
+        pkg: 要导入的包对象
+    """
+    pkg_path = os.path.dirname(pkg.__file__)
+    import_dir(pkg_path)
+
+
+def import_modules_in_pkgs(pkgs: typing.List) -> None:
+    for pkg in pkgs:
+        import_modules_in_pkg(pkg)
+
+
+def import_dot_style_dir(dot_sep_path: str):
+    sec = dot_sep_path.split('.')
+
+    return import_dir(os.path.join(*sec))
+
+
+def import_dir(path: str):
+    for file in os.listdir(path):
+        if file.endswith('.py') and file != '__init__.py':
+            full_path = os.path.join(path, file)
+            rel_path = full_path.replace(
+                os.path.dirname(os.path.dirname(os.path.dirname(__file__))), ''
+            )
+            rel_path = rel_path[1:]
+            rel_path = rel_path.replace('/', '.')[:-3]
+            importlib.import_module(rel_path)
+
+
+if __name__ == '__main__':
+    from pkg.platform import types
+
+    import_modules_in_pkg(types)