minifind 0.10.1

minimal find reimplementation
Documentation 
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// SPDX-FileCopyrightText: 2022 Dinko Korunic <dinko.korunic@gmail.com>
// SPDX-License-Identifier: MIT

use anyhow::Error;
use mimalloc::MiMalloc;
use std::io;
use std::thread;

use minifind::args::Args;

#[global_allocator]
static GLOBAL: MiMalloc = MiMalloc;

/// Binary entry point: wires parsed CLI args into the library pipeline.
fn main() -> Result<(), Error> {
    let args = Args::parse();

    // honor the requested thread count, but warn past the core count
    let available =
        thread::available_parallelism().map(|n| n.get()).unwrap_or(2);
    if let Some(w) =
        minifind::args::oversubscription_warning(args.threads, available)
    {
        eprintln!("minifind: {w}");
    }

    minifind::interrupt::reset_sigpipe();

    // give the fd-anchored walker headroom for its pinned-parent-fd frontier
    #[cfg(unix)]
    let _ = minifind::raise_nofile_limit();

    // process-wide nice +19; SCHED_IDLE is applied per worker in run()
    #[cfg(target_os = "linux")]
    if args.idle {
        if let Err(e) = minifind::sched::lower_nice() {
            eprintln!("minifind: could not lower process priority: {e}");
        }
    }

    // defer locking stdout to the output thread (StdoutLock is not Send)
    minifind::run(&args, || io::stdout().lock())
}