// Copyright 2020 The Jujutsu Authors//// 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//// https://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. use std::io::Write as _; use jj_lib::file_util;use tracing::instrument; use crate::cli_util::CommandHelper;use crate::command_error::user_error;use crate::command_error::CommandError;use crate::ui::Ui; /// Show the current workspace root directory#[derive(clap::Args, Clone, Debug)]pub struct WorkspaceRootArgs {} #[instrument(skip_all)]pub fn cmd_workspace_root(    ui: &mut Ui,    command: &CommandHelper,    _args: &WorkspaceRootArgs,) -> Result<(), CommandError> {    let loader = command.workspace_loader()?;    let path_bytes = file_util::path_to_bytes(loader.workspace_root()).map_err(user_error)?;    ui.stdout().write_all(path_bytes)?;    writeln!(ui.stdout())?;    Ok(())}