DataMapper plugin for writing and specing migrations.
This plugin is drop in replacement for dm-hibernate and allows to switch from dm-hibernate-adapter to any dm-XYZ-adapter based on dm-do-adapter just via the database configuration.
per default specs do not run since you have to have an environment variable 'ADAPTER' set. this API is enforced even by dm-core library which makes it kind of difficult (or too much work to get around this).
run the specs like this $ ADAPTER=sqlite mvn rspec:test
to run specs against dm-hibernate-adapter is not implemented yet.
use dm-hibernate-migrations.gemspec or
$ mvn install
and you will find the gem in target (needs maven3)