Dotenv is a Ruby library for setting environment variables defined in a .env file.

This package provides a parser for Ruby source code, written in C.

Aruba is an extension for Cucumber, RSpec and Minitest for testing command-line applications. It supports applications written in any language.

Spectroscope is a Behavior-Driven Development (BDD) framework built on RubyTest, designed to emulate RSpec in most respects. It is assertion framework independent so any number of assertion systems can be used, such as Assay or AE.

Samovar is a modern framework for building command-line tools and applications. It provides a declarative class-based DSL for building command-line parsers that include automatic documentation generation. It helps you keep your functionality clean and isolated where possible.

The concurrent-ruby-edge gem includes concurrent-ruby features that are under active development and may change frequently. They are expected not to keep backward compatibility (there may also lack tests and documentation), although semantic versions are obeyed though. Features developed in concurrent-ruby-edge are expected to move to concurrent-ruby when final.

This package provides a command line interface for running for Rack applications.

This package provides a gem that calculates the exchange rate using published rates from open-exchange-rates. Compatible with the money gem.

Comprehensive and flexible logging library written in Ruby for use in Ruby programs. It features a hierarchical logging system of any number of levels, custom level names, logger inheritance, multiple output destinations per log event, execution tracing, custom formatting, thread safteyness, XML and YAML configuration, and more.

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 package provides a RBTree is a sorted associative collection that is implemented with a Red-Black Tree. It maps keys to values like a Hash, but maintains its elements in ascending key order. The interface is the almost identical to that of Hash.

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

Sass is a CSS extension language. It extends CSS with features that don't exist yet like variables, nesting, mixins and inheritance.

This package provides telnet client functionality.

This library provides the functionality to create, modify, and delete boxes, versions, and providers on HashiCorp's Vagrant Cloud.

This package provides a small C extension to speed up variable length integers (varint) in Ruby Protocol Buffers.

Multipart-Post Adds multipart POST capability to Ruby's net/http library.

The ruby_memcheck gem provides a sane way to use Valgrind's memcheck on your native extension gem, that filters out all the false positives caused by Ruby not freeing all of the memory it allocates during shutdown.

Optimized XML (Ox) is a fast XML parser and object serializer for Ruby written as a native C extension. It was designed to be an alternative to Nokogiri and other Ruby XML parsers for generic XML parsing and as an alternative to Marshal for Object serialization.

VersionGem aims to provide introspection of a Version module based on a Version::VERSION constant string wile not interfering with gemspec parsing where the VERSION string is traditionally used.

Packnga is a library to translate to many languages using YARD.

Asciidoctor PDF is an extension for Asciidoctor that converts AsciiDoc documents to Portable Document Format (PDF) using the Prawn PDF library. It has features such as:

• Direct AsciiDoc to PDF conversion

• Configuration-driven theme (style and layout)

• Scalable Vector Graphics (SVG) support

• PDF document outline (i.e., bookmarks)

• Table of contents page(s)

• Document metadata (title, authors, subject, keywords, etc.)

• Internal cross reference links

• Syntax highlighting with Rouge, Pygments, or CodeRay

• Page numbering

• Customizable running content (header and footer)

• “Keep together” blocks (i.e., page breaks avoided in certain block content)

• Orphaned section titles avoided

• Autofit verbatim blocks (as permitted by base_font_size_min setting)

• Table border settings honored

• Font-based icons

• Custom TrueType (TTF) fonts

• Double-sided printing mode (margins alternate on recto and verso pages)

EDTF-Ruby provides a parser and an API for the EDTF standard, implemented as an extension to Ruby's Date class.

This package provides a Jekyll plugin to add metadata tags for search engines and social networks to better index and display your site's content.