Includes mmctl into the mono-repo (#23091)

* Includes mmctl into the mono-repo

* Update to use the new public module paths

* Adds docs check to the mmctl CI

* Fix public utils import path

* Tidy up modules

* Fix linter

* Update CI tasks to use the new file structure

* Update CI references

server/cmd/mmctl/commands/channelargs_test.go

@@ -0,0 +1,113 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package commands
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+
+	"github.com/mattermost/mattermost-server/server/public/model"
+)
+
+func (s *MmctlUnitTestSuite) TestGetChannelArgs() {
+	s.Run("channel not found", func() {
+		notFoundChannel := "notfoundchannel"
+		notFoundErr := errors.New("channel not found")
+
+		s.client.
+			EXPECT().
+			GetChannel(notFoundChannel, "").
+			Return(nil, &model.Response{StatusCode: http.StatusNotFound}, notFoundErr).
+			Times(1)
+
+		channels, err := getChannelsFromArgs(s.client, []string{notFoundChannel})
+		s.Require().Empty(channels)
+		s.Require().NotNil(err)
+		s.Require().EqualError(err, fmt.Sprintf("1 error occurred:\n\t* channel %s not found\n\n", notFoundChannel))
+	})
+	s.Run("bad request", func() {
+		badRequestChannel := "badrequest"
+		badRequestErr := errors.New("channel bad request")
+
+		s.client.
+			EXPECT().
+			GetChannel(badRequestChannel, "").
+			Return(nil, &model.Response{StatusCode: http.StatusBadRequest}, badRequestErr).
+			Times(1)
+
+		channels, err := getChannelsFromArgs(s.client, []string{badRequestChannel})
+		s.Require().Empty(channels)
+		s.Require().NotNil(err)
+		s.Require().EqualError(err, fmt.Sprintf("1 error occurred:\n\t* channel %s not found\n\n", badRequestChannel))
+	})
+	s.Run("forbidden", func() {
+		forbidden := "forbidden"
+		forbiddenErr := errors.New("channel forbidden")
+
+		s.client.
+			EXPECT().
+			GetChannel(forbidden, "").
+			Return(nil, &model.Response{StatusCode: http.StatusForbidden}, forbiddenErr).
+			Times(1)
+
+		channels, err := getChannelsFromArgs(s.client, []string{forbidden})
+		s.Require().Empty(channels)
+		s.Require().NotNil(err)
+		s.Require().EqualError(err, "1 error occurred:\n\t* channel forbidden\n\n")
+	})
+	s.Run("internal server error", func() {
+		errChannel := "internalServerError"
+		internalServerErrorErr := errors.New("channel internalServerError")
+
+		s.client.
+			EXPECT().
+			GetChannel(errChannel, "").
+			Return(nil, &model.Response{StatusCode: http.StatusInternalServerError}, internalServerErrorErr).
+			Times(1)
+
+		channels, err := getChannelsFromArgs(s.client, []string{errChannel})
+		s.Require().Empty(channels)
+		s.Require().NotNil(err)
+		s.Require().EqualError(err, "1 error occurred:\n\t* channel internalServerError\n\n")
+	})
+	s.Run("success", func() {
+		successID := "success"
+		successChannel := &model.Channel{Id: successID}
+
+		s.client.
+			EXPECT().
+			GetChannel(successID, "").
+			Return(successChannel, nil, nil).
+			Times(1)
+
+		channels, summary := getChannelsFromArgs(s.client, []string{successID})
+		s.Require().Nil(summary)
+		s.Require().Len(channels, 1)
+		s.Require().Equal(successChannel, channels[0])
+	})
+
+	s.Run("success with team on channel", func() {
+		channelID := "success"
+		teamID := "myTeamID"
+		successTeam := &model.Team{Id: teamID}
+		successChannel := &model.Channel{Id: channelID}
+
+		s.client.
+			EXPECT().
+			GetTeam(teamID, "").
+			Return(successTeam, nil, nil).
+			Times(1)
+		s.client.
+			EXPECT().
+			GetChannelByNameIncludeDeleted(channelID, teamID, "").
+			Return(successChannel, nil, nil).
+			Times(1)
+
+		channels, summary := getChannelsFromArgs(s.client, []string{fmt.Sprintf("%v:%v", teamID, channelID)})
+		s.Require().Nil(summary)
+		s.Require().Len(channels, 1)
+		s.Require().Equal(successChannel, channels[0])
+	})
+}