require 'rubygems/command' require 'rubygems/local_remote_options' require 'rubygems/spec_fetcher' require 'rubygems/version_option' class Gem::Commands::OutdatedCommand < Gem::Command include Gem::LocalRemoteOptions include Gem::VersionOption def initialize super 'outdated', 'Display all gems that need updates' add_local_remote_options add_platform_option end def description # :nodoc: <<-EOF The outdated command lists gems you may wish to upgrade to a newer version. You can check for dependency mismatches using the dependency command and update the gems with the update or install commands. EOF end def execute Gem::Specification.outdated_and_latest_version.each do |spec, remote_version| say "#{spec.name} (#{spec.version} < #{remote_version})" end end end