fetch: refactor verbosity option handling into transport.[ch]

transport_set_verbosity() is now provided to transport users.

Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin-fetch.c

@@ -823,10 +823,7 @@ static int fetch_one(struct remote *remote, int argc, const char **argv)
 		die("Where do you want to fetch from today?");
 
 	transport = transport_get(remote, NULL);
-	if (verbosity >= 2)
-		transport->verbose = verbosity <= 3 ? verbosity : 3;
-	if (verbosity < 0)
-		transport->verbose = -1;
+	transport_set_verbosity(transport, verbosity);
 	if (upload_pack)
 		set_option(TRANS_OPT_UPLOADPACK, upload_pack);
 	if (keep)

transport.c

@@ -1013,6 +1013,14 @@ int transport_set_option(struct transport *transport,
 	return 1;
 }
 
+void transport_set_verbosity(struct transport *transport, int verbosity)
+{
+	if (verbosity >= 2)
+		transport->verbose = verbosity <= 3 ? verbosity : 3;
+	if (verbosity < 0)
+		transport->verbose = -1;
+}
+
 int transport_push(struct transport *transport,
 		   int refspec_nr, const char **refspec, int flags,
 		   int *nonfastforward)

transport.h

@@ -122,6 +122,7 @@ struct transport *transport_get(struct remote *, const char *);
  **/
 int transport_set_option(struct transport *transport, const char *name,
 			 const char *value);
+void transport_set_verbosity(struct transport *transport, int verbosity);
 
 int transport_push(struct transport *connection,
 		   int refspec_nr, const char **refspec, int flags,