Find the exact difference between two Hash objects

Performs pruning or one-level promotion of Hash attributes (typically labeled "private:"), and deep merges and joins of Hash objects. Works on Array objects containing Hash objects as well.

Keep specified associations in sync with ease using async reindexing (searchkick gem is required).

Logging library that provides the ability to add class/module specific filters

HdrHistogram is an algorithm designed for recording histograms of value measurements with configurable precision. Value precision is expressed as the number of significant digits, providing control over value quantization and resolution whilst maintaining a fixed cost in both space and time.

Validates Finnish personal identification numbers (henkilötunnus).

Makes Her aware of APIs that return pagination headers.

A Ruby library for talking to the HMRC Government Gateway. This provides a builder for creating classes that can generate the XML needed complete with type information and runtime validation.

Ruby on Rails view helpers for the beautiful hand-crafted SVG icons, Heroicons.

PG backups into the cloud with fog

Support for deprecating/rotating signed cookie secret tokens in rails. Handles silently accepting cookies signed with different secrets and sending back cookies signed with new secret.

Sends a yo to your yo followers

Downloads .m3u8 playlists and reports back on whether or not the playlists are aligned in time.

Hodmin enables you to administrate your Homie-devices (IOT, esp8266-based microcomputers with Homie-firmware) via command-line-interface. It consists of some scripts to wrap Homie-administration in some handy commands. Hodmin does not communicate with a homie-device directly. It instead uses your MQTT-broker to pass informations to a device.

Generate a Gemfile based on a Hoe spec's declared dependencies.

A ruby module for creating and comparing Texas Holdem poker hands.

Add callbacks to your methods

Track object creation to stamp out pesky leaks.

Ruby Gem used for homograph detection

Hooker provides a simple registry of hooks or extension points, enabling decoupled run time configuration in terse but straight ruby syntax. Inspiration includes Emacs Hook Functions and other ruby-based configuration files.