minitest-rg changes the colour of the output from Minitest.

Delayed_job (or DJ) encapsulates the common pattern of asynchronously executing longer tasks in the background. It is a direct extraction from Shopify where the job table is responsible for a multitude of core tasks.

This package provides a set of parsers for Accept and Accept-Language HTTP headers.

shoulda-context is the context framework extracted from Shoulda. Instead of writing Ruby methods with lots_of_underscores, shoulda-context adds context, setup, and should blocks combine to produce natural test method names.

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.

Mustache is a framework-agnostic way to render logic-free views. Think of Mustache as a replacement for your views. Instead of views consisting of ERB or HAML with random helpers and arbitrary logic, your views are broken into two parts: a Ruby class and an HTML template.

The rubyzip module provides ways to read from and create zip files.

The options library helps with parsing keyword options in Ruby functions.

The thread_safe library provides thread-safe collections and utilities for Ruby.

This gem makes mathematical operations more precise in Ruby and integrates other mathematical standard libraries. Prior to Ruby 2.5, mathn was part of the Ruby standard library.

This package provides localhost, a Ruby library for Managing a local certificate authority for self-signed, localhost development servers.

Spy is a mocking library. By default, it will raise an error if you attempt to stub a method that doesn't exist or call the stubbed method with the wrong arity.

This library makes it easier to discover the truth values of various Ruby objects.

Reline is a pure Ruby alternative GNU Readline or Editline implementation.

fog is a Ruby cloud services library. This package provides shared classes and tests for fog providers and services.

This package provides a simple block-driven assertion library for both testing and for production code that attempts to make test definitions more readable.

YARD is a documentation generation tool for the Ruby programming language. It enables the user to generate consistent, usable documentation that can be exported to a number of formats very easily, and also supports extending for custom Ruby constructs such as custom class level definitions.

Mercenary is a lightweight and flexible library for writing command-line apps in Ruby.

This package provides a gem to convert LaTeX input to Unicode. Its original use was as an input filter for BibTeX-Ruby, but it can be used independently to decode LaTeX. Many of the patterns used by this Ruby gem are based on François Charette's equivalent Perl module LaTeX::Decode.

These Ruby bindings are not intended to be directly used, but rather used by higher level bindings like those provided by CZTop.

PandocRuby is a wrapper for Pandoc, a Haskell library with command line tools for converting one markup format to another. Pandoc can convert documents from a variety of formats including markdown, reStructuredText, textile, HTML, DocBook, LaTeX, and MediaWiki markup to a variety of other formats, including markdown, reStructuredText, HTML, LaTeX, ConTeXt, PDF, RTF, DocBook XML, OpenDocument XML, ODT, GNU Texinfo, MediaWiki markup, groff man pages, HTML slide shows, EPUB, Microsoft Word docx, and more.

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.

This gem removes common margin from indented strings, such as the ones produced by indented heredocs. In other words, it strips out leading whitespace chars at the beginning of each line, but only as much as the line with the smallest margin.

It is acknowledged that many strings defined by heredocs are just code and fact is that most parsers are insensitive to indentation. If, however, the strings are to be used otherwise, be it for printing or testing, the extra indentation will probably be an issue and hence this gem.

Solargraph provides a comprehensive suite of tools for Ruby programming: intellisense, diagnostics, inline documentation, and type checking.