new

# File lib/rubygems/config_file.rb, line 150
  def initialize(arg_list)
    @config_file_name = nil
    need_config_file_name = false

    arg_list = arg_list.map do |arg|
      if need_config_file_name then
        @config_file_name = arg
        need_config_file_name = false
        nil
      elsif arg =~ /^--config-file=(.*)/ then
        @config_file_name = $1
        nil
      elsif arg =~ /^--config-file$/ then
        need_config_file_name = true
        nil
      else
        arg
      end
    end.compact

    @backtrace = DEFAULT_BACKTRACE
    @benchmark = DEFAULT_BENCHMARK
    @bulk_threshold = DEFAULT_BULK_THRESHOLD
    @verbose = DEFAULT_VERBOSITY
    @update_sources = DEFAULT_UPDATE_SOURCES

    operating_system_config = Marshal.load Marshal.dump(OPERATING_SYSTEM_DEFAULTS)
    platform_config = Marshal.load Marshal.dump(PLATFORM_DEFAULTS)
    system_config = load_file SYSTEM_WIDE_CONFIG_FILE
    user_config = load_file config_file_name.dup.untaint

    @hash = operating_system_config.merge platform_config
    @hash = @hash.merge system_config
    @hash = @hash.merge user_config

    # HACK these override command-line args, which is bad
    @backtrace        = @hash[:backtrace]        if @hash.key? :backtrace
    @benchmark        = @hash[:benchmark]        if @hash.key? :benchmark
    @bulk_threshold   = @hash[:bulk_threshold]   if @hash.key? :bulk_threshold
    @home             = @hash[:gemhome]          if @hash.key? :gemhome
    @path             = @hash[:gempath]          if @hash.key? :gempath
    @update_sources   = @hash[:update_sources]   if @hash.key? :update_sources
    @verbose          = @hash[:verbose]          if @hash.key? :verbose

    load_api_keys

    Gem.sources = @hash[:sources] if @hash.key? :sources
    handle_arguments arg_list
  end