A sample init.el

init.el

(require 'package)
(setq package-archives
       '(("marmalade" . "http://marmalade-repo.org/packages/")
	 ("melpa" . "http://melpa.milkbox.net/packages/")
	 ("melpa-stable" . "http://stable.melpa.org/packages/")
         ("gnu" . "http://elpa.gnu.org/packages/")
         ))
;; ("org" . "http://orgmode.org/elpa/")

(setq package-pinned-packages
      '((cyberpunk-theme       . "melpa-stable")
        (smartparens           . "melpa-stable")
	(zenburn-theme         . "melpa-stable")
	(anti-zenburn-theme    . "melpa-stable")
	(zen-and-art-theme     . "marmalade")
        (company               . "melpa-stable")
        (elixir-mode           . "melpa")
	(alchemist             . "melpa")
	(rainbow-delimiters    . "melpa-stable")
	(web-mode              . "melpa-stable")
	(helm                  . "melpa-stable")
	(projectile            . "melpa-stable")
	(elm-mode              . "melpa")
	(magit                 . "melpa-stable")
        (clojure-mode          . "melpa-stable")
        (cider                 . "melpa-stable")
        (zoom-window           . "melpa")
        (auto-highlight-symbol . "melpa")
        (multi-term            . "melpa")
        (intero                . "melpa-stable")
        (popwin                . "melpa-stable")
        (direx                 . "melpa-stable")
        (pretty-lambdada       . "melpa")
        (yasnippet             . "melpa")
        (hy-mode               . "melpa")
        (lfe-mode              . "melpa")
        (emmet-mode            . "marmalade")
        (rust-mode             . "melpa")
        (idris-mode            . "melpa-stable")
        (docker                . "melpa-stable")
        (dockerfile-mode       . "melpa-stable")
        (yaml-mode             . "melpa-stable")
        (swiper                . "melpa-stable")
        (counsel               . "melpa-stable")
        (neotree               . "melpa-stable")
        (multiple-cursors      . "melpa-stable")
        ))

(package-initialize)

(defun install-required-packages (package-list)
  (package-refresh-contents)
  (mapc (lambda (package)
	  (unless (require package nil t)
	    (package-install package)))
	  package-list))

(setq required-package-list '(cyberpunk-theme
                              zenburn-theme
                              anti-zenburn-theme
                              zen-and-art-theme
			      smartparens
			      company
                              web-mode
			      alchemist
			      elixir-mode
                              rainbow-delimiters
			      helm
			      projectile
			      elm-mode
			      magit
                              clojure-mode
                              cider
                              zoom-window
                              auto-highlight-symbol
                              multi-term
                              intero
                              popwin
                              direx
                              pretty-lambdada
                              yasnippet
                              hy-mode
                              lfe-mode
                              emmet-mode
                              rust-mode
                              idris-mode
                              docker
                              dockerfile-mode
                              yaml-mode
                              swiper
                              counsel
                              neotree
                              multiple-cursors
                              ))

;; Uncomment to install new packages.
;; (install-required-packages required-package-list)

(add-to-list 'load-path (expand-file-name "parts" user-emacs-directory))

(require 'system-prt)
(require 'mouse-prt)
(require 'zoom-prt)
(require 'smartparens-prt)
(require 'company-prt)
(require 'projectile-prt)
(require 'editor-prt)
(require 'clojure-prt)
(require 'figwheel-prt)
(require 'elixir-prt)
(require 'lfe-prt)
(require 'helm-prt)
(require 'ido-prt)
(require 'haskell-prt)
(require 'direx-prt)
(require 'multiterm-prt)
(require 'utils-prt)
(require 'yasnippet-prt)
(require 'html-prt)
(require 'keybindings-prt)
(require 'react-prt)
(require 'swiper-prt)
(require 'counsel-prt)
(require 'ivy-prt)
(require 'docker-prt)
;;(require 'agda-prt)
(require 'neotree-prt)
(require 'multiple-cursors-prt)
(if (eq system-type 'darwin)
     (require 'osx-prt))
(require 'custom-prt)

(provide 'init)

;;; init.el ends here