A quick and dirty way to generate random database configuration files for Rails
Can generate randomized database.yml and mongoid.yml configurations. This is especially useful in CI-type environments where you have the same application running multiple times concurrently and you need to make sure they won't clobber each other.
rake entropy:randomize_mysql_config will generate a random config/database.yml for MySQL with entries for development, test, and cucumber. Note that test and cucumber will point to the same database.
rake entropy:randomize_mongoid_config will generate a random config/mongoid.yml for Mongoid with entries for development, test, and cucumber. Note that test and cucumber will point to the same database.
rake entropy:randomize_db_configs will generate both MySQL and Mongoid configurations
You may also specify an environment variable (EXTRA_ENVS) as a comma-separated list of additional environments to alias to the test DB. This is useful for master-slave configurations, etc.
You'll want to make sure that your build scripts call rake db:create:all after running one of the entropy tasks, and that they call rake db:drop:all after running all tests to make sure you don't leave empty databases hanging around.
gem install db-entropy OR add it to your gem bundle
If you're using Rails 2.3, add a “require 'db-entropy/tasks'” line to your Rakefile
(The MIT License)
Copyright © 2010 Jay Zeschin
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