guix/scripts/guix.in

68 lines
2.7 KiB
Scheme

#!@GUILE@ --no-auto-compile
-*- scheme -*-
!#
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Mark H Weaver <mhw@netris.org>
;;;
;;; 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/>.
;; IMPORTANT: We must avoid loading any modules from Guix here,
;; because we need to adjust the guile load paths first.
;; It's okay to import modules from core Guile though.
(use-modules (ice-9 regex)
(srfi srfi-26))
(let ()
(define-syntax-rule (push! elt v) (set! v (cons elt v)))
(define config-lookup
(let ((config '(("prefix" . "@prefix@")
("datarootdir" . "@datarootdir@")
("guilemoduledir" . "@guilemoduledir@")
("localedir" . "@localedir@")))
(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))
(define (maybe-augment-load-paths!)
(unless (getenv "GUIX_UNINSTALLED")
(let ((module-dir (config-lookup "guilemoduledir")))
(push! module-dir %load-path)
(push! module-dir %load-compiled-path))
(let ((updates-dir (and=> (or (getenv "XDG_CONFIG_HOME")
(and=> (getenv "HOME")
(cut string-append <> "/.config")))
(cut string-append <> "/guix/latest"))))
(when (and updates-dir (file-exists? updates-dir))
(push! updates-dir %load-path)
(push! updates-dir %load-compiled-path)))))
(define (run-guix-main)
(let ((guix-main (module-ref (resolve-interface '(guix ui))
'guix-main)))
(bindtextdomain "guix" (config-lookup "localedir"))
(bindtextdomain "guix-packages" (config-lookup "localedir"))
(apply guix-main (command-line))))
(maybe-augment-load-paths!)
(run-guix-main))