Simple programming language builder inspired by interpreter pattern. You can build your own languages with custom operands and operators for any project purposes.

Create, publish, and maintain jam packages.

Jamnagar is a library for processing content using an petroleum refinement metaphor.

Because sometimes you just need to feed PostgreSQL a lot of data.

Automated visual regression testing on Sauce Labs.

A pure Ruby library to generate SVG images for Japanese bookkeeping.

Japanese calendar utility for Ruby

Utility of Japanese local governments data

Ruby implementation of NodeJS json-api-normalizer

Gem jarvissongbot uses to take user input and transform it into queryable music track found on enabled providers (youtube, spotify), validating it afterwards

Just Another Service Object

Write specifications for the expected json, without writing json

JAT serializer allows you to generate a JSON response based on the fields requested by the client. Besides, it helps to preload relations to avoid N+1 when used with activerecord.

This gem converts a Journal Publishing Tag Set (Jats) XML file into a ruby hash compatible with the Lens document format

Provides a set of utilities for use in Cloud Foundry Java buildpacks

This gem is designed to provide a Ruby interface to the Gitolite Git backend system. This gem aims to provide all management functionality that is available via the gitolite-admin repository (like SSH keys, repository permissions, etc)

Generates RSpecs for jbuilder templates

JDBC meets JRuby

This is improved from rails-settings, added caching. Settings plugin for Rails that makes managing a table of global key, value pairs easy. Think of it like a global Hash stored in you database, that uses simple ActiveRecord like methods for manipulation. Keep track of any global sett...

Useful tools for Rails.