gistfile1.rb

databases             =>  {
                                  'default'      =>
                                    {
                                      'ENGINE'   => 'postgresql_psycopg2',
                                      'NAME'     => 'defaultdb',
                                      'HOST'     => '2.2.2.2.2',
                                      'USER'     => 'username',
                                      'PASSWORD' => 'secretinfo',
                                      'OPTIONS'  =>
                                        {
                                          'sslmode' => 'require',
                                          'otheroption'  => 'yep'
                                        }
                                    },
                                  'db2'          =>
                                    {
                                      'ENGINE'   => 'postgresql_psycopg2',
                                      'NAME'     => 'db2',
                                      'HOST'     => '1.1.1.1',
                                      'USER'     => 'db2user',
                                      'PASSWORD' => 'extrasecretinfo',
                                      'OPTIONS'  => 
                                        {
                                          'foo'  => 'bar',
                                          'bar'  => 'foo',
                                        }
                                    }
                                },



template
-------------
DATABASES = {
<% databases.keys.sort.each do |key| -%>
    '<%= key %>': {
<% databases[key].keys.sort.each do |param| -%>
<% if param !='OPTIONS' -%>
        '<%= param %>':  '<%= databases[key][param] %>',
<% end -%>
<% end -%>
<% if databases[key].has_key?("OPTIONS") -%>
        'OPTIONS': {
<% databases[key]["OPTIONS"].keys.sort.each do |opts| -%>
            '<%= opts %>':  '<%= databases[key]["OPTIONS"][opts] %>',
<% end -%>
        }
<% end -%>
    }
<% end -%>
}