IO.console adds console capabilities to Ruby IO instances.

Liquid is a template language written in Ruby. It is used to load dynamic content on storefronts.

Ruby/ProgressBar is an flexible text progress bar library for Ruby. The output can be customized with a formatting system.

Net::SCP is a pure-Ruby implementation of the SCP client protocol.

This library provides a high-level API that wraps the ZeroMQ networking library using the Ruby foreign function interface (FFI). It is a pure Ruby wrapper, hence is compatible with any Ruby runtime that has support for FFI.

ChunkyPNG is a pure Ruby library that can read and write Portable Network Graphics (PNG) images without depending on an external image library. It tries to be memory efficient and reasonably fast. It has features such as:

• Decoding support for any image that the PNG standard allows. This includes all standard color modes, all bit depths, all transparency, and interlacing and filtering options.

• Encoding support for images of all color modes (true color, grayscale, and indexed) and transparency for all these color modes. The best color mode is chosen automatically, based on the amount of used colors.

• Read/write access to the image's pixels.

• Read/write access to all image metadata that is stored in chunks.

• Memory efficiency: fixnum are used, i.e. 4 or 8 bytes of memory per pixel, depending on the hardware).

• Performance: ChunkyPNG is reasonably fast for Ruby standards, by only using integer math and a highly optimized saving routine.

• Interoperability with RMagick.

ChunkyPNG is vulnerable to decompression bombs and can run out of memory when loading a specifically crafted PNG file. This is hard to fix in pure Ruby. Deal with untrusted images in a separate process, e.g., by using fork or a background processing library.

This package provides bindings for any kind of Ruby exceptions.

Mail is an internet library for Ruby that is designed to handle email generation, parsing and sending. The purpose of this library is to provide a single point of access to handle all email functions, including sending and receiving emails. All network type actions are done through proxy methods to Net::SMTP, Net::POP3 etc.

Mail has been designed with a very simple object oriented system that really opens up the email messages you are parsing, if you know what you are doing, you can fiddle with every last bit of your email directly.

Em-websocket is an EventMachine based WebSocket server implementation.

This package provides a pure Ruby implementation of the RFC 7519 OAuth JWT standard.

Warden is a Rack-based middleware that provides a mechanism for authentication in Ruby web applications.

Given is an RSpec extension that allows the use of Given/When/Then terminology when defining specifications, in a way similar to the Cucumber Gherkin language.

This Ruby library provides a simple wrapper to bcrypt, a secure hash algorithm for hashing passwords.

Pseudo `IO` class from and to `String`.

This class implements the File Transfer Protocol. If you have used a command-line FTP program, and are familiar with the commands, you will be able to use this class easily. Some extra features are included to take advantage of Ruby's style and strengths.

Maxitest is a wrapper around Minitest with extra functionality such as timeouts, an mtest executable that can run tests by line number, support for interrupted tests, better backtraces, and more.

Yell is a comprehensive logging replacement for Ruby. It defines multiple adapters, various log level combinations and message formatting options.

skiptrace provides a way to access the bindings that relate to exceptions in Ruby, providing more information about the context in which the exception occurred.

This package provides a module for encoding and decoding (X)HTML entities.

jaro_winkler is an implementation of Jaro-Winkler distance algorithm. It is written as a C extension and will fallback to a pure Ruby implementation on platforms where this is unsupported.

With Serverspec, you can write RSpec tests for checking your servers are configured correctly.

Serverspec tests your servers’ actual state by executing command locally, via SSH, via WinRM, via Docker API and so on. So you don’t need to install any agent softwares on your servers and can use any configuration management tools, Puppet, Ansible, CFEngine, Itamae and so on.

But the true aim of Serverspec is to help refactoring infrastructure code.

This package provides a Ruby wrapper for the OAuth 2.0 protocol built with a similar style to the original OAuth spec.

This package provides a Ruby implementation of RFC5869: HKDF. The goal of HKDF is to take some source key material and generate suitable cryptographic keys from it.

Lino provides an interface to run external commands. It provides an interface to add options as well as managing the standard input, output and error streams.