class Bundler::Env

def report(options = {})
  print_gemfile = options.delete(:print_gemfile)
  out = "Environment\n\n"
  out << "    Bundler   #{Bundler::VERSION}\n"
  out << "    Rubygems  #{Gem::VERSION}\n"
  out << "    Ruby      #{ruby_version}"
  out << "    GEM_HOME  #{ENV['GEM_HOME']}\n" unless ENV['GEM_HOME'].nil? || ENV['GEM_HOME'].empty?
  out << "    GEM_PATH  #{ENV['GEM_PATH']}\n" unless ENV['GEM_PATH'] == ENV['GEM_HOME']
  out << "    RVM       #{ENV['rvm_version']}\n" if ENV['rvm_version']
  out << "    Git       #{git_version}\n"
  %w(rubygems-bundler open_gem).each do |name|
    specs = Bundler.rubygems.find_name(name)
    out << "    #{name} (#{specs.map(&:version).join(',')})\n" unless specs.empty?
  end
  out << "\nBundler settings\n\n" unless Bundler.settings.all.empty?
  Bundler.settings.all.each do |setting|
    out << "    " << setting << "\n"
    Bundler.settings.pretty_values_for(setting).each do |line|
      out << "      " << line << "\n"
    end
  end
  if print_gemfile
    out << "\nGemfile\n\n"
    out << "    " << read_file(Bundler.default_gemfile).gsub(/\n/, "\n    ") << "\n"
    out << "\n" << "Gemfile.lock\n\n"
    out << "    " << read_file(Bundler.default_lockfile).gsub(/\n/, "\n    ") << "\n"
  end
  out
end