# File lib/heroku/commands/addons.rb, line 71
    def open
      addon = args.shift
      app_addons = heroku.installed_addons(app).map { |a| a["name"] }
      matches = app_addons.select { |a| a =~ /^#{addon}/ }

      case matches.length
      when 0 then
        error "Unknown addon: #{addon}"
      when 1 then
        addon_to_open = matches.first
        display "Opening #{addon_to_open} for #{app}..."
        Launchy.open "https://api.#{heroku.host}/myapps/#{app}/addons/#{addon_to_open}"
      else
        error "Ambiguous addon name: #{addon}"
      end
    end