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;; add melpa repo
(require 'package)
(add-to-list 'package-archives
'("melpa" . "http://melpa.org/packages/") t)
(package-initialize)
(defun require-package (package &optional min-version no-refresh)
"Install given PACKAGE, optionally requiring MIN-VERSION.
If NO-REFRESH is non-nil, the available package lists will not be
re-downloaded in order to locate PACKAGE."
(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)))))
(defun require-packages (packages)
"Install a list of PACKAGES."
(mapcar (lambda (package) (require-package package)) packages))
;; add ~/.emacs.d/site-lisp to load path, if it exists
;; used for backported code and overriding existing packages
(let ((site-lisp (expand-file-name "site-lisp" user-emacs-directory)))
(when (file-directory-p site-lisp)
(add-to-list 'load-path site-lisp)))
(provide 'init-package)
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