class Bundler::CLI::Lock

def run
  unless Bundler.default_gemfile
    Bundler.ui.error "Unable to find a Gemfile to lock"
    exit 1
  end
  print = options[:print]
  previous_output_stream = Bundler.ui.output_stream
  Bundler.ui.output_stream = :stderr if print
  Bundler::Fetcher.disable_endpoint = options["full-index"]
  update = options[:update]
  conservative = options[:conservative]
  bundler = options[:bundler]
  if update.is_a?(Array) # unlocking specific gems
    Bundler::CLI::Common.ensure_all_gems_in_lockfile!(update)
    update = { gems: update, conservative: conservative }
  elsif update && conservative
    update = { conservative: conservative }
  elsif update && bundler
    update = { bundler: bundler }
  end
  file = options[:lockfile]
  file = file ? Pathname.new(file).expand_path : Bundler.default_lockfile
  Bundler.settings.temporary(frozen: false) do
    definition = Bundler.definition(update, file)
    Bundler::CLI::Common.configure_gem_version_promoter(definition, options) if options[:update]
    options["remove-platform"].each do |platform|
      definition.remove_platform(platform)
    end
    options["add-platform"].each do |platform_string|
      platform = Gem::Platform.new(platform_string)
      if platform.to_s == "unknown"
        Bundler.ui.error "The platform `#{platform_string}` is unknown to RubyGems and can't be added to the lockfile."
        exit 1
      end
      definition.add_platform(platform)
    end
    if definition.platforms.empty?
      raise InvalidOption, "Removing all platforms from the bundle is not allowed"
    end
    definition.resolve_remotely! unless options[:local]
    if print
      puts definition.to_lock
    else
      puts "Writing lockfile to #{file}"
      definition.lock
    end
  end
  Bundler.ui.output_stream = previous_output_stream
end