// Copyright 2024 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 clap_complete::ArgValueCandidates;use itertools::Itertools as _; use super::diff::show_op_diff;use crate::cli_util::CommandHelper;use crate::cli_util::LogContentFormat;use crate::command_error::CommandError;use crate::commit_templater::CommitTemplateLanguage;use crate::complete;use crate::diff_util::diff_formats_for_log;use crate::diff_util::DiffFormatArgs;use crate::diff_util::DiffRenderer;use crate::graphlog::GraphStyle;use crate::ui::Ui; /// Show changes to the repository in an operation#[derive(clap::Args, Clone, Debug)]pub struct OperationShowArgs {    /// Show repository changes in this operation, compared to its parent(s)    #[arg(default_value = "@", add = ArgValueCandidates::new(complete::operations))]    operation: String,    /// Don't show the graph, show a flat list of modified changes    #[arg(long)]    no_graph: bool,    /// Show patch of modifications to changes    ///    /// If the previous version has different parents, it will be temporarily    /// rebased to the parents of the new version, so the diff is not    /// contaminated by unrelated changes.    #[arg(long, short = 'p')]    patch: bool,    #[command(flatten)]    diff_format: DiffFormatArgs,} pub fn cmd_op_show(    ui: &mut Ui,    command: &CommandHelper,    args: &OperationShowArgs,) -> Result<(), CommandError> {    let workspace_command = command.workspace_helper(ui)?;    let workspace_env = workspace_command.env();    let repo_loader = workspace_command.workspace().repo_loader();    let settings = workspace_command.settings();    let op = workspace_command.resolve_single_op(&args.operation)?;    let parents: Vec<_> = op.parents().try_collect()?;    let parent_op = repo_loader.merge_operations(parents, None)?;    let parent_repo = repo_loader.load_at(&parent_op)?;    let repo = repo_loader.load_at(&op)?;     let id_prefix_context = workspace_env.new_id_prefix_context();    let commit_summary_template = {        let language = workspace_env.commit_template_language(repo.as_ref(), &id_prefix_context);        let text = settings.get_string("templates.commit_summary")?;        workspace_env.parse_template(ui, &language, &text, CommitTemplateLanguage::wrap_commit)?    };     let graph_style = GraphStyle::from_settings(settings)?;    let with_content_format = LogContentFormat::new(ui, settings)?;    let diff_renderer = {        let formats = diff_formats_for_log(settings, &args.diff_format, args.patch)?;        let path_converter = workspace_env.path_converter();        let conflict_marker_style = workspace_env.conflict_marker_style();        (!formats.is_empty()).then(|| {            DiffRenderer::new(                repo.as_ref(),                path_converter,                conflict_marker_style,                formats,            )        })    };     // TODO: Should we make this customizable via clap arg?    let template = {        let text = settings.get_string("templates.op_log")?;        workspace_command            .parse_operation_template(ui, &text)?            .labeled("operation")    };     ui.request_pager();    let mut formatter = ui.stdout_formatter();    template.format(&op, formatter.as_mut())?;     show_op_diff(        ui,        formatter.as_mut(),        repo.as_ref(),        &parent_repo,        &repo,        &commit_summary_template,        (!args.no_graph).then_some(graph_style),        &with_content_format,        diff_renderer.as_ref(),    )}