symlink_example.rb

namespace :assets do
	task :symlink, :roles => :app do
  	assets.create_dirs
  	run <<-CMD
    	rm -rf #{release_path}/index &&
    	rm -rf #{release_path}/public/images/pictures &&
    	ln -nfs #{shared_path}/index #{release_path}/index &&
    	ln -nfs #{shared_path}/pictures #{release_path}/public/images/pictures
  	CMD
  end 
	
	task :create_dirs, :roles => :app do 
	  %w(index pictures).each do |name| 
	    run "mkdir -p #{shared_path}/#{name}" 
	  end 
	end 
end 

after "deploy:update_code", "assets:symlink"