fix: run commands in package directory if meta=none

`project_dir` is set as the working directory if meta generation is
turned off. Commands cwd to `project_dir`, so hooks will be run in
whatever directory you're running the `generate` command in.
The default post-hooks will then run recursively in that directory
on any Python files it can find.

Set the directory to run commands in to `package_dir` if meta is none,
so post-hooks only touch the generated code.

fixes openapi-generators#696

Author: brenmous

openapi_python_client/__init__.py

@@ -153,8 +153,9 @@ def _run_command(self, cmd: str) -> None:
             )
             return
         try:
+            dir = self.package_dir if self.meta == MetaType.NONE else self.project_dir
             subprocess.run(
-                cmd, cwd=self.project_dir, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, check=True
+                cmd, cwd=dir, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, check=True
             )
         except CalledProcessError as err:
             self.errors.append(