       tree updates, ({pack, latestVersion}) ->
         "#{pack.name.yellow} #{pack.version.red} -> #{latestVersion.green}"
 
+      return callback() if options.command is 'outdated'
       return callback() if options.argv.list
       return callback() if updates.length is 0
 


module.exports =
class Upgrade extends Command
  @commandNames: ['upgrade']

  constructor: ->
    @atomDirectory = config.getAtomDirectory()

    options.usage """

      Usage: apm upgrade
             apm upgrade --list

      Upgrade out of date packages installed to ~/.atom/packages

