Build complex rules, serialize them as JSON, and execute them in ruby. See http://jsonlogic.com

Jump consistent hash implementation for Ruby

KPeg is a simple PEG library for Ruby. It provides an API as well as native grammar to build the grammar. KPeg strives to provide a simple, powerful API without being too exotic. KPeg supports direct left recursion of rules via the {OMeta memoization}[http://www.vpri.org/pdf/tr2008003_experimenting.pdf] trick.

Rack middleware to report key app statistics and custom instrumentation to the Librato Metrics service.

Validations mixin for Ruby objects and support for Lotus

autotest is a continous testing facility meant to be used during development. As soon as you save a file, autotest will run the corresponding dependent tests. minitest-autotest is the latest incarnation of the venerable and wise autotest. This time, it talks to minitest via minitest-server. As a result, there is no output parsing. There are no regexps to tweak. There's no cruft or overhead. == Features/Problems: * Continually and intelligently test only those files you change with autotest.

A Ruby DSL builder for OpenSearch

This provides interfaces to various passive DNS databases to do the query and to normalize the responses. The query tool also allows for recursive queries, using an SQLite3 database to keep state.

Phone number parsing, validation and formatting

Rubygems plugin system using Gem.find_files, $LOAD_PATH and $LOADED_FEATURES.

Pub / Sub Library using Amazon Web Services

Querly is a query language and tool to find out method calls from Ruby programs. Define rules to check your program with patterns to find out *bad* pieces. Querly finds out matching pieces from your program.

Rack-Jekyll transforms your Jekyll app into a Rack application.

Rack-based console inside your web applications

Tracks jobs performed, failed, and the duration of the last 100 jobs for each job type.

RGeo is a geospatial data library for Ruby. RGeo::ActiveRecord is an optional RGeo module providing some spatial extensions to ActiveRecord, as well as common tools used by RGeo-based spatial adapters.

Implementation of basic 2D geometry algorithms in Ruby

Ruby-LLVM is a Ruby language binding to the LLVM compiler infrastructure library.

Ruby-LLVM is a Ruby language binding to the LLVM compiler infrastructure library.

Use Valgrind memcheck without going crazy