Deferred for Delayer.

Simple presenter allows for a simple way for you to present a model to your views without cluttering up the original model.

A matcher for testing ruby delegation.

ActiveRecord serializer DSL for mapping model attributes and associations. Similar to ActiveModel Serializers with many enhancements including bi-directional support, i.e. deserialization.

DeliverHQ API wrapper

RSpec matchers for testing that ActionMailers deliver_later

Kentico Kontent Delivery SDK for Ruby

Delphix Engine REST API

A REST client for the Deltacloud API

Deltacloud API ruby client.

Democritus is library for building classes from reusable components.

Library for reading metadata from Half-Life demo files

Demultiplex sequences from the Illumina platform.

Denouncer allows you to send notifications with error/exception details using a simple interface. New methods of sending error messages can be implemented using a pre-defined class interface. SMTP and AMQP notification are the first implemented adapters. Denouncer is usable for all ruby applications, Rails is not required. Use denouncer to get informed on error occurences instantly.

Dentaku is a parser and evaluator for mathematical formulas. All credit to Solomon White.

An Injectable Dependency Container implementation for Ruby

A dependency injection framework for Ruby, which allows you to register dependencies and access them anywhere in your program

Using Chef cookbook style and force any script using it to switch to chef even if it is not install. It will install it tho ;)

DeprecateSoft is a lightweight Ruby gem that lets you gracefully deprecate methods in your codebase without breaking functionality. It wraps existing instance or class methods and lets you plug in custom before/after hooks for tracking usage via logging, Redis, DataDog, or any other observability tools. Once you verify in your tracking that a method is no longer called, you can remove it safely from your code base. This is especially useful in large codebases where you want to safely remove legacy methods, but first need insight into whether and where they're still being called. Hooks are configured once globally and apply project-wide. Fully compatible with Rails or plain Ruby applications.

Depth is a utility gem for dealing with nested hashes and arrays