bitbake: cooker: Use hash client to ping upstream server

The cooker attempts to connect to the upstream hash equivalent server to
warn the user early if it is misconfigured. However, this was making the
assumption that it was a raw TCP connection and failed when attempting
to use a websocket upstream server. Fix this by creating an hash client
and using the ping API to check the server instead of using a raw
socket.

(Bitbake rev: 5e84c13a6c594ed34c341849806657ddda206714)

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

bitbake/lib/bb/cooker.py

@@ -315,11 +315,10 @@ class BBCooker:
                 dbfile = (self.data.getVar("PERSISTENT_DIR") or self.data.getVar("CACHE")) + "/hashserv.db"
                 upstream = self.data.getVar("BB_HASHSERVE_UPSTREAM") or None
                 if upstream:
-                    import socket
                     try:
-                        sock = socket.create_connection(upstream.split(":"), 5)
-                        sock.close()
-                    except socket.error as e:
+                        with hashserv.create_client(upstream) as client:
+                            client.ping()
+                    except ConnectionError as e:
                         bb.warn("BB_HASHSERVE_UPSTREAM is not valid, unable to connect hash equivalence server at '%s': %s"
                                  % (upstream, repr(e)))