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// 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::default_index::DefaultIndexStore;use pollster::FutureExt as _; use crate::cli_util::CommandHelper;use crate::command_error::CommandError;use crate::command_error::internal_error;use crate::command_error::user_error;use crate::ui::Ui; /// Rebuild commit index#[derive(clap::Args, Clone, Debug)]pub struct DebugReindexArgs {} pub fn cmd_debug_reindex(    ui: &mut Ui,    command: &CommandHelper,    _args: &DebugReindexArgs,) -> Result<(), CommandError> {    // Resolve the operation without loading the repo. The index might have to    // be rebuilt while loading the repo.    let workspace = command.load_workspace()?;    let repo_loader = workspace.repo_loader();    let op = command.resolve_operation(ui, repo_loader)?;    let index_store = repo_loader.index_store();    if let Some(default_index_store) = index_store.downcast_ref::<DefaultIndexStore>() {        default_index_store.reinit().map_err(internal_error)?;        let default_index = default_index_store            .build_index_at_operation(&op, repo_loader.store())            .block_on()            .map_err(internal_error)?;        writeln!(            ui.status(),            "Finished indexing {} commits.",            default_index.num_commits()        )?;    } else {        return Err(user_error(format!(            "Cannot reindex indexes of type '{}'",            index_store.name()        )));    }    Ok(())}