config

Configuration types and config-file I/O.

Tutorial overview

This module defines the persistent configuration for the CLI, stored at ~/.config/g/config.toml. It uses serde and toml to map Rust structs directly to a human-readable file format, and provides helper functions for locating, loading, saving, and bootstrapping the config.

Rust concepts used here

• #[derive(Serialize, Deserialize)] automatically generates TOML conversion code at compile time — no manual parsing needed.
• HashMap<String, String> for dynamic key-value storage (git aliases).
• The [Default] trait gives every config section a sensible baseline so users only need to override what they care about.
• fs::create_dir_all and fs::write for managing the local filesystem.
• anyhow::Context attaches a human-readable message to any Result error, making it much easier to diagnose file I/O failures.

Source: src/config/mod.rs