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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.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/>.
(define-module (guix build install)
#:use-module (guix build utils)
#:use-module (guix build install)
#:use-module (ice-9 match)
#:export (install-grub
evaluate-populate-directive
reset-timestamps
register-closure))
;;; Commentary:
;;;
;;; This module supports the installation of the GNU system on a hard disk.
;;; It is meant to be used both in a build environment (in derivations that
;;; build VM images), and on the bare metal (when really installing the
;;; system.)
;;;
;;; Code:
(define* (install-grub grub.cfg device mount-point)
"Install GRUB with GRUB.CFG on DEVICE, which is assumed to be mounted on
MOUNT-POINT. Return #t on success."
(mkdir-p (string-append mount-point "/boot/grub"))
(symlink grub.cfg (string-append mount-point "/boot/grub/grub.cfg"))
(zero? (system* "grub-install" "--no-floppy"
"--boot-directory" (string-append mount-point "/boot")
device)))
(define (evaluate-populate-directive directive target)
"Evaluate DIRECTIVE, an sexp describing a file or directory to create under
directory TARGET."
(match directive
(('directory name)
(mkdir-p (string-append target name)))
(('directory name uid gid)
(let ((dir (string-append target name)))
(mkdir-p dir)
(chown dir uid gid)))
((new '-> old)
(symlink old (string-append target new)))))
(define (reset-timestamps directory)
"Reset the timestamps of all the files under DIRECTORY, so that they appear
as created and modified at the Epoch."
(display "clearing file timestamps...\n")
(for-each (lambda (file)
(let ((s (lstat file)))
;; XXX: Guile uses libc's 'utime' function (not 'futime'), so
;; the timestamp of symlinks cannot be changed, and there are
;; symlinks here pointing to /gnu/store, which is the host,
;; read-only store.
(unless (eq? (stat:type s) 'symlink)
(utime file 0 0 0 0))))
(find-files directory "")))
(define (register-closure store closure)
"Register CLOSURE in STORE, where STORE is the directory name of the target
store and CLOSURE is the name of a file containing a reference graph as used
by 'guix-register'."
(let ((status (system* "guix-register" "--prefix" store
closure)))
(unless (zero? status)
(error "failed to register store items" closure))))
;;; install.scm ends here
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