middleman--middleman/lib/middleman/template/init.rbt

<% if css_dir %>set :css_dir, "<%= css_dir -%>"<% end %>
<% if js_dir %>set :js_dir, "<%= js_dir -%>"<% end %>
<% if images_dir %>set :images_dir, "<%= images_dir -%>"<% end %>

# Helpers
helpers do
  def some_helper(*args)
    "Helping"
  end
end

# Automatic sitemaps
# enable :slickmap

# Automatic image dimension calculations
# enable :automatic_image_sizes

# Build-specific configuration
configure :build do
  # For example, change the Compass output style for deployment
  # enable :minify_css
  
  # Minify Javascript on build
  # enable :minify_javascript
  
  # Shrink/smush PNG/JPEGs on build
  # enable :smush_pngs
  
  # Or use a different image path
  # set :http_path, "/Content/images/"
  
  # Disable cache buster
  # disable :cache_buster
end