gistfile1.rb

set :additional_shared_paths, ["public/page_attachments", "public/excel_page_attachments"]

namespace :deploy do
  after "deploy:update_code", "deploy:link_additional_shared_paths"
  desc "Link directories to shared paths if they're in the additional_shared_paths variable"
  task :link_additional_shared_paths do
    additional_shared_paths.each do |path|
      run "ln -nfs #{shared_path}/#{path} #{release_path}/#{path}"    
    end
  end  
end