How to onboard to ferro-cli

A Rust command-line tool that parses arguments, runs subcommands concurrently with async tasks, and prints structured output, built for speed and reliability.

A CLI where argument parsing, typed error handling with Result, and clear subcommand boundaries define the whole ergonomics of the tool.

First files to read

The fastest way into ferro-cli: read these 4 files first, in order.

1. 1src/main.rsEntry point: parses args and dispatches to a subcommand
2. 2src/cli.rsCommand and flag definitions (clap)
3. 3src/commands/mod.rsSubcommand implementations
4. 4src/error.rsError types and the Result alias

Main systems

Key terms

Result

Rust's type for an operation that can succeed (Ok) or fail (Err).

Crate

A Rust compilation unit and package.

Borrow checker

The compiler pass that enforces memory safety without a garbage collector.

More sample repositories