Add strict_typing rule to quality_scale hassfest validation (#131877)

* Add strict_typing rule to quality_scale hassfest validation

* Add acaia to .strict-typing

.strict-typing

@@ -41,6 +41,7 @@ homeassistant.util.unit_system
 # --- Add components below this line ---
 homeassistant.components
 homeassistant.components.abode.*
+homeassistant.components.acaia.*
 homeassistant.components.accuweather.*
 homeassistant.components.acer_projector.*
 homeassistant.components.acmeda.*

mypy.ini

@@ -165,6 +165,16 @@ disallow_untyped_defs = true
 warn_return_any = true
 warn_unreachable = true
 
+[mypy-homeassistant.components.acaia.*]
+check_untyped_defs = true
+disallow_incomplete_defs = true
+disallow_subclassing_any = true
+disallow_untyped_calls = true
+disallow_untyped_decorators = true
+disallow_untyped_defs = true
+warn_return_any = true
+warn_unreachable = true
+
 [mypy-homeassistant.components.accuweather.*]
 check_untyped_defs = true
 disallow_incomplete_defs = true

script/hassfest/quality_scale.py

@@ -19,6 +19,7 @@ from .quality_scale_validation import (
     diagnostics,
     reauthentication_flow,
     reconfiguration_flow,
+    strict_typing,
 )
 
 QUALITY_SCALE_TIERS = {value.name.lower(): value for value in ScaledQualityScaleTiers}
@@ -93,7 +94,7 @@ ALL_RULES = [
     # PLATINUM
     Rule("async-dependency", ScaledQualityScaleTiers.PLATINUM),
     Rule("inject-websession", ScaledQualityScaleTiers.PLATINUM),
-    Rule("strict-typing", ScaledQualityScaleTiers.PLATINUM),
+    Rule("strict-typing", ScaledQualityScaleTiers.PLATINUM, strict_typing),
 ]
 
 SCALE_RULES = {

script/hassfest/quality_scale_validation/strict_typing.py

@@ -0,0 +1,35 @@
+"""Enforce that the integration has strict typing enabled.
+
+https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/strict-typing/
+"""
+
+from functools import lru_cache
+from pathlib import Path
+import re
+
+from script.hassfest.model import Integration
+
+_STRICT_TYPING_FILE = Path(".strict-typing")
+_COMPONENT_REGEX = r"homeassistant.components.([^.]+).*"
+
+
+@lru_cache
+def _strict_typing_components() -> set[str]:
+    return set(
+        {
+            match.group(1)
+            for line in _STRICT_TYPING_FILE.read_text(encoding="utf-8").splitlines()
+            if (match := re.match(_COMPONENT_REGEX, line)) is not None
+        }
+    )
+
+
+def validate(integration: Integration) -> list[str] | None:
+    """Validate that the integration has strict typing enabled."""
+
+    if integration.domain not in _strict_typing_components():
+        return [
+            "Integration does not have strict typing enabled "
+            "(is missing from .strict-typing)"
+        ]
+    return None