// 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. //! This file contains the internal implementation of `run`. use crate::cli_util::{resolve_multiple_nonempty_revsets, CommandHelper, RevisionArg};use crate::command_error::{user_error, CommandError};use crate::ui::Ui; /// Run a command across a set of revisions.///////// All recorded state will be persisted in the `.jj` directory, so occasionally/// a `jj run --clean` is needed to clean up disk space.////// # Example////// # Run pre-commit on your local work/// $ jj run 'pre-commit run .github/pre-commit.yaml' -r (trunk()..@) -j 4////// This allows pre-commit integration and other funny stuff.#[derive(clap::Args, Clone, Debug)]#[command(verbatim_doc_comment)]pub struct RunArgs {    /// The command to run across all selected revisions.    shell_command: String,    /// The revisions to change.    #[arg(long, short, default_value = "@")]    revisions: Vec<RevisionArg>,    /// A no-op option to match the interface of `git rebase -x`.    #[arg(short = 'x', hide = true)]    unused_command: bool,    /// How many processes should run in parallel, uses by default all cores.    #[arg(long, short)]    jobs: Option<usize>,} pub fn cmd_run(ui: &mut Ui, command: &CommandHelper, args: &RunArgs) -> Result<(), CommandError> {    let workspace_command = command.workspace_helper(ui)?;    let _resolved_commits = resolve_multiple_nonempty_revsets(&args.revisions, &workspace_command)?;    // Jobs are resolved in this order:    // 1. Commandline argument iff > 0.    // 2. the amount of cores available.    // 3. a single job, if all of the above fails.    let _jobs = match args.jobs {        Some(0) => return Err(user_error("must pass at least one job")),        Some(jobs) => Some(jobs),        None => std::thread::available_parallelism().map(|t| t.into()).ok(),    }    // Fallback to a single user-visible job.    .unwrap_or(1usize);    Err(user_error("This is a stub, do not use"))}