A little database.yml hack to get git-branch-specific databases. As a prereq you need the git-branch.bash script that will define parse_git_branch which returns your current git branch (found elsewhere).

branch_specific_db.yaml

<%
  db_name = nil
  if ENV['SPECIFIC_DB']
    db_name = ENV['SPECIFIC_DB'].strip
  else
    cur_branch = `source ~/bin/git-branch.bash; parse_git_branch`.strip
    db_name = cur_branch
  end
  db_name = db_name.gsub(/[\/\.]/,'_')
  test_db    = db_name + '_test' + ENV['TEST_ENV_NUMBER'].to_s
  dev_db     = db_name.strip
  puts "Test database: #{test_db}"
  puts "Development database: #{dev_db}"
%>
common: &common
  adapter: mysql2
  encoding: utf8
  database: desk
  username: root
  password:
  host: localhost
  pool: 20
  socket: /tmp/mysql.sock

development:
  <<: *common
  database: <%= dev_db %>
  reconnect: true

test:
  <<: *common
  database: <%= test_db %>
  reconnect: true

production:
  <<: *common

production_jobs:
  <<: *common

production_reporting_v1:
  <<: *common