Provides extensions to
package.el for Emacs 24 and later.
Declares a manifest of packages that should be installed on this system, installing any missing packages and removing any installed packages that are not in the manifest.
This makes it easy to keep a list of packages under version control and replicated across all your environments, without having to have all the packages themselves under version control.
(package-manifest 'ag 'expand-region 'magit 'melpa 'paredit 'ruby-mode 'ssh 'window-number)