bitbake: asyncrpc: Add InvokeError

Adds support for Invocation Errors (that is, errors raised by the actual
RPC call instead of at the protocol level) to propagate across the
connection. If a server RPC call raises an InvokeError, it will be sent
across the connection and then raised on the client side also. The
connection is still terminated on this error.

(Bitbake rev: 50ee68175e7cf20a32bfbb176db2c47d7859da04)

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

bitbake/lib/bb/asyncrpc/client.py

@@ -11,7 +11,7 @@ import os
 import socket
 import sys
 from .connection import StreamConnection, WebsocketConnection, DEFAULT_MAX_CHUNK
-from .exceptions import ConnectionClosedError
+from .exceptions import ConnectionClosedError, InvokeError
 
 
 class AsyncClient(object):
@@ -93,12 +93,18 @@ class AsyncClient(object):
                 await self.close()
                 count += 1
 
+    def check_invoke_error(self, msg):
+        if isinstance(msg, dict) and "invoke-error" in msg:
+            raise InvokeError(msg["invoke-error"]["message"])
+
     async def invoke(self, msg):
         async def proc():
             await self.socket.send_message(msg)
             return await self.socket.recv_message()
 
-        return await self._send_wrapper(proc)
+        result = await self._send_wrapper(proc)
+        self.check_invoke_error(result)
+        return result
 
     async def ping(self):
         return await self.invoke({"ping": {}})