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

;; helper function to install a package if it doesn't exist
(defun require-package (package &optional min-version no-refresh)
  (if (package-installed-p package min-version)
      t
    (if (or (assoc package package-archive-contents) no-refresh)
        (package-install package)
      (progn
        (package-refresh-contents)
        (require-package package min-version t)))))

(provide 'init-package)