annotate rust/hg-core/src/config.rs @ 46598:bc08c2331f99

rust: Add a `ConfigValueParseError` variant to common errors

Configuration files are parsed into sections of key/value pairs when
they are read, but at that point values are still arbitrary bytes.
Only when a value is accessed by various parts of the code do we know
its expected type and syntax, so values are parsed at that point.

Let’s make a new error type for this latter kind of parsing error,
and add a variant to the common `HgError` so that most code can propagate it
without much boilerplate.

Differential Revision: https://phab.mercurial-scm.org/D10009

// config.rs
//
// Copyright 2020
//      Valentin Gatien-Baron,
//      Raphaël Gomès <[e-mail]>
//
// 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;
pub use config::{Config, ConfigValueParseError};
pub use layer::{ConfigError, ConfigParseError};