swift-cli-apps

What problem does it solve?

Provides clear patterns and practical examples to quickly build reliable Swift command-line tools, handle argument parsing, async operations, terminal I/O, and create interactive terminal UIs so developers avoid repetitive mistakes and fragile implementations.

Core Features & Use Cases

• Argument parsing and subcommands with ArgumentParser (ParsableCommand and AsyncParsableCommand) for single-file utilities and git-style multi-command tools.
• Asynchronous networking and file I/O examples for fetchers and data processors, plus stdin/stdout/stderr handling and signal cleanup for long-running tasks.
• Terminal UI guidance using SwifTeaUI for interactive TUIs (forms, tables, spinners), packaging and distribution patterns including SwiftPM executables and Homebrew formulae.
• Real-world use cases: a JSON-fetching CLI that outputs machine-readable data, an interactive TUI for browsing logs, and installable developer tools distributed via Homebrew.

Quick Start

Create a Swift command-line tool that uses ArgumentParser to accept a URL, asynchronously fetches JSON, and prints structured JSON to stdout for scripting.