; my-packages.el
(require 'package)
(add-to-list 'package-archives
             '("melpa" . "http://melpa.milkbox.net/packages/") t)
(add-to-list 'package-archives
             '("marmalade" . "http://marmalade-repo.org/packages/") t)
(package-initialize)

; fetch the list of packages available
(unless package-archive-contents
  (package-refresh-contents))

;; make sure my list of packages are installed
(setq package-list '(go-mode
                     rust-mode
                     haskell-mode
                     ghc
                     restclient
                     tangotango-theme
                     fill-column-indicator
                     paredit
                     leuven-theme
                     notmuch
                     railscasts-theme
                     racket-mode
                     auto-complete
                     magit
                     ledger-mode))

; install the missing packages
(dolist (package package-list)
  (unless (package-installed-p package)
    (package-install package)))

;; upgrade installed
(save-window-excursion
  (package-list-packages t)
  (package-menu-mark-upgrades)
  (package-menu-execute t))