Works with Rails out of the box.

Server-Sent Events via Redis

An implementation of the JSON Schema specification. Provides automatic parsing for any given JSON Schema.

Puppet's accceptance testing harness

pass binding of method caller implicitly

Hosted code coverage Ruby reporter.

In showing a long lists, sometimes one would prefer to see the value arranged aligned in columns. Some examples include listing methods of an object or debugger commands. See Examples in the rdoc documentation for examples.

The complete solution for Ruby command-line executables. Commander bridges the gap between other terminal related libraries you know and love (OptionParser, HighLine), while providing many new features, and an elegant API.

A lightweight library for real-time, consistent and scalable coordination of events.

This library can be used as a module for `fog` or as standalone provider to use vSphere in applications.

Attach comments to your ActiveRecord queries.

A marketing site theme for Jekyll.

Simple and opinionated helper for creating Rubygem projects on GitHub

Lightweight ETL for Ruby

Auto-install phantomjs on demand for current platform. Comes with poltergeist integration.

Modern Kafka client library for Ruby based on librdkafka

Ridgepole is a tool to manage DB schema. It defines DB schema using Rails DSL, and updates DB schema according to DSL.

Generate private/public SSH keypairs using pure Ruby

XML parameters parser for Action Pack (removed from core in Rails 4.0)

Fast mime detection by extension or content in pure ruby (Uses freedesktop.org.xml shared-mime-info database)