[MM-12365] Create CLI command "team rename" (#9764) (#10083)

Allow renaming teams like in `channel rename` command

Example: `team rename myteam newteamname --display_name "My New Team Name`

cmd/mattermost/commands/team.go

@@ -90,6 +90,16 @@ var RestoreTeamsCmd = &cobra.Command{
 	RunE:    restoreTeamsCmdF,
 }
 
+var TeamRenameCmd = &cobra.Command{
+	Use:   "rename",
+	Short: "Rename a team",
+	Long:  `Rename a team.`,
+	Example: `  team rename myteam newteamname --display_name "My New Team Name"
+	team rename myteam - --display_name "My New Team Name"`,
+	Args: cobra.MinimumNArgs(2),
+	RunE: renameTeamCmdF,
+}
+
 func init() {
 	TeamCreateCmd.Flags().String("name", "", "Team Name")
 	TeamCreateCmd.Flags().String("display_name", "", "Team Display Name")
@@ -98,6 +108,8 @@ func init() {
 
 	DeleteTeamsCmd.Flags().Bool("confirm", false, "Confirm you really want to delete the team and a DB backup has been performed.")
 
+	TeamRenameCmd.Flags().String("display_name", "", "Team Display Name")
+
 	TeamCmd.AddCommand(
 		TeamCreateCmd,
 		RemoveUsersCmd,
@@ -107,6 +119,7 @@ func init() {
 		SearchTeamCmd,
 		ArchiveTeamCmd,
 		RestoreTeamsCmd,
+		TeamRenameCmd,
 	)
 	RootCmd.AddCommand(TeamCmd)
 }
@@ -362,3 +375,38 @@ func archiveTeamCmdF(command *cobra.Command, args []string) error {
 
 	return nil
 }
+
+func renameTeamCmdF(command *cobra.Command, args []string) error {
+
+	a, err := InitDBCommandContextCobra(command)
+	if err != nil {
+		return err
+	}
+	defer a.Shutdown()
+
+	team := getTeamFromTeamArg(a, args[0])
+	if team == nil {
+		return errors.New("Unable to find team '" + args[0] + "'")
+	}
+
+	var newDisplayName, newTeamName string
+
+	newTeamName = args[1]
+
+	// let user use old team Name when only Display Name change is wanted
+	if newTeamName == team.Name {
+		newTeamName = "-"
+	}
+
+	newDisplayName, errdn := command.Flags().GetString("display_name")
+	if errdn != nil {
+		return errdn
+	}
+
+	_, errrt := a.RenameTeam(team, newTeamName, newDisplayName)
+	if errrt != nil {
+		CommandPrintErrorln("Unable to rename team to '"+newTeamName+"' error: ", errrt)
+	}
+
+	return nil
+}

cmd/mattermost/commands/team_test.go

@@ -205,3 +205,70 @@ func TestRestoreTeams(t *testing.T) {
 
 	require.True(t, found)
 }
+
+func TestRenameTeam(t *testing.T) {
+	th := Setup().InitBasic()
+	defer th.TearDown()
+
+	team := th.CreateTeam()
+
+	newTeamName := "newteamnamex3"
+	newDisplayName := "New Display NameX"
+
+	th.CheckCommand(t, "team", "rename", team.Name, newTeamName, "--display_name", newDisplayName)
+
+	// Get the team from the DB
+	updatedTeam, _ := th.App.GetTeam(team.Id)
+
+	if updatedTeam.Name != newTeamName {
+		t.Fatal("failed renaming team")
+	}
+
+	if updatedTeam.DisplayName != newDisplayName {
+		t.Fatal("failed updating team display name")
+	}
+
+	// Try to rename to occupied name
+	team2 := th.CreateTeam()
+	n := team2.Name
+	dn := team2.DisplayName
+
+	th.CheckCommand(t, "team", "rename", team2.Name, newTeamName, "--display_name", newDisplayName)
+
+	// No renaming should have occured
+	if team2.Name != n {
+		t.Fatal("team was renamed when it should have not been")
+	}
+
+	if team2.DisplayName != dn {
+		t.Fatal("team display name was changed when it should have not been")
+	}
+
+	// Try to change only Display Name
+	team3 := th.CreateTeam()
+
+	// trying to change only Display Name (using "-" as a new team name)
+	th.CheckCommand(t, "team", "rename", team3.Name, "-", "--display_name", newDisplayName)
+
+	// Get the team from the DB
+	updatedTeam, _ = th.App.GetTeam(team3.Id)
+
+	if updatedTeam.Name == "-" {
+		t.Fatal("team was renamed to `-` but only display name should have been changed")
+	}
+
+	if updatedTeam.DisplayName != newDisplayName {
+		t.Fatal("team Display Name was not properly updated")
+	}
+
+	// now try to change Display Name using old team name
+	th.CheckCommand(t, "team", "rename", team3.Name, team3.Name, "--display_name", "Brand New DName")
+
+	// Get the team from the DB
+	updatedTeam, _ = th.App.GetTeam(team3.Id)
+
+	if updatedTeam.DisplayName != "Brand New DName" {
+		t.Fatal("team Display Name was not properly updated")
+	}
+
+}