// 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::io::Write as _; use jj_cli::cli_util::CliRunner;use jj_cli::command_error::CommandError;use jj_cli::ui::Ui; #[derive(clap::Args, Clone, Debug)]struct CustomGlobalArgs {    /// Show a greeting before each command    #[arg(long, global = true)]    greet: bool,} fn process_before(ui: &mut Ui, custom_global_args: CustomGlobalArgs) -> Result<(), CommandError> {    if custom_global_args.greet {        writeln!(ui.stdout(), "Hello!")?;    }    Ok(())} fn main() -> std::process::ExitCode {    CliRunner::init().add_global_args(process_before).run()}