bitbake: hashserv: Add database column query API

Adds an API to retrieve the columns that can be queried on from the
database backend. This prevents front end applications from needing to
hardcode the query columns

(Bitbake rev: abfce2b68bdab02ea2e9a63fbb3b9e270428a0a6)

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/hashserv/client.py

@@ -190,6 +190,10 @@ class AsyncClient(bb.asyncrpc.AsyncClient):
         await self._set_mode(self.MODE_NORMAL)
         return (await self.invoke({"get-db-usage": {}}))["usage"]
 
+    async def get_db_query_columns(self):
+        await self._set_mode(self.MODE_NORMAL)
+        return (await self.invoke({"get-db-query-columns": {}}))["columns"]
+
 
 class Client(bb.asyncrpc.Client):
     def __init__(self, username=None, password=None):
@@ -219,6 +223,7 @@ class Client(bb.asyncrpc.Client):
             "delete_user",
             "become_user",
             "get_db_usage",
+            "get_db_query_columns",
         )
 
     def _get_async_client(self):