# File lib/bundler/dsl.rb, line 18
    def initialize
      @source               = nil
      @sources              = SourceList.new
      @git_sources          = {}
      @dependencies         = []
      @groups               = []
      @install_conditionals = []
      @optional_groups      = []
      @platforms            = []
      @env                  = nil
      @ruby_version         = nil
      add_git_sources
    end