Simple mime type detection using magic numbers, filenames, and extensions

The OS gem allows for some useful and easy functions, like OS.windows? (=> true or false) OS.bits ( => 32 or 64) etc"

Arel Really Exasperates Logicians Arel is a SQL AST manager for Ruby. It 1. Simplifies the generation of complex SQL queries 2. Adapts to various RDBMSes It is intended to be a framework framework; that is, you can build your own ORM with it, focusing on innovative object and collection modeli...

Net::SSH: a pure-Ruby implementation of the SSH2 client protocol. It allows you to write programs that invoke and interact with processes on remote servers, via SSH2.

kaminari-core includes pagination logic independent from ORMs and view libraries

kaminari-activerecord lets your Active Record models be paginatable

kaminari-actionview provides pagination helpers for your Action View templates

Wrap an option at compile-time and `call` it at runtime, which allows to have the common `-> ()`, `:method` or `Callable` pattern used for most options.

Simple, feature rich ascii table generation library

Capistrano is a utility and framework for executing commands in parallel on multiple remote machines, via SSH.

Manipulate images with minimal use of memory via ImageMagick

Test your JavaScript without any framework dependencies, in any environment, and with a nice descriptive syntax. Jasmine for Ruby is deprecated. The direct replacment for the jasmine-core gem is the jasmine-core NPM package. If you are also using the jasmine gem, we recommend using the jasmine-b...

CocoaPods manages library dependencies for your Xcode project. You specify the dependencies for your project in one easy text file. CocoaPods resolves dependencies between libraries, fetches source code for the dependencies, and creates and maintains an Xcode workspace to build your project. Ul...

A generalized Rack framework for multiple-provider authentication.

A secure, non-evaling end user template engine with aesthetic markup.

A modern, highly customizable, and responsive Jekyll theme for documentation with built-in search.

Easy upload management for ActiveRecord

Renders and parses JSON/XML/YAML documents from and to Ruby objects. Includes plain properties, collections, nesting, coercion and more.

Parallel tests across CI server nodes based on each test file's time execution. It generates a test time execution report and uses it for future test runs.

RequestStore gives you per-request global storage.