google/argh

Health v2 · maintenance only

Adoption not part of the score

1950 stars · 102 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Argh is a Rust derive-based command-line argument parsing library optimized for code size, built around the FromArgs derive macro and from_env function. It supports switches, options, subcommands, and default values while conforming to the Fuchsia commandline tools specification.

Use cases

• parse command-line arguments in a Rust CLI
• define CLI flags and options with derive macros
• build small binaries with minimal code size overhead
• add subcommands to a Rust command-line tool
• generate --help usage output automatically

When to choose

• you want a lightweight argument parser with small binary size
• you prefer derive-based declarative CLI definitions in Rust
• you need Fuchsia commandline tools spec conformance

When to avoid

• you need highly customizable or non-standard CLI behaviors
• you want extensive features like shell completion generation or colored help
• your project is not written in Rust

Facets

library · maturity active

cli parser developer-tools developer-tools programming-languages rust cross-platform cli argument-parsing derive-macros subcommands code-size-optimized fuchsia command-line

Member repositories

For agents

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