# File lib/rubygems/commands/setup_command.rb, line 160 def install_sources say "Installing sources" $: << "lib" require 'rubygems' require 'rubygems/builder' require 'rubygems/installer' require 'rubygems/config_file' Dir.chdir("pkgs/sources") do load "sources.gemspec" spec = Gem.sources_spec gem_file = Gem::Builder.new(spec).build Gem::Installer.new(gem_file).install end end