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-rw-r--r--emacs/guix-helper.scm.in65
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-;;; 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")
-