xinfo-groups: support nil lag in XINFO GROUPS

ofekshenawa · ofekshenawa · commit edb6283eb548 · 2025-05-07T16:41:02.000+03:00
diff --git a/command.go b/command.go
@@ -2189,6 +2189,8 @@ func (cmd *XInfoGroupsCmd) readReply(rd *proto.Reader) error {
 				// to the group's consumers, or a NULL(Nil) when that number can't be determined.
 				if err != nil && err != Nil {
 					return err
+				} else if err == Nil {
+					group.Lag = -1
 				}
 			default:
 				return fmt.Errorf("redis: unexpected key %q in XINFO GROUPS reply", key)

Original file line number	Diff line number	Diff line change
`@@ -2189,6 +2189,8 @@ func (cmd XInfoGroupsCmd) readReply(rd proto.Reader) error {`
`2189`	`2189`	`// to the group's consumers, or a NULL(Nil) when that number can't be determined.`
`2190`	`2190`	`if err != nil && err != Nil {`
`2191`	`2191`	`return err`
	`2192`	`+ } else if err == Nil {`
	`2193`	`+ group.Lag = -1`
`2192`	`2194`	`}`
`2193`	`2195`	`default:`
`2194`	`2196`	`return fmt.Errorf("redis: unexpected key %q in XINFO GROUPS reply", key)`