class Bundler::Settings

def [](key)
  key = "BUNDLE_#{key.to_s.upcase}"
  @config[key] || ENV[key]
end

def []=(key, value)
  key = "BUNDLE_#{key.to_s.upcase}"
  @config[key] = value
  FileUtils.mkdir_p(config_file.dirname)
  File.open(config_file, 'w') do |f|
    f.puts @config.to_yaml
  end
  value
end

def config_file
  Pathname.new("#{@root}/.bundle/config")
end

def initialize(root)
  @root   = root
  @config = File.exist?(config_file) ? YAML.load_file(config_file) : {}
end

def without
  self[:without] ? self[:without].split(":").map { |w| w.to_sym } : []
end

def without=(array)
  self[:without] = array.join(":")
end