83 lines
3.2 KiB
Scheme
83 lines
3.2 KiB
Scheme
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (guix build install)
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#:use-module (guix build utils)
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#:use-module (guix build install)
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#:use-module (ice-9 match)
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#:export (install-grub
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evaluate-populate-directive
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reset-timestamps
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register-closure))
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;;; Commentary:
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;;;
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;;; This module supports the installation of the GNU system on a hard disk.
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;;; It is meant to be used both in a build environment (in derivations that
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;;; build VM images), and on the bare metal (when really installing the
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;;; system.)
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;;;
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;;; Code:
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(define* (install-grub grub.cfg device mount-point)
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"Install GRUB with GRUB.CFG on DEVICE, which is assumed to be mounted on
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MOUNT-POINT. Return #t on success."
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(mkdir-p (string-append mount-point "/boot/grub"))
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(symlink grub.cfg (string-append mount-point "/boot/grub/grub.cfg"))
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(zero? (system* "grub-install" "--no-floppy"
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"--boot-directory" (string-append mount-point "/boot")
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device)))
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(define (evaluate-populate-directive directive target)
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"Evaluate DIRECTIVE, an sexp describing a file or directory to create under
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directory TARGET."
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(match directive
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(('directory name)
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(mkdir-p (string-append target name)))
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(('directory name uid gid)
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(let ((dir (string-append target name)))
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(mkdir-p dir)
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(chown dir uid gid)))
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((new '-> old)
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(symlink old (string-append target new)))))
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(define (reset-timestamps directory)
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"Reset the timestamps of all the files under DIRECTORY, so that they appear
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as created and modified at the Epoch."
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(display "clearing file timestamps...\n")
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(for-each (lambda (file)
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(let ((s (lstat file)))
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;; XXX: Guile uses libc's 'utime' function (not 'futime'), so
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;; the timestamp of symlinks cannot be changed, and there are
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;; symlinks here pointing to /gnu/store, which is the host,
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;; read-only store.
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(unless (eq? (stat:type s) 'symlink)
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(utime file 0 0 0 0))))
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(find-files directory "")))
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(define (register-closure store closure)
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"Register CLOSURE in STORE, where STORE is the directory name of the target
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store and CLOSURE is the name of a file containing a reference graph as used
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by 'guix-register'."
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(let ((status (system* "guix-register" "--prefix" store
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closure)))
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(unless (zero? status)
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(error "failed to register store items" closure))))
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;;; install.scm ends here
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