minimal tddium setup for multiple database connections

database.tddium.yml

foo: &foo
adapter: <%= ENV['TDDIUM_DB_ADAPTER'] %>
database: <%= ENV['TDDIUM_DB_NAME'] %>
username: <%= ENV['TDDIUM_DB_USER'] %>
password: <%= ENV['TDDIUM_DB_PASSWORD'] %>
<%= "socket: #{ENV['TDDIUM_DB_SOCKET']}" if ENV['TDDIUM_DB_SOCKET'] %>

development: &development
adapter: <%= ENV['TDDIUM_DB_ADAPTER'] %>
database: <%= ENV['TDDIUM_DB_NAME'] %>
username: <%= ENV['TDDIUM_DB_USER'] %>
password: <%= ENV['TDDIUM_DB_PASSWORD'] %>
<%= "socket: #{ENV['TDDIUM_DB_SOCKET']}" if ENV['TDDIUM_DB_SOCKET'] %>

test: &test
adapter: <%= ENV['TDDIUM_DB_ADAPTER'] %>
database: <%= ENV['TDDIUM_DB_NAME'] %>
username: <%= ENV['TDDIUM_DB_USER'] %>
password: <%= ENV['TDDIUM_DB_PASSWORD'] %>
<%= "socket: #{ENV['TDDIUM_DB_SOCKET']}" if ENV['TDDIUM_DB_SOCKET'] %>

tddium.rake

namespace :tddium do
  desc "tddium environment db setup task"
  task :db_hook do
    system("cd config && cp database.tddium.yml database.yml")
    Rake::Task["db:create:all"].invoke
    if File.exists?(File.join(Rails.root, "db", "schema.rb"))
      Rake::Task['db:schema:load'].invoke
    else
      Rake::Task['db:migrate'].invoke
    end
  end
end