use std::{    path::Path,    sync::{Arc, atomic::AtomicUsize},}; use fs::RealFs;use gpui::Application;use worktree::Worktree; fn main() {    let Some(worktree_root_path) = std::env::args().nth(1) else {        println!(            "Missing path to worktree root\nUsage: bench_background_scan PATH_TO_WORKTREE_ROOT"        );        return;    };    let app = Application::headless();     app.run(|cx| {        settings::init(cx);        let fs = Arc::new(RealFs::new(None, cx.background_executor().clone()));         cx.spawn(async move |cx| {            let worktree = Worktree::local(                Path::new(&worktree_root_path),                true,                fs,                Arc::new(AtomicUsize::new(0)),                true,                cx,            )            .await            .expect("Worktree initialization to succeed");            let did_finish_scan = worktree                .update(cx, |this, _| this.as_local().unwrap().scan_complete())                .unwrap();            let start = std::time::Instant::now();            did_finish_scan.await;            let elapsed = start.elapsed();            let (files, directories) = worktree                .read_with(cx, |this, _| (this.file_count(), this.dir_count()))                .unwrap();            println!(                "{:?} for {directories} directories and {files} files",                elapsed            );            cx.update(|cx| {                cx.quit();            })        })        .detach();    })}