Example database.yml that has different database per git branch

database.sample.yml

development:
  adapter: postgresql
  <% if `git symbolic-ref HEAD 2>/dev/null`.chomp.sub('refs/heads/', '').gsub(/\W/, '_') =~ /hotfix|release/ %>
  database: YOUR_APP_NAME_HERE_development_master                                                                                                                                                                            <% else %>
  database: YOUR_APP_NAME_HERE_development_<%= `git symbolic-ref HEAD 2>/dev/null`.chomp.sub('refs/heads/', '').gsub(/\W/, '_')[0..20] %>                                                                                    <% end %>
  pool: 5
  timeout: 5000
  host: localhost

test:
  adapter: postgresql
  <% if `git symbolic-ref HEAD 2>/dev/null`.chomp.sub('refs/heads/', '').gsub(/\W/, '_') =~ /hotfix|release/ %>
  database: YOUR_APP_NAME_HERE_test_master
  <% else %>
  database: YOUR_APP_NAME_HERE_test_<%= `git symbolic-ref HEAD 2>/dev/null`.chomp.sub('refs/heads/', '').gsub(/\W/, '_')[0..20] %>
  <% end %>
  pool: 5
  timeout: 5000
  host: localhost