scripts/guix.in

   1 #!@GUILE@ --no-auto-compile
   2 -*- scheme -*-
   3 !#
   4 ;;; GNU Guix --- Functional package management for GNU
   5 ;;; Copyright © 2013 Mark H Weaver <mhw@netris.org>
   6 ;;;
   7 ;;; This file is part of GNU Guix.
   8 ;;;
   9 ;;; GNU Guix is free software; you can redistribute it and/or modify it
  10 ;;; under the terms of the GNU General Public License as published by
  11 ;;; the Free Software Foundation; either version 3 of the License, or (at
  12 ;;; your option) any later version.
  13 ;;;
  14 ;;; GNU Guix is distributed in the hope that it will be useful, but
  15 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ;;; GNU General Public License for more details.
  18 ;;;
  19 ;;; You should have received a copy of the GNU General Public License
  20 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
  21
  22 ;; IMPORTANT: We must avoid loading any modules from Guix here,
  23 ;; because we need to adjust the guile load paths first.
  24 ;; It's okay to import modules from core Guile though.
  25 (use-modules (ice-9 regex)
  26              (srfi srfi-26))
  27
  28 (let ()
  29   (define-syntax-rule (push! elt v) (set! v (cons elt v)))
  30
  31   (define config-lookup
  32     (let ((config '(("prefix"         . "@prefix@")
  33                     ("exec_prefix"    . "@exec_prefix@")
  34                     ("datarootdir"    . "@datarootdir@")
  35                     ("guilemoduledir" . "@guilemoduledir@")
  36                     ("guileobjectdir" . "@guileobjectdir@")
  37                     ("localedir"      . "@localedir@")))
  38           (var-ref-regexp (make-regexp "\\$\\{([a-z_]+)\\}")))
  39       (define (expand-var-ref match)
  40         (lookup (match:substring match 1)))
  41       (define (expand str)
  42         (regexp-substitute/global #f var-ref-regexp str
  43                                   'pre expand-var-ref 'post))
  44       (define (lookup name)
  45         (expand (assoc-ref config name)))
  46       lookup))
  47
  48   (define (maybe-augment-load-paths!)
  49     (unless (getenv "GUIX_UNINSTALLED")
  50       (let ((module-dir (config-lookup "guilemoduledir"))
  51             (object-dir (config-lookup "guileobjectdir")))
  52         (push! module-dir %load-path)
  53         (push! object-dir %load-compiled-path))
  54       (let ((updates-dir (and=> (or (getenv "XDG_CONFIG_HOME")
  55                                     (and=> (getenv "HOME")
  56                                            (cut string-append <> "/.config")))
  57                                 (cut string-append <> "/guix/latest"))))
  58         (when (and updates-dir (file-exists? updates-dir))
  59           ;; XXX: Currently 'guix pull' puts both .scm and .go files in
  60           ;; UPDATES-DIR.
  61           (push! updates-dir %load-path)
  62           (push! updates-dir %load-compiled-path)))))
  63
  64   (define (run-guix-main)
  65     (let ((guix-main (module-ref (resolve-interface '(guix ui))
  66                                  'guix-main)))
  67       (bindtextdomain "guix" (config-lookup "localedir"))
  68       (bindtextdomain "guix-packages" (config-lookup "localedir"))
  69       (apply guix-main (command-line))))
  70
  71   (maybe-augment-load-paths!)
  72
  73   ;; XXX: It would be more convenient to change it to:
  74   ;;   (exit (run-guix-main))
  75   ;; but since the 'guix' command is not updated by 'guix pull', we cannot
  76   ;; really do it now.
  77   (run-guix-main))