use crate::error::CommandError;

use crate::ui::Ui;

use clap::ArgMatches;

use format_bytes::format_bytes;

use hg::config::Config;

use hg::repo::Repo;

use hg::utils::files::get_bytes_from_path;

pub const HELP_TEXT: &str = "

Print the root directory of the current repository.

Returns 0 on success.

";

pub fn args() -> clap::App<'static, 'static> {

    clap::SubCommand::with_name("root").about(HELP_TEXT)

}

pub fn run(

    ui: &Ui,

    config: &Config,

    _args: &ArgMatches,

) -> Result<(), CommandError> {

    let bytes = get_bytes_from_path(repo.working_directory_path());

    ui.write_stdout(&format_bytes!(b"{}\n", bytes.as_slice()))?;

    Ok(())

}