feat(handwritten): centralize mypy config for hybrid packages and add overrides

Author: chalmerlowe

mypy.ini

@@ -100,3 +100,20 @@ ignore_errors = False
 # --- bigframes ---
 [mypy-bigframes_vendored.*]
 ignore_errors = True
+
+# --- google-cloud-datastore ---
+[mypy-google.cloud.datastore.*]
+ignore_missing_imports = True
+
+[mypy-google.cloud.datastore._app_engine_key_pb2]
+ignore_errors = True
+
+[mypy-google.cloud.datastore_v1.services.datastore.async_client]
+ignore_errors = True
+
+[mypy-google.cloud.datastore_v1.services.datastore.client]
+ignore_errors = True
+
+# --- google-cloud-firestore ---
+[mypy-google.cloud.firestore.*]
+check_untyped_defs = True

packages/google-cloud-bigtable/mypy.ini

@@ -66,6 +66,17 @@
 SYSTEM_TEST_EXTRAS_BY_PYTHON: Dict[str, List[str]] = {}
 
 CURRENT_DIRECTORY = pathlib.Path(__file__).parent.absolute()
+# Path to the centralized mypy configuration file at the repository root.
+# Search upwards to support running nox from both monorepo packages and integration test goldens.
+MYPY_CONFIG_FILE = next(
+    (
+        str(p / "mypy.ini")
+        for p in CURRENT_DIRECTORY.parents
+        if (p / "mypy.ini").exists()
+    ),
+    str(CURRENT_DIRECTORY.parent.parent / "mypy.ini"),
+)
+
 
 # 'docfx' is excluded since it only needs to run in 'docs-presubmit'
 nox.options.sessions = [
@@ -175,7 +186,7 @@ def mypy(session):
         "types-requests",
     )
     session.install("google-cloud-testutils")
-    session.run("mypy", "-p", "google.cloud.bigtable.data")
+    session.run("mypy", f"--config-file={MYPY_CONFIG_FILE}", "-p", "google.cloud.bigtable.data")
 
 
 @nox.session(python=DEFAULT_PYTHON_VERSION)

packages/google-cloud-bigtable/noxfile.py

@@ -46,6 +46,17 @@
 PREVIEW_PYTHON_VERSION = "3.14"
 
 CURRENT_DIRECTORY = pathlib.Path(__file__).parent.absolute()
+# Path to the centralized mypy configuration file at the repository root.
+# Search upwards to support running nox from both monorepo packages and integration test goldens.
+MYPY_CONFIG_FILE = next(
+    (
+        str(p / "mypy.ini")
+        for p in CURRENT_DIRECTORY.parents
+        if (p / "mypy.ini").exists()
+    ),
+    str(CURRENT_DIRECTORY.parent.parent / "mypy.ini"),
+)
+
 
 if (CURRENT_DIRECTORY / "testing").exists():
     LOWER_BOUND_CONSTRAINTS_FILE = (
@@ -107,6 +118,7 @@ def mypy(session):
     session.install(".")
     session.run(
         "mypy",
+        f"--config-file={MYPY_CONFIG_FILE}",
         "-p",
         "google",
         # TODO(https://github.com/googleapis/google-cloud-python/issues/16083)

packages/google-cloud-datastore/mypy.ini

@@ -46,6 +46,17 @@
 PREVIEW_PYTHON_VERSION = "3.14"
 
 CURRENT_DIRECTORY = pathlib.Path(__file__).parent.absolute()
+# Path to the centralized mypy configuration file at the repository root.
+# Search upwards to support running nox from both monorepo packages and integration test goldens.
+MYPY_CONFIG_FILE = next(
+    (
+        str(p / "mypy.ini")
+        for p in CURRENT_DIRECTORY.parents
+        if (p / "mypy.ini").exists()
+    ),
+    str(CURRENT_DIRECTORY.parent.parent / "mypy.ini"),
+)
+
 
 if (CURRENT_DIRECTORY / "testing").exists():
     LOWER_BOUND_CONSTRAINTS_FILE = (
@@ -107,6 +118,7 @@ def mypy(session):
     session.install(".")
     session.run(
         "mypy",
+        f"--config-file={MYPY_CONFIG_FILE}",
         "-p",
         "google",
         # TODO(https://github.com/googleapis/google-cloud-python/issues/16083)

packages/google-cloud-datastore/noxfile.py

@@ -46,6 +46,17 @@
 PREVIEW_PYTHON_VERSION = "3.14"
 
 CURRENT_DIRECTORY = pathlib.Path(__file__).parent.absolute()
+# Path to the centralized mypy configuration file at the repository root.
+# Search upwards to support running nox from both monorepo packages and integration test goldens.
+MYPY_CONFIG_FILE = next(
+    (
+        str(p / "mypy.ini")
+        for p in CURRENT_DIRECTORY.parents
+        if (p / "mypy.ini").exists()
+    ),
+    str(CURRENT_DIRECTORY.parent.parent / "mypy.ini"),
+)
+
 
 if (CURRENT_DIRECTORY / "testing").exists():
     LOWER_BOUND_CONSTRAINTS_FILE = (
@@ -166,9 +177,9 @@ def mypy(session):
     session.install(".")
     session.run(
         "mypy",
+        f"--config-file={MYPY_CONFIG_FILE}",
         "-p",
         "google",
-        "--check-untyped-defs",
         *session.posargs,
     )