rust: Add Repo::dirstate_map and use it in `rhg status`
This moves low-level dirstate wrangling out of the status command and into
a more reusable location.
The open dirstate map is lazily initialized and kept on the Repo object,
for reuse by sub-sequent calls.
Differential Revision: https://phab.mercurial-scm.org/D11398
// config.rs
//
// Copyright 2020
// Valentin Gatien-Baron,
// Raphaël Gomès <rgomes@octobus.net>
//
// This software may be used and distributed according to the terms of the
// GNU General Public License version 2 or any later version.
//! Mercurial config parsing and interfaces.
mod config;
mod layer;
mod values;
pub use config::{Config, ConfigSource, ConfigValueParseError};
pub use layer::{ConfigError, ConfigParseError};