Major fixes and new features

venv/lib/python3.12/site-packages/mypy/dmypy_util.py

@@ -0,0 +1,31 @@
+"""Shared code between dmypy.py and dmypy_server.py.
+
+This should be pretty lightweight and not depend on other mypy code (other than ipc).
+"""
+
+from __future__ import annotations
+
+import json
+from typing import Any, Final
+
+from mypy.ipc import IPCBase
+
+DEFAULT_STATUS_FILE: Final = ".dmypy.json"
+
+
+def receive(connection: IPCBase) -> Any:
+    """Receive JSON data from a connection until EOF.
+
+    Raise OSError if the data received is not valid JSON or if it is
+    not a dict.
+    """
+    bdata = connection.read()
+    if not bdata:
+        raise OSError("No data received")
+    try:
+        data = json.loads(bdata.decode("utf8"))
+    except Exception as e:
+        raise OSError("Data received is not valid JSON") from e
+    if not isinstance(data, dict):
+        raise OSError(f"Data received is not a dict ({type(data)})")
+    return data