RMQ-1263: Shovels forward counter - fix dialyzer

(cherry picked from commit af22cf427a7054d93b3dd64fda01a86649fdd7c5)

deps/rabbitmq_shovel/src/Elixir.RabbitMQ.CLI.Ctl.Commands.RestartShovelCommand.erl

@@ -63,7 +63,7 @@ run([Name], #{node := Node, vhost := VHost}) ->
                 undefined ->
                     {error, rabbit_data_coercion:to_binary(ErrMsg)};
                 Match ->
-                    {{_Name, _VHost}, _Type, {_State, Opts}, _Timestamp} = Match,
+                    {{_Name, _VHost}, _Type, {_State, Opts}, _Metrics, _Timestamp} = Match,
                     {_, HostingNode} = lists:keyfind(node, 1, Opts),
                     case rabbit_misc:rpc_call(
                         HostingNode, rabbit_shovel_util, restart_shovel, [VHost, Name]) of

deps/rabbitmq_shovel/src/rabbit_shovel_behaviour.erl

@@ -83,7 +83,7 @@
 -callback forward(Tag :: tag(), Props :: #{atom() => any()},
                   Payload :: binary(), state()) ->
     state() | {stop, any()}.
--callback status(state()) -> rabbit_shovel_status:blocked_status() | ignore.
+-callback status(state()) -> rabbit_shovel_status:shovel_status().
 
 -spec parse(atom(), binary(), {source | destination, proplists:proplist()}) ->
     source_config() | dest_config().
@@ -155,12 +155,14 @@ ack(Tag, Multi, #{source := #{module := Mod}} = State) ->
 nack(Tag, Multi, #{source := #{module := Mod}} = State) ->
     Mod:nack(Tag, Multi, State).
 
+-spec status(state()) -> {rabbit_shovel_status:shovel_status(), rabbit_shovel_status:metrics()}.
 status(#{dest := #{module := Mod}} = State) ->
     {Mod:status(State), metrics(State)}.
 
 incr_forwarded(State = #{dest := Dest}) ->
     State#{dest => maps:put(forwarded, maps:get(forwarded, Dest, 0) + 1, Dest)}.
 
+-spec metrics(state()) -> rabbit_shovel_status:metrics().
 metrics(_State = #{source := Source,
                    dest := Dest}) ->
     #{remaining => maps:get(remaining, Source, unlimited),

deps/rabbitmq_shovel/src/rabbit_shovel_status.erl

@@ -36,12 +36,18 @@
               | {running, proplists:proplist()}
               | {terminated, term()}.
 -type blocked_status() :: running | flow | blocked.
+-type shovel_status() :: blocked_status() | ignore.
 
 -type name() :: binary() | {rabbit_types:vhost(), binary()}.
 -type type() :: static | dynamic.
--type status_tuple() :: {name(), type(), info(), calendar:datetime()}.
+-type metrics() :: #{remaining := rabbit_types:option(non_neg_integer()) | unlimited,
+                     remaining_unacked := rabbit_types:option(non_neg_integer()),
+                     pending := rabbit_types:option(non_neg_integer()),
+                     forwarded := rabbit_types:option(non_neg_integer())
+                    } | #{}.
+-type status_tuple() :: {name(), type(), info(), metrics(), calendar:datetime()}.
 
--export_type([info/0, blocked_status/0]).
+-export_type([info/0, blocked_status/0, shovel_status/0, metrics/0]).
 
 -record(state, {timer}).
 -record(entry, {name :: name(),
@@ -49,11 +55,7 @@
                 info :: info(),
                 blocked_status = running :: blocked_status(),
                 blocked_at :: integer() | undefined,
-                metrics :: #{remaining := rabbit_types:option(non_neg_integer()) | unlimited,
-                             ramaining_unacked := rabbit_types:option(non_neg_integer()),
-                             pending := rabbit_types:option(non_neg_integer()),
-                             forwarded := rabbit_types:option(non_neg_integer())
-                             },
+                metrics = #{} :: metrics(),
 
                 timestamp :: calendar:datetime()}).
 
@@ -64,7 +66,7 @@ start_link() ->
 report(Name, Type, Info) ->
     gen_server:cast(?SERVER, {report, Name, Type, Info, calendar:local_time()}).
 
--spec report_blocked_status(name(), blocked_status()) -> ok.
+-spec report_blocked_status(name(), {blocked_status(), metrics()} | blocked_status()) -> ok.
 report_blocked_status(Name, Status) ->
     gen_server:cast(?SERVER, {report_blocked_status, Name, Status, erlang:monotonic_time()}).
 

deps/rabbitmq_shovel/src/rabbit_shovel_worker.erl

@@ -21,7 +21,7 @@
 -record(state, {name :: binary() | {rabbit_types:vhost(), binary()},
                 type :: static | dynamic,
                 config :: rabbit_shovel_behaviour:state(),
-                last_reported_status = running :: rabbit_shovel_status:blocked_status()}).
+                last_reported_status = {running, #{}} :: {rabbit_shovel_status:blocked_status(), rabbit_shovel_status:metrics()}}).
 
 start_link(Type, Name, Config) ->
     ShovelParameter = rabbit_shovel_util:get_shovel_parameter(Name),
@@ -224,7 +224,7 @@ human_readable_name(Name) ->
 maybe_report_blocked_status(#state{config = Config,
                                    last_reported_status = LastStatus} = State) ->
     case rabbit_shovel_behaviour:status(Config) of
-        ignore ->
+        {ignore, _} ->
             State;
         LastStatus ->
             State;