66 lines
2.3 KiB
Scheme
66 lines
2.3 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
||
;;; Copyright © 2014 Alex Kost <alezost@gmail.com>
|
||
;;;
|
||
;;; This file is part of GNU Guix.
|
||
;;;
|
||
;;; GNU Guix 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 3 of the License, or (at
|
||
;;; your option) any later version.
|
||
;;;
|
||
;;; GNU Guix 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 Guix. If not, see <http://www.gnu.org/licenses/>.
|
||
|
||
;;; Commentary:
|
||
|
||
;; This is an auxiliary file for the Emacs UI. It is used to add Guix
|
||
;; directories to path variables and to load the main code.
|
||
|
||
;;; Code:
|
||
|
||
(use-modules (ice-9 regex)
|
||
(srfi srfi-26))
|
||
|
||
(define %guix-dir)
|
||
|
||
;; The code is taken from ‘guix’ executable script
|
||
(define (set-paths!)
|
||
(define-syntax-rule (push! elt v) (set! v (cons elt v)))
|
||
|
||
(define config-lookup
|
||
(let ((config '(("prefix" . "@prefix@")
|
||
("guilemoduledir" . "@guilemoduledir@")))
|
||
(var-ref-regexp (make-regexp "\\$\\{([a-z]+)\\}")))
|
||
(define (expand-var-ref match)
|
||
(lookup (match:substring match 1)))
|
||
(define (expand str)
|
||
(regexp-substitute/global #f var-ref-regexp str
|
||
'pre expand-var-ref 'post))
|
||
(define (lookup name)
|
||
(expand (assoc-ref config name)))
|
||
lookup))
|
||
|
||
(let ((module-dir (config-lookup "guilemoduledir"))
|
||
(updates-dir (and=> (or (getenv "XDG_CONFIG_HOME")
|
||
(and=> (getenv "HOME")
|
||
(cut string-append <> "/.config")))
|
||
(cut string-append <> "/guix/latest"))))
|
||
(push! module-dir %load-path)
|
||
(push! module-dir %load-compiled-path)
|
||
(if (and updates-dir (file-exists? updates-dir))
|
||
(begin
|
||
(set! %guix-dir updates-dir)
|
||
(push! updates-dir %load-path)
|
||
(push! updates-dir %load-compiled-path))
|
||
(set! %guix-dir module-dir))))
|
||
|
||
(set-paths!)
|
||
|
||
(load-from-path "guix-main")
|
||
|