GLI 2.0 is out! GLI is the best way to make a “command-suite” command line interface. If you need to make a complex command line app that takes subcommands, like git or gem, GLI is the most powerful and easy-to-use way to do that.

Unlike thor or trollop, GLI sits on top of OptionParser, giving you access to its powerful features. GLI-powered apps have fully-featured help systems - you just need to provide a bit of documentation. There’s also support for a basic application lifecycle and with almost no code, you have an awesome, well-behaved command-line app that’s easy to write, easy to test, easy to use, and easy to maintain.

New Features

• Arbitrarily deep sub- and sub-sub-commands. Think git remote add.
• Uses OptionParser, meaning your command-line options can benefit from type conversions, validation checks, negatability, and all the other awesome that comes from OptionParser.
• Whole new help system that shows command-line invocation examples, generated from your code.
• Bootstrapped apps now include an .rvmrc and a shell for acceptance testing via aruba.
• More flexible documentation-generation systems to allow any format of documentation to be generated (currently, only RDoc is implemented).
• More easily structure your code in external files
• Lots of bug-fixes

Get Started

> gem install gli
> gli init your-new-app

Learn More

• Walkthrough of GLI’s features at a more detailed level
• A more sophisticated application with annotated source
• Source code on Github
• API Documentation
• Buy the book - One of the running examples uses GLI, and the examples should all work with 2.0