(require 'package)

(defvar my/packages
  '(centered-cursor-mode
    dired-details
    dired+
    erc-hl-nicks
    expand-region
    fill-column-indicator
    guide-key
    hungry-delete
    ido-vertical-mode
    info+
    page-break-lines
    paren-face
    perspective
    rich-minority
    scss-mode
    shell-switcher
    skewer-mode
    smart-mode-line
    tagedit
    znc))

(add-to-list 'package-archives
             '("melpa"     . "http://melpa.milkbox.net/packages/"))
(add-to-list 'package-archives
             '("marmalade" . "http://marmalade-repo.org/packages/"))
(package-initialize)

(unless (file-exists-p "~/.emacs.d/elpa/archives/melpa")
  (package-refresh-contents))

(defun packages-install (packages)
  (mapcar (lambda (package)
            (when (not (package-installed-p package))
              (package-install package)))
          packages)
  (delete-other-windows))

;; Install extensions if they're missing
(defun init--install-packages ()
  (packages-install my/packages))

(condition-case nil
    (init--install-packages)
  (error
   (package-refresh-contents)
   (init--install-packages)))