// 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::slice; use clap::ArgGroup;use clap_complete::ArgValueCompleter;use pollster::FutureExt as _;use tracing::instrument; use crate::cli_util::CommandHelper;use crate::cli_util::RevisionArg;use crate::command_error::CommandError;use crate::complete;use crate::diff_util::DiffFormatArgs;use crate::ui::Ui; /// Compare the changes of two commits////// This excludes changes from other commits by temporarily rebasing `--from`/// onto `--to`'s parents. If you wish to compare the same change across/// versions, consider `jj evolog -p` instead.#[derive(clap::Args, Clone, Debug)]#[command(group(ArgGroup::new("to_diff").args(&["from", "to"]).multiple(true).required(true)))]#[command(mut_arg("ignore_all_space", |a| a.short('w')))]#[command(mut_arg("ignore_space_change", |a| a.short('b')))]pub(crate) struct InterdiffArgs {    /// Show changes from this revision    #[arg(        long,        short,        value_name = "REVSET",        add = ArgValueCompleter::new(complete::revset_expression_all),    )]    from: Option<RevisionArg>,    /// Show changes to this revision    #[arg(        long,        short,        value_name = "REVSET",        add = ArgValueCompleter::new(complete::revset_expression_all),    )]    to: Option<RevisionArg>,    /// Restrict the diff to these paths    #[arg(        value_name = "FILESETS",        value_hint = clap::ValueHint::AnyPath,        add = ArgValueCompleter::new(complete::interdiff_files),    )]    paths: Vec<String>,    #[command(flatten)]    format: DiffFormatArgs,} #[instrument(skip_all)]pub(crate) fn cmd_interdiff(    ui: &mut Ui,    command: &CommandHelper,    args: &InterdiffArgs,) -> Result<(), CommandError> {    let workspace_command = command.workspace_helper(ui)?;    let from =        workspace_command.resolve_single_rev(ui, args.from.as_ref().unwrap_or(&RevisionArg::AT))?;    let to =        workspace_command.resolve_single_rev(ui, args.to.as_ref().unwrap_or(&RevisionArg::AT))?;    let matcher = workspace_command        .parse_file_patterns(ui, &args.paths)?        .to_matcher();    let diff_renderer = workspace_command.diff_renderer_for(&args.format)?;    ui.request_pager();    diff_renderer        .show_inter_diff(            ui,            ui.stdout_formatter().as_mut(),            slice::from_ref(&from),            &to,            matcher.as_ref(),            ui.term_width(),        )        .block_on()?;    Ok(())}