chore: fix dialyzer warning.

apps/emqx_management/src/emqx_mgmt_api_plugins.erl

@@ -77,7 +77,8 @@ schema("/plugins/install") ->
         'operationId' => upload_install,
         post => #{
             description => "Install a plugin(plugin-vsn.tar.gz)."
-            "Follow [emqx-plugin-template](https://github.com/emqx/emqx-plugin-template) to develop plugin.",
+            "Follow [emqx-plugin-template](https://github.com/emqx/emqx-plugin-template) "
+            "to develop plugin.",
             'requestBody' => #{
                 content => #{
                     'multipart/form-data' => #{
@@ -97,7 +98,7 @@ schema("/plugins/:name") ->
             parameters => [hoconsc:ref(name)],
             responses => #{
                 200 => hoconsc:ref(plugin),
-                404 => emqx_dashboard_swagger:error_codes(['NOT_FOUND'], "Plugin Not Found")
+                404 => emqx_dashboard_swagger:error_codes(['NOT_FOUND'], <<"Plugin Not Found">>)
             }
         },
         delete => #{
@@ -105,7 +106,7 @@ schema("/plugins/:name") ->
             parameters => [hoconsc:ref(name)],
             responses => #{
                 204 => <<"Uninstall successfully">>,
-                404 => emqx_dashboard_swagger:error_codes(['NOT_FOUND'], "Plugin Not Found")
+                404 => emqx_dashboard_swagger:error_codes(['NOT_FOUND'], <<"Plugin Not Found">>)
             }
         }
     };
@@ -121,7 +122,7 @@ schema("/plugins/:name/:action") ->
                 {action, hoconsc:mk(hoconsc:enum([start, stop]), #{desc => "Action", in => path})}],
             responses => #{
                 200 => <<"OK">>,
-                404 => emqx_dashboard_swagger:error_codes(['NOT_FOUND'], "Plugin Not Found")
+                404 => emqx_dashboard_swagger:error_codes(['NOT_FOUND'], <<"Plugin Not Found">>)
             }
         }
     };
@@ -142,7 +143,7 @@ fields(plugin) ->
             #{
                 desc => "Name-Vsn: without .tar.gz",
                 validator => fun ?MODULE:validate_name/1,
-                nullable => false,
+                required => true,
                 example => "emqx_plugin_template-5.0-rc.1"})
         },
         {author, hoconsc:mk(list(string()), #{example => [<<"EMQ X Team">>]})},
@@ -151,7 +152,8 @@ fields(plugin) ->
         {compatibility, hoconsc:mk(map(), #{example => #{<<"emqx">> => <<"~>5.0">>}})},
         {git_commit_or_build_date, hoconsc:mk(string(), #{
             example => "2021-12-25",
-            desc => "Last git commit date by `git log -1 --pretty=format:'%cd' --date=format:'%Y-%m-%d`."
+            desc => "Last git commit date by `git log -1 --pretty=format:'%cd' "
+                "--date=format:'%Y-%m-%d`.\n"
             " If the last commit date is not available, the build date will be presented."
         })},
         {functionality, hoconsc:mk(hoconsc:array(string()), #{example => [<<"Demo">>]})},
@@ -159,25 +161,26 @@ fields(plugin) ->
         {metadata_vsn, hoconsc:mk(string(), #{example => "0.1.0"})},
         {rel_vsn, hoconsc:mk(binary(),
             #{desc => "Plugins release version",
-                nullable => false,
+                required => true,
                 example => <<"5.0-rc.1">>})
         },
         {rel_apps, hoconsc:mk(hoconsc:array(binary()),
             #{desc => "Aplications in plugin.",
-                nullable => false,
+                required => true,
                 example => [<<"emqx_plugin_template-5.0.0">>, <<"map_sets-1.1.0">>]})
         },
         {repo, hoconsc:mk(string(), #{example => "https://github.com/emqx/emqx-plugin-template"})},
         {description, hoconsc:mk(binary(),
             #{desc => "Plugin description.",
-                nullable => false,
+                required => true,
                 example => "This is an demo plugin description"})
         },
-        {running_status, hoconsc:mk(hoconsc:array(hoconsc:ref(running_status)), #{nullable => false})},
+        {running_status, hoconsc:mk(hoconsc:array(hoconsc:ref(running_status)),
+            #{required => true})},
         {readme, hoconsc:mk(binary(), #{
             example => "This is an demo plugin.",
             desc => "only return when `GET /plugins/{name}`.",
-            nullable => true})}
+            required => false})}
     ];
 fields(name) ->
     [{name, hoconsc:mk(binary(),
@@ -199,9 +202,10 @@ fields(position) ->
         #{
             desc => """
              Enable auto-boot at position in the boot list, where Position could be
-             'top', 'bottom', or 'before:other-vsn', 'after:other-vsn' to specify a relative position.
+             'top', 'bottom', or 'before:other-vsn', 'after:other-vsn'
+             to specify a relative position.
             """,
-            nullable => true
+            required => false
         })}];
 fields(running_status) ->
     [
@@ -265,7 +269,8 @@ upload_install(post, #{body := #{<<"plugin">> := Plugin}}) when is_map(Plugin) -
 upload_install(post, #{} = Body) ->
     io:format("~p~n", [Body]),
     {400, #{code => 'BAD_FORM_DATA',
-        message => <<"form-data should be `plugin=@packagename-vsn.tar.gz;type=application/x-gzip`">>}
+        message =>
+        <<"form-data should be `plugin=@packagename-vsn.tar.gz;type=application/x-gzip`">>}
     }.
 
 plugin(get, #{bindings := #{name := Name}}) ->
@@ -315,28 +320,29 @@ describe_package(Name) ->
 delete_package(Name) ->
     case emqx_plugins:ensure_stopped(Name) of
         ok ->
-            emqx_plugins:ensure_disabled(Name),
+            _ = emqx_plugins:ensure_disabled(Name),
-            emqx_plugins:purge(Name),
+            _ = emqx_plugins:purge(Name),
-            emqx_plugins:delete_package(Name);
+            _ = emqx_plugins:delete_package(Name);
         Error -> Error
     end.
 
 %% for RPC plugin update
 ensure_action(Name, start) ->
-    emqx_plugins:ensure_enabled(Name),
+    _ = emqx_plugins:ensure_enabled(Name),
-    emqx_plugins:ensure_started(Name);
+    _ = emqx_plugins:ensure_started(Name);
 ensure_action(Name, stop) ->
-    emqx_plugins:ensure_stopped(Name),
+    _ = emqx_plugins:ensure_stopped(Name),
-    emqx_plugins:ensure_disabled(Name);
+    _ = emqx_plugins:ensure_disabled(Name);
 ensure_action(Name, restart) ->
-    emqx_plugins:ensure_enabled(Name),
+    _ = emqx_plugins:ensure_enabled(Name),
-    emqx_plugins:restart(Name).
+    _ = emqx_plugins:restart(Name).
 
 cluster_call(Mod, Fun, Args, Timeout) ->
     Nodes = mria_mnesia:running_nodes(),
     {GoodRes, BadNodes} = rpc:multicall(Nodes, Mod, Fun, Args, Timeout),
     BadNodes =/= [] andalso
-        ?SLOG(error, #{msg => "rpc_call_failed", bad_nodes => BadNodes, mfa => {Mod, Fun, length(Args)}}),
+        ?SLOG(error, #{msg => "rpc_call_failed", bad_nodes => BadNodes,
+            mfa => {Mod, Fun, length(Args)}}),
     GoodRes.
 
 cluster_rpc(Mod, Fun, Args) ->
@@ -358,14 +364,18 @@ return(_, {error, Reason}) ->
 
 parse_position(#{<<"position">> := <<"top">>}, _) -> front;
 parse_position(#{<<"position">> := <<"bottom">>}, _) -> rear;
-parse_position(#{<<"position">> := <<"before:", Name/binary>>}, Name) -> {error, <<"Can't before:self">>};
+parse_position(#{<<"position">> := <<"before:", Name/binary>>}, Name) ->
-parse_position(#{<<"position">> := <<"after:", Name/binary>>}, Name) -> {error, <<"Can't after:self">>};
+    {error, <<"Can't before:self">>};
-parse_position(#{<<"position">> := <<"before:", Before/binary>>}, _Name) -> {before, binary_to_list(Before)};
+parse_position(#{<<"position">> := <<"after:", Name/binary>>}, Name) ->
-parse_position(#{<<"position">> := <<"after:", After/binary>>}, _Name) -> {behind, binary_to_list(After)};
+    {error, <<"Can't after:self">>};
+parse_position(#{<<"position">> := <<"before:", Before/binary>>}, _Name) ->
+    {before, binary_to_list(Before)};
+parse_position(#{<<"position">> := <<"after:", After/binary>>}, _Name) ->
+    {behind, binary_to_list(After)};
 parse_position(Position, _) -> {error, iolist_to_binary(io_lib:format("~p", [Position]))}.
 
 format_plugins(List) ->
-    StatusMap = emqx_plugins_monitor:aggregate_status(List),
+    StatusMap = aggregate_status(List),
     SortFun = fun({_N1, P1}, {_N2, P2}) -> length(P1) > length(P2) end,
     SortList = lists:sort(SortFun, List),
     pack_status_in_order(SortList, StatusMap).
@@ -390,3 +400,21 @@ pack_plugin_in_order([Plugin0 | Plugins], Acc, StatusAcc) ->
         error ->
             pack_plugin_in_order(Plugins, Acc, StatusAcc)
     end.
+
+aggregate_status(List) -> aggregate_status(List, #{}).
+
+aggregate_status([], Acc) -> Acc;
+aggregate_status([{Node, Plugins} | List], Acc) ->
+    NewAcc =
+        lists:foldl(fun(Plugin, SubAcc) ->
+            #{<<"name">> := Name, <<"rel_vsn">> := Vsn} = Plugin,
+            Key = {Name, Vsn},
+            Value = #{node => Node, status => plugin_status(Plugin)},
+            SubAcc#{Key => [Value | maps:get(Key, Acc, [])]}
+                    end, Acc, Plugins),
+    aggregate_status(List, NewAcc).
+
+% running_status: running loaded, stopped
+%% config_status: not_configured disable enable
+plugin_status(#{running_status := running}) -> running;
+plugin_status(_) -> stopped.

apps/emqx_management/test/emqx_mgmt_api_test_util.erl

@@ -104,7 +104,8 @@ api_path(Parts)->
     ?SERVER ++ filename:join([?BASE_PATH | Parts]).
 
 %% Usage:
-%% upload_request(<<"site.com/api/upload">>, <<"path/to/file.png">>, <<"upload">>, <<"image/png">>, [], <<"some-token">>)
+%% upload_request(<<"site.com/api/upload">>, <<"path/to/file.png">>,
+%% <<"upload">>, <<"image/png">>, [], <<"some-token">>)
 %%
 %% Usage with RequestData:
 %% Payload = [{upload_type, <<"user_picture">>}],
@@ -112,8 +113,10 @@ api_path(Parts)->
 %% RequestData = [
 %%     {<<"payload">>, PayloadContent}
 %% ]
-%% upload_request(<<"site.com/api/upload">>, <<"path/to/file.png">>, <<"upload">>, <<"image/png">>, RequestData, <<"some-token">>)
+%% upload_request(<<"site.com/api/upload">>, <<"path/to/file.png">>,
--spec upload_request(URL, FilePath, Name, MimeType, RequestData, AuthorizationToken) -> {ok, binary()} | {error, list()} when
+%% <<"upload">>, <<"image/png">>, RequestData, <<"some-token">>)
+-spec upload_request(URL, FilePath, Name, MimeType, RequestData, AuthorizationToken) ->
+    {ok, binary()} | {error, list()} when
     URL:: binary(),
     FilePath:: binary(),
     Name:: binary(),
@@ -125,7 +128,8 @@ upload_request(URL, FilePath, Name, MimeType, RequestData, AuthorizationToken) -
     Filename = filename:basename(FilePath),
     {ok, Data} = file:read_file(FilePath),
     Boundary = emqx_guid:to_base62(emqx_guid:gen()),
-    RequestBody = format_multipart_formdata(Data, RequestData, Name, [Filename], MimeType, Boundary),
+    RequestBody = format_multipart_formdata(Data, RequestData, Name,
+        [Filename], MimeType, Boundary),
     ContentType = "multipart/form-data; boundary=" ++ binary_to_list(Boundary),
     ContentLength = integer_to_list(length(binary_to_list(RequestBody))),
     Headers = [
@@ -140,7 +144,8 @@ upload_request(URL, FilePath, Name, MimeType, RequestData, AuthorizationToken) -
     inets:start(),
     httpc:request(Method, {URL, Headers, ContentType, RequestBody}, HTTPOptions, Options).
 
--spec format_multipart_formdata(Data, Params, Name, FileNames, MimeType, Boundary) -> binary() when
+-spec format_multipart_formdata(Data, Params, Name, FileNames, MimeType, Boundary) ->
+    binary() when
     Data:: binary(),
     Params:: list(),
     Name:: binary(),
@@ -154,7 +159,8 @@ format_multipart_formdata(Data, Params, Name, FileNames, MimeType, Boundary) ->
         erlang:iolist_to_binary([
             Acc,
             StartBoundary, LineSeparator,
-            <<"Content-Disposition: form-data; name=\"">>, Key, <<"\"">>, LineSeparator, LineSeparator,
+            <<"Content-Disposition: form-data; name=\"">>, Key, <<"\"">>,
+            LineSeparator, LineSeparator,
             Value, LineSeparator
         ])
                              end, <<"">>, Params),
@@ -162,7 +168,8 @@ format_multipart_formdata(Data, Params, Name, FileNames, MimeType, Boundary) ->
         erlang:iolist_to_binary([
             Acc,
             StartBoundary, LineSeparator,
-            <<"Content-Disposition: form-data; name=\"">>, Name, <<"\"; filename=\"">>, FileName, <<"\"">>, LineSeparator,
+            <<"Content-Disposition: form-data; name=\"">>, Name, <<"\"; filename=\"">>,
+            FileName, <<"\"">>, LineSeparator,
             <<"Content-Type: ">>, MimeType, LineSeparator, LineSeparator,
             Data,
             LineSeparator

apps/emqx_plugins/src/emqx_plugins_monitor.erl

@@ -1,158 +0,0 @@
-%%--------------------------------------------------------------------
-%% Copyright (c) 2022 EMQ Technologies Co., Ltd. All Rights Reserved.
-%%
-%% Licensed under the Apache License, Version 2.0 (the "License");
-%% you may not use this file except in compliance with the License.
-%% You may obtain a copy of the License at
-%%
-%%     http://www.apache.org/licenses/LICENSE-2.0
-%%
-%% Unless required by applicable law or agreed to in writing, software
-%% distributed under the License is distributed on an "AS IS" BASIS,
-%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-%% See the License for the specific language governing permissions and
-%% limitations under the License.
-%%--------------------------------------------------------------------
--module(emqx_plugins_monitor).
--behaviour(gen_server).
-
--include_lib("emqx/include/emqx.hrl").
--include_lib("emqx/include/logger.hrl").
-
--export([ get_plugins/0
-        , start_link/0
-        , aggregate_status/1
-        ]).
-
--export([lock/1, unlock/1, lock/0, unlock/0]).
-
-%% gen_server callbacks
--export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3]).
-
--spec aggregate_status(list(tuple())) ->
-    [#{{Name :: binary(), Vsn :: binary()} => [#{node => node(), status => running | stopped}]}].
-aggregate_status(List) -> aggregate_status(List, #{}).
-
-aggregate_status([], Acc) -> Acc;
-aggregate_status([{Node, Plugins} | List], Acc) ->
-    NewAcc =
-        lists:foldl(fun(Plugin, SubAcc) ->
-            #{<<"name">> := Name, <<"rel_vsn">> := Vsn} = Plugin,
-            Key = {Name, Vsn},
-            Value = #{node => Node, status => plugin_status(Plugin)},
-            SubAcc#{Key => [Value | maps:get(Key, Acc, [])]}
-                    end, Acc, Plugins),
-    aggregate_status(List, NewAcc).
-
-start_link() ->
-    gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
-
-lock(Owner) ->
-    gen_server:call(?MODULE, {lock, Owner}).
-
-unlock(Owner) ->
-    gen_server:call(?MODULE, {unlock, Owner}).
-
-init([]) ->
-    {ok, #{ref => schedule_next_check(), failed => 0, lock => undefined}}.
-
-handle_call({lock, Owner}, _From, #{lock := undefined} = State) ->
-    {reply, true, State#{lock => Owner}};
-handle_call({lock, Owner}, _From, #{lock := Locker} = State) ->
-    case is_locker_alive(Locker) of
-        true -> {reply, false, State};
-        false -> {reply, true, State#{lock => Owner}}
-    end;
-handle_call({unlock, Owner}, _From, #{lock := Owner} = State) ->
-    {reply, true, State#{lock => undefined}};
-handle_call({unlock, _Owner}, _From, #{lock := Locker} = State) ->
-    case is_locker_alive(Locker) of
-        true -> {reply, false, State};
-        false -> {reply, true, State#{lock => undefined}}
-    end;
-handle_call(Req, _From, State) ->
-    ?SLOG(error, #{msg => "unexpected_call", call => Req}),
-    {reply, ignored, State}.
-
-handle_cast(Msg, State) ->
-    ?SLOG(error, #{msg => "unexpected_cast", cast => Msg}),
-    {noreply, State}.
-
-handle_info({timeout, _Ref, check}, State = #{failed := Failed}) ->
-    NewFailed = maybe_alarm(check(), Failed),
-    {noreply, State#{ref => schedule_next_check(), failed => NewFailed}};
-handle_info(Info, State) ->
-    ?SLOG(error, #{msg => "unexpected_info", info => Info}),
-    {noreply, State}.
-
-terminate(_Reason, _State) ->
-    ok.
-
-code_change(_OldVsn, State, _Extra) ->
-    {ok, State}.
-
-schedule_next_check() ->
-    Check = emqx_plugins:get_config(check_interval, 5000),
-    emqx_misc:start_timer(Check, check).
-
-is_locker_alive({Node, Pid}) ->
-    case rpc:call(Node, erlang, is_process_alive, [Pid]) of
-        {badrpc, _} -> false;
-        Boolean -> Boolean
-    end.
-
-check() ->
-    Nodes = mria_mnesia:running_nodes(),
-    case rpc:multicall(Nodes, ?MODULE, get_plugins, [], 15000) of
-        {Plugins, []} -> check_plugins(Plugins);
-        {_ , BadNodes} -> {error, lists:flatten(io_lib:format("~p rpc to ~p failed", [node(), BadNodes]))}
-    end.
-
-get_plugins() ->
-    {node(), emqx_plugins:list()}.
-
-check_plugins(Plugins) ->
-    StatusMap = aggregate_status(Plugins),
-    case ensure_install(StatusMap) of
-        {error, Bad} ->
-            ?SLOG(warning, #{msg => "plugin_not_install_on_some_node", broken_plugins => Bad});
-        {ok, Good} ->
-            check_status(Good)
-    end.
-
-ensure_install(Status) ->
-    Size = length(mria_mnesia:running_nodes()),
-    {Good, Bad} =
-        maps:fold(fun({Key, Value}, {GoodAcc, BadAcc}) ->
-            case length(Value) =:= Size of
-                true -> {GoodAcc#{Key => Value}, BadAcc};
-                false -> {GoodAcc, BadAcc#{Key => Value}}
-            end
-                  end, {#{}, #{}}, Status),
-    case map_size(Bad) =:= 0 of
-        true -> {ok, Good};
-        false -> {error, Bad}
-    end.
-
-check_status(_Plugins) ->
-    ok.
-
-%% alarm when failed 3 time.
-maybe_alarm({error, _Reason}, Failed) when Failed >= 2 ->
-    %alarm(Reason),
-    0;
-maybe_alarm({error, _Reason}, Failed) -> Failed + 1;
-maybe_alarm(ok, _Failed) -> 0.
-
-%% running_status: running loaded, stopped
-%% config_status: not_configured disable enable
-plugin_status(#{running_status := running}) -> running;
-plugin_status(_) -> stopped.
-
--define(RESOURCE, plugins_lock).
-
-lock() ->
-    ekka_locker:acquire(?MODULE, ?RESOURCE, all, undefined).
-
-unlock() ->
-    ekka_locker:release(?MODULE, ?RESOURCE, all).

apps/emqx_plugins/src/emqx_plugins_sup.erl

@@ -26,8 +26,9 @@ start_link() ->
     supervisor:start_link({local, ?MODULE}, ?MODULE, []).
 
 init([]) ->
+    %% TODO: Add monitor plugins change.
     Monitor = emqx_plugins_monitor,
-    Children = [
+    _Children = [
         #{id => Monitor,
             start => {Monitor, start_link, []},
             restart => permanent,
@@ -42,4 +43,4 @@ init([]) ->
             intensity => 100,
             period => 10
         },
-    {ok, {SupFlags, Children}}.
+    {ok, {SupFlags, []}}.