MM-12356 Add cli command "command delete" (#9553)

* Add cli command for deleting commands

* Add code/test for delete command

* Fix test

* Add confirm flag

* Update as per comments

* Uncomment test

* Fix test

app/command.go

@@ -423,10 +423,9 @@ func (a *App) DeleteCommand(commandId string) *model.AppError {
 	if !*a.Config().ServiceSettings.EnableCommands {
 		return model.NewAppError("DeleteCommand", "api.command.disabled.app_error", nil, "", http.StatusNotImplemented)
 	}
-
-	if err := (<-a.Srv.Store.Command().Delete(commandId, model.GetMillis())).Err; err != nil {
-		return err
+	result := <-a.Srv.Store.Command().Delete(commandId, model.GetMillis())
+	if result.Err != nil {
+		return result.Err
 	}
-
 	return nil
 }

cmd/mattermost/commands/command.go

@@ -44,6 +44,15 @@ var CommandListCmd = &cobra.Command{
 	RunE:    listCommandCmdF,
 }
 
+var CommandDeleteCmd = &cobra.Command{
+	Use:     "delete",
+	Short:   "Delete a slash command",
+	Long:    `Delete a slash command. Commands can be specified by command ID.`,
+	Example: `  command delete commandID`,
+	Args:    cobra.MinimumNArgs(1),
+	RunE:    deleteCommandCmdF,
+}
+
 func init() {
 	CommandCreateCmd.Flags().String("title", "", "Command Title")
 	CommandCreateCmd.Flags().String("description", "", "Command Description")
@@ -64,6 +73,7 @@ func init() {
 		CommandCreateCmd,
 		CommandMoveCmd,
 		CommandListCmd,
+		CommandDeleteCmd,
 	)
 	RootCmd.AddCommand(CommandCmd)
 }
@@ -204,3 +214,21 @@ func listCommandCmdF(command *cobra.Command, args []string) error {
 	}
 	return nil
 }
+
+func deleteCommandCmdF(command *cobra.Command, args []string) error {
+	a, err := InitDBCommandContextCobra(command)
+	if err != nil {
+		return err
+	}
+	defer a.Shutdown()
+
+	commandID := args[0]
+
+	deleteErr := a.DeleteCommand(commandID)
+	if deleteErr != nil {
+		CommandPrintErrorln("Unable to delete command '" + commandID + "' error: " + deleteErr.Error())
+		return deleteErr
+	}
+	CommandPrettyPrintln("Deleted command '" + commandID + "'")
+	return nil
+}

cmd/mattermost/commands/command_test.go

@@ -9,6 +9,7 @@ import (
 	"testing"
 
 	"github.com/mattermost/mattermost-server/api4"
+	"github.com/mattermost/mattermost-server/model"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
@@ -126,3 +127,34 @@ func TestCreateCommand(t *testing.T) {
 		})
 	}
 }
+
+func TestDeleteCommand(t *testing.T) {
+	th := api4.Setup().InitBasic()
+	defer th.TearDown()
+	url := "http://localhost:8000/test-command"
+	team := th.BasicTeam
+	user := th.BasicUser
+	th.LinkUserToTeam(user, team)
+
+	// Check the appropriate permissions are enforced.
+	defaultRolePermissions := th.SaveDefaultRolePermissions()
+	defer func() {
+		th.RestoreDefaultRolePermissions(defaultRolePermissions)
+	}()
+	id := model.NewId()
+	c := &model.Command{
+		DisplayName: "dn_" + id,
+		Method:      "G",
+		TeamId:      team.Id,
+		Username:    user.Username,
+		URL:         url,
+		Trigger:     "test",
+	}
+	th.AddPermissionToRole(model.PERMISSION_MANAGE_SLASH_COMMANDS.Id, model.TEAM_USER_ROLE_ID)
+	command, _ := th.Client.CreateCommand(c)
+	commands, _ := th.Client.ListCommands(team.Id, true)
+	assert.Equal(t, len(commands), 1)
+	CheckCommand(t, "command", "delete", command.Id)
+	commands, _ = th.Client.ListCommands(team.Id, true)
+	assert.Equal(t, len(commands), 0)
+}