// Copyright 2023 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::fmt::Debug;use std::io::Write as _; use jj_lib::backend::TreeId;use jj_lib::merged_tree::MergedTree;use jj_lib::repo::Repo as _;use jj_lib::repo_path::RepoPathBuf; use crate::cli_util::CommandHelper;use crate::cli_util::RevisionArg;use crate::command_error::user_error;use crate::command_error::CommandError;use crate::ui::Ui; /// List the recursive entries of a tree.#[derive(clap::Args, Clone, Debug)]pub struct DebugTreeArgs {    #[arg(long, short = 'r', value_name = "REVSET")]    revision: Option<RevisionArg>,    #[arg(long, conflicts_with = "revision")]    id: Option<String>,    #[arg(long, requires = "id")]    dir: Option<String>,    #[arg(value_name = "FILESETS")]    paths: Vec<String>,    // TODO: Add an option to include trees that are ancestors of the matched paths} pub fn cmd_debug_tree(    ui: &mut Ui,    command: &CommandHelper,    args: &DebugTreeArgs,) -> Result<(), CommandError> {    let workspace_command = command.workspace_helper(ui)?;    let tree = if let Some(tree_id_hex) = &args.id {        let tree_id =            TreeId::try_from_hex(tree_id_hex).ok_or_else(|| user_error("Invalid tree id"))?;        let dir = if let Some(dir_str) = &args.dir {            workspace_command.parse_file_path(dir_str)?        } else {            RepoPathBuf::root()        };        let store = workspace_command.repo().store();        let tree = store.get_tree(dir, &tree_id)?;        MergedTree::resolved(tree)    } else {        let commit = workspace_command            .resolve_single_rev(ui, args.revision.as_ref().unwrap_or(&RevisionArg::AT))?;        commit.tree()?    };    let matcher = workspace_command        .parse_file_patterns(ui, &args.paths)?        .to_matcher();    for (path, value) in tree.entries_matching(matcher.as_ref()) {        let ui_path = workspace_command.format_file_path(&path);        writeln!(ui.stdout(), "{ui_path}: {value:?}")?;    }     Ok(())}