Allows add or remove icons to unity panel white-list, so that they can be show on unity panel

tray.rb

require 'rubygems'
require 'json'


def save_settings(settings)
  `gsettings set com.canonical.Unity.Panel systray-whitelist "#{settings.to_json.gsub('"', "'")}"`
end


def current_settings
  settings = `gsettings get com.canonical.Unity.Panel systray-whitelist`
  JSON.parse(settings.gsub("'", '"'))
end


command = ARGV.shift

case command
when 'get' then
  puts current_settings

when 'add' then 
  save_settings(current_settings + ARGV)

  puts "Current settings:"
  puts current_settings
when 'remove' then
  save_settings(current_settings - ARGV)

  puts "Current settings:"
  puts current_settings
else
  puts "Unknown command. Available commands are: get, add, remove."
end