Enforce sorting of manifests (#87020)

script/hassfest/manifest.py

@@ -2,7 +2,9 @@
 from __future__ import annotations
 
 from enum import IntEnum
+import json
 from pathlib import Path
+import subprocess
 from typing import Any
 from urllib.parse import urlparse
 
@@ -361,8 +363,39 @@ def validate_manifest(integration: Integration, core_components_dir: Path) -> No
         validate_version(integration)
 
 
+_SORT_KEYS = {"domain": ".domain", "name": ".name"}
+
+
+def _sort_manifest_keys(key: str) -> str:
+    return _SORT_KEYS.get(key, key)
+
+
+def sort_manifest(integration: Integration) -> bool:
+    """Sort manifest."""
+    keys = list(integration.manifest.keys())
+    if (keys_sorted := sorted(keys, key=_sort_manifest_keys)) != keys:
+        manifest = {key: integration.manifest[key] for key in keys_sorted}
+        integration.manifest_path.write_text(json.dumps(manifest, indent=2))
+        integration.add_error(
+            "manifest",
+            "Manifest keys have been sorted: domain, name, then alphabetical order",
+        )
+        return True
+    return False
+
+
 def validate(integrations: dict[str, Integration], config: Config) -> None:
     """Handle all integrations manifests."""
     core_components_dir = config.root / "homeassistant/components"
+    manifests_resorted = []
     for integration in integrations.values():
         validate_manifest(integration, core_components_dir)
+        if not integration.errors:
+            if sort_manifest(integration):
+                manifests_resorted.append(integration.manifest_path)
+    if manifests_resorted:
+        subprocess.run(
+            ["pre-commit", "run", "--hook-stage", "manual", "prettier", "--files"]
+            + manifests_resorted,
+            stdout=subprocess.DEVNULL,
+        )