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;;; package-install.el --- auto-installer for package.el
;; Copyright (C) 2007, 2008 Tom Tromey <tromey@redhat.com>
;; This file is not (yet) part of GNU Emacs.
;; However, it is distributed under the same license.
;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;; Code:
;;; We don't want to define anything global here, so no defuns or
;;; defvars.
;; Some values we need, copied from package.el, but with different
;; names.
(let ((my-archive-base "http://tromey.com/elpa/")
(my-user-dir (expand-file-name "~/.emacs.d/elpa")))
(require 'pp)
(let ((download
(lambda (url)
(if (fboundp 'url-retrieve-synchronously)
;; Use URL to download.
(let ((buffer (url-retrieve-synchronously url)))
(save-excursion
(set-buffer buffer)
(goto-char (point-min))
(re-search-forward "^$" nil 'move)
(forward-char)
(delete-region (point-min) (point))
buffer))
;; Use wget to download.
(save-excursion
(with-current-buffer
(get-buffer-create
(generate-new-buffer-name " *Download*"))
(shell-command (concat "wget -q -O- " url)
(current-buffer))
(goto-char (point-min))
(current-buffer)))))))
;; Make the ELPA directory.
(make-directory my-user-dir t)
;; Download package.el and put it in the user dir.
(let ((pkg-buffer (funcall download (concat my-archive-base "package.el"))))
(save-excursion
(set-buffer pkg-buffer)
(setq buffer-file-name
(concat (file-name-as-directory my-user-dir)
"package.el"))
(save-buffer)
(kill-buffer pkg-buffer)))
;; Load package.el.
(load (expand-file-name "~/.emacs.d/elpa/package.el"))
;; Download URL package if we need it.
(unless (fboundp 'url-retrieve-synchronously)
;; Note that we don't name the symbol "url-version", as that
;; will cause us not to define the real url-version when
;; url-vars is loaded, which in turn will cause errors later.
;; Thanks to Tom Breton for this subtlety.
(let* ((the-version "1.15")
(pkg-buffer (funcall download (concat my-archive-base
"url-" the-version ".tar"))))
(save-excursion
(set-buffer pkg-buffer)
(package-unpack 'url the-version)
(kill-buffer pkg-buffer))))
;; Arrange to load package.el at startup.
;; Partly copied from custom-save-all.
(let ((filename (or user-init-file
(and (yes-or-no-p "You have no user-init-file, probably because Emacs was started with -q. Use ~/.emacs? ")
(convert-standard-filename "~/.emacs"))))
(magic (pp-to-string
'(when (load (expand-file-name "~/.emacs.d/elpa/package.el"))
(package-initialize)))))
(if (not filename)
(warn (concat "Cannot automatically activate package.el after reboot.\n"
"Please append the following code to your .emacs manually:\n"
"%s") magic)
(let ((old-buffer (find-buffer-visiting filename)))
(with-current-buffer (let ((find-file-visit-truename t))
(or old-buffer (find-file-noselect filename)))
(unless (eq major-mode 'emacs-lisp-mode)
(emacs-lisp-mode))
(let ((inhibit-read-only t))
(save-excursion
(goto-char (point-max))
(newline (if (bolp) 2 1))
(insert ";;; This was installed by package-install.el.\n")
(insert ";;; This provides support for the package system and\n")
(insert ";;; interfacing with ELPA, the package archive.\n")
(insert ";;; Move this code earlier if you want to reference\n")
(insert ";;; packages in your .emacs.\n")
(insert magic)))
(let ((file-precious-flag t))
(save-buffer))
(unless old-buffer
(kill-buffer (current-buffer)))))))
;; Start the package manager.
(package-initialize)
;; Read package archive to give the user a nice initial
;; experience. FIXME: this doesn't work, at least squid gave a
;; weird error when I tried it :(
;; (package-refresh-contents)
))
;;; package-install.el ends here
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