Rack::Mount supports Rack's X-Cascade convention to continue trying routes if the response returns pass. This allows multiple routes to be nested or stacked on top of each other.

HighLine provides a high-level IO library that provides validation, type conversion, and more for command-line interfaces. HighLine also includes a menu system for providing multiple options to the user.

The sys-uname library provides an interface for gathering information about your current platform. It allows retrieving information such as the OS name, OS version, system name, etc.

This Gem provides a common layer for serverspec and itamae.

Roda is a routing tree web toolkit, designed for building fast and maintainable web applications in ruby.

ruby-unf is a wrapper library to bring Unicode Normalization Form support to both Ruby and JRuby. It uses unf_ext on CRuby and java.text.Normalizer on JRuby.

The Stud Ruby library adds a few things missing from the standard Ruby library such as:

Stud::Try

Retry on failure, with back-off, where failure is any exception.

Stud::Pool

Generic resource pools.

Stud::Task

Tasks (threads that can return values, exceptions, etc.)

Stud.interval

Interval execution (do X every N seconds).

Stud::Buffer

Batch and flush behavior.

This library provides Ruby with an interface for validating JSON objects against a JSON schema conforming to JSON Schema Draft 4. Legacy support for JSON Schema Draft 3, JSON Schema Draft 2, and JSON Schema Draft 1 is also included.

This library uses the output of the ps command to create a process tree data structure for the current host.

RDoc produces HTML and command-line documentation for Ruby projects. RDoc includes the +rdoc+ and +ri+ tools for generating and displaying documentation from the command-line.

The sexp_processor package is derived from ParseTree, but contrary to ParseTree, it includes all the generic S-exp processing tools. Amongst the included tools are Sexp, SexpProcessor and Environment

Nori is a simple XML parsing ripped from Crack which in-turn ripped from Merb. It supports pluggable parsers and ships with both REXML and Nokogiri implementations.

ruby_engine provides an RubyEngine class that can be used to check which implementation of Ruby is in use. It can provide the interpreter name and provides query methods such as RubyEngine.mri?.

ValueSemantics generates modules that provide conventional value semantics for a given set of attributes. The behaviour is similar to an immutable Struct class, plus extensible, lightweight validation and coercion.

This package provides a class to deal with collections of unordered, unique values

This package provides a RuboCop plugin for Rake.

websocket-driver provides a complete implementation of the WebSocket protocols that can be hooked up to any TCP library

Record your test suite's HTTP interactions and replay them during future test runs for fast, deterministic, accurate tests. This is an older version of VCR that is free software under the Expat license. The project later switched to the Hippocratic license, which is non-free. Do not use it in new free software projects.

Cane fails your build if code quality thresholds are not met.

Creole is a lightweight markup language and this library for converting creole to HTML.

CZMQ Ruby bindings, based on the generated low-level FFI bindings of CZMQ. The focus of of CZTop is on being easy to use and providing first class support for security mechanisms.

This Ruby library provides an abstract interface for network clients.

This package provides a collection of RuboCop cops to check for downstream compatibility issues in the Ruby code.

Assertive Expressive (AE) is an assertions library specifically designed for reuse by other test frameworks.