Fix google_mail doing blocking i/o in the event loop (take 2) (#118441)

homeassistant/components/google_mail/__init__.py

@@ -32,7 +32,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Google Mail from a config entry."""
     implementation = await async_get_config_entry_implementation(hass, entry)
     session = OAuth2Session(hass, entry, implementation)
-    auth = AsyncConfigEntryAuth(session)
+    auth = AsyncConfigEntryAuth(hass, session)
     await auth.check_and_refresh_token()
     hass.data[DOMAIN][entry.entry_id] = auth
 

homeassistant/components/google_mail/api.py

@@ -1,5 +1,7 @@
 """API for Google Mail bound to Home Assistant OAuth."""
 
+from functools import partial
+
 from aiohttp.client_exceptions import ClientError, ClientResponseError
 from google.auth.exceptions import RefreshError
 from google.oauth2.credentials import Credentials
@@ -7,6 +9,7 @@ from googleapiclient.discovery import Resource, build
 
 from homeassistant.config_entries import ConfigEntryState
 from homeassistant.const import CONF_ACCESS_TOKEN
+from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import (
     ConfigEntryAuthFailed,
     ConfigEntryNotReady,
@@ -20,9 +23,11 @@ class AsyncConfigEntryAuth:
 
     def __init__(
         self,
+        hass: HomeAssistant,
         oauth2_session: config_entry_oauth2_flow.OAuth2Session,
     ) -> None:
         """Initialize Google Mail Auth."""
+        self._hass = hass
         self.oauth_session = oauth2_session
 
     @property
@@ -58,4 +63,6 @@ class AsyncConfigEntryAuth:
     async def get_resource(self) -> Resource:
         """Get current resource."""
         credentials = Credentials(await self.check_and_refresh_token())
-        return build("gmail", "v1", credentials=credentials)
+        return await self._hass.async_add_executor_job(
+            partial(build, "gmail", "v1", credentials=credentials)
+        )