use std::path::Path; pub fn discover(repo: &Path, mut out: impl std::io::Write) -> anyhow::Result<()> {    let mut has_err = false;    writeln!(out, "open (strict) {}:", repo.display())?;    has_err |= print_result(        &mut out,        gix::open_opts(repo, gix::open::Options::default().strict_config(true)),    )?;     if has_err {        writeln!(out, "open (lenient) {}:", repo.display())?;        has_err |= print_result(            &mut out,            gix::open_opts(repo, gix::open::Options::default().strict_config(false)),        )?;    }     writeln!(out)?;    writeln!(out, "discover from {}:", repo.display())?;    has_err |= print_result(&mut out, gix::discover(repo))?;     writeln!(out)?;    writeln!(out, "discover (plumbing) from {}:", repo.display())?;    has_err |= print_result(&mut out, gix::discover::upwards(repo))?;     if has_err {        writeln!(out)?;        anyhow::bail!("At least one operation failed")    }     Ok(())} fn print_result<T, E>(mut out: impl std::io::Write, res: Result<T, E>) -> std::io::Result<bool>where    T: std::fmt::Debug,    E: std::error::Error + Send + Sync + 'static,{    let mut has_err = false;    let to_print = match res {        Ok(good) => {            format!("{good:#?}")        }        Err(err) => {            has_err = true;            format!("{:?}", anyhow::Error::from(err))        }    };    indent(&mut out, to_print)?;    Ok(has_err)} fn indent(mut out: impl std::io::Write, msg: impl Into<String>) -> std::io::Result<()> {    for line in msg.into().lines() {        writeln!(out, "\t{line}")?;    }    Ok(())}