Capistrano (version 2), deploy with Bower. Install into shared directory

deploy.rb

before "bower:install", "bower:symlink"
after  "bower:install", "bower:prune"

before "deploy:assets:precompile", "bower:install"

namespace :bower do
  desc "Symlink shared components to current release"
  task :symlink, roles: :app do
    run "mkdir -p #{shared_path}/components"
    run "ln -nfs #{shared_path}/components #{latest_release}/vendor/assets/components"
  end

  desc "Install the current Bower environment"
  task :install, roles: :app do
    run "cd #{latest_release} && /opt/node/bin/node /opt/node/bin/bower install --production --quiet"
  end

  desc "Uninstalls local extraneous packages"
  task :prune, roles: :app do
    run "cd #{latest_release} && /opt/node/bin/node /opt/node/bin/bower prune"
  end
end