class Bundler::Source::Git

def to_s
  at = if local?
    path
  elsif user_ref = options["ref"]
    if ref =~ /\A[a-z0-9]{4,}\z/i
      shortref_for_display(user_ref)
    else
      user_ref
    end
  else
    ref
  end
  rev = begin
          "@#{shortref_for_display(revision)}"
        rescue GitError
          nil
        end
  "#{@safe_uri} (at #{at}#{rev})"
end