# File lib/bundler/source/git.rb, line 153 def install(spec) debug = nil if requires_checkout? && !@copied debug = " * Checking out revision: #{ref}" git_proxy.copy_to(install_path, submodules) serialize_gemspecs_in(install_path) @copied = true end generate_bin(spec) ["Using #{spec.name} (#{spec.version}) from #{to_s}", nil, debug] end