Yamdi is a ruby wrapper around the command line tool yamdi (github.com/ioppermann/yamdi). You'll need yamdi installed in order for the gem to be of any use. If you are on OSX I recommend using homebrew (brew install yamdi).

assist design and maintenance

A simple module that lets you write sql with yaml

Gem yaml_adapter provides functionality based on ActiveRecord for group of YAML files.

Validate YAML files according to a set of rules.

Dead simple .yml/.yaml checker.

Utility for easily loading YAML files as configuration objects

YAML file based configuration object with an EASY interface

This gem reads and manage YAML config files

YAML Configuration File generator for Rails 3

Parse a number of yaml config files, building one config object. Multiple keys can be specified to choose which part of the file to load

Convert name and surname to yaml file

Convert YAML to segments and back

Create yaml file from array, hash, and json. This gem not use yaml lib.

Dumps anonymized database contents to .yml files

Shows the difference yaml keys

check duplidate in yaml file

Simple authorization library for Ruby on Rails in which permissions are stored in YAML files.

Custom YAML tag for referring environment variables in YAML files

A small library which injects CRUD functionalities to your Plain Old Ruby Objects and store data in a YAML file