vinnie357 Rust CLI Applications
Argument parsing, user-facing output, exit codes, signal handling, and subprocess testing for command-line tools.
For argument parsing, error context, output, signals, exit codes, and testing patterns, see references/cli.md.
Example
use clap::Parser;
#[derive(Parser)]
struct Cli {
pattern: String,
path: std::path::PathBuf,
}
fn main() {
let cli = Cli::parse(); // derives parsing, validation, and --help
}
The full argument-parsing, error-context, output, signals, exit-code, and testing patterns are in references/cli.md.
This skill covers CLI-specific ecosystem crates. For custom error enum design (thiserror) shared with non-CLI code, see rust:error-handling. For unit and integration test structure not specific to CLI binaries, see rust:testing.
See /core:anti-fabrication — crate versions and behavior claims in this skill are verified against crates.io and the upstream Rust CLI Book, not assumed.