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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2019 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2022 Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
;;; Copyright © 2022 Timothy Sample <samplet@ngyro.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/>.

(define-module (gnu build bootloader)
  #:use-module (guix build utils)
  #:use-module (guix utils)
  #:use-module (ice-9 binary-ports)
  #:use-module (ice-9 format)
  #:use-module (rnrs io ports)
  #:use-module (rnrs io simple)
  #:export (write-file-on-device
            install-efi-loader))


;;;
;;; Writing utils.
;;;

(define (write-file-on-device file size device offset)
  "Write SIZE bytes from FILE to DEVICE starting at OFFSET."
  (call-with-input-file file
    (lambda (input)
      (let ((bv (get-bytevector-n input size)))
        (call-with-port
         ;; Do not use "call-with-output-file" that would truncate the file.
         (open-file-output-port device
                                (file-options no-truncate no-fail)
                                (buffer-mode block)
                                ;; Use the binary-friendly ISO-8859-1
                                ;; encoding.
                                (make-transcoder (latin-1-codec)))
         (lambda (output)
           (seek output offset SEEK_SET)
           (put-bytevector output bv)))))))


;;;
;;; EFI bootloader.
;;;

(define* (install-efi grub grub-config esp #:key targets)
  "Write a self-contained GRUB EFI loader to the mounted ESP using
GRUB-CONFIG.

If TARGETS is set, use its car as the GRUB image format and its cdr as
the output filename.  Otherwise, use defaults for the host platform."
  (let* ((system %host-type)
         ;; Hard code the output location to a well-known path recognized by
         ;; compliant firmware. See "3.5.1.1 Removable Media Boot Behaviour":
         ;; http://www.uefi.org/sites/default/files/resources/UEFI%20Spec%202_6.pdf
         (grub-mkstandalone (string-append grub "/bin/grub-mkstandalone"))
         (efi-directory (string-append esp "/EFI/BOOT"))
         ;; Map grub target names to boot file names.
         (efi-targets (or targets
                          (cond ((string-prefix? "x86_64" system)
                                 '("x86_64-efi" . "BOOTX64.EFI"))
                                ((string-prefix? "i686" system)
                                 '("i386-efi" . "BOOTIA32.EFI"))
                                ((string-prefix? "armhf" system)
                                 '("arm-efi" . "BOOTARM.EFI"))
                                ((string-prefix? "aarch64" system)
                                 '("arm64-efi" . "BOOTAA64.EFI"))))))
    ;; grub-mkstandalone requires a TMPDIR to prepare the firmware image.
    (setenv "TMPDIR" esp)

    (mkdir-p efi-directory)
    (invoke grub-mkstandalone "-O" (car efi-targets)
            "-o" (string-append efi-directory "/"
                                (cdr efi-targets))
            ;; Graft the configuration file onto the image.
            (string-append "boot/grub/grub.cfg=" grub-config))))

(define* (install-efi-loader grub-efi esp #:key targets)
  "Install in ESP directory the given GRUB-EFI bootloader.  Configure it to
load the Grub bootloader located in the 'Guix_image' root partition.

If TARGETS is set, use its car as the GRUB image format and its cdr as
the output filename.  Otherwise, use defaults for the host platform."
  (let ((grub-config "grub.cfg"))
    (call-with-output-file grub-config
      (lambda (port)
        ;; Create a tiny configuration file telling the embedded grub where to
        ;; load the real thing.  XXX This is quite fragile, and can prevent
        ;; the image from booting when there's more than one volume with this
        ;; label present.  Reproducible almost-UUIDs could reduce the risk
        ;; (not eliminate it).
        (format port
                "insmod part_msdos~@
               insmod part_gpt~@
               search --set=root --label Guix_image~@
               configfile /boot/grub/grub.cfg~%")))
    (install-efi grub-efi grub-config esp #:targets targets)
    (delete-file grub-config)))

2f3f845e83cfbca4d700b51dba50b4d5'>gnu: Remove ".git" from "https://github/…/….git".Ludovic Courtès Until now, 'lookup-origin' and thus 'lookup-origin-revision' in (guix swh) would sometimes return #f for these because the ".git" URLs are redirects to the non-".git" URLs. Consequently, 'guix lint -c archival' would keep saying "scheduled Software Heritage archival"; likewise, the fallback download code would fail. * gnu/packages/ada.scm, gnu/packages/admin.scm, gnu/packages/aidc.scm, gnu/packages/algebra.scm, gnu/packages/android.scm, gnu/packages/animation.scm, gnu/packages/arcan.scm, gnu/packages/assembly.scm, gnu/packages/audio.scm, gnu/packages/authentication.scm, gnu/packages/avr.scm, gnu/packages/axoloti.scm, gnu/packages/backup.scm, gnu/packages/bash.scm, gnu/packages/benchmark.scm, gnu/packages/bioconductor.scm, gnu/packages/bioinformatics.scm, gnu/packages/bittorrent.scm, gnu/packages/boost.scm, gnu/packages/build-tools.scm, gnu/packages/c.scm, gnu/packages/calendar.scm, gnu/packages/cdrom.scm, gnu/packages/check.scm, gnu/packages/chemistry.scm, gnu/packages/chez.scm, gnu/packages/clojure.scm, gnu/packages/code.scm, gnu/packages/compression.scm, gnu/packages/compton.scm, gnu/packages/coq.scm, gnu/packages/cpp.scm, gnu/packages/cran.scm, gnu/packages/crypto.scm, gnu/packages/curl.scm, gnu/packages/databases.scm, gnu/packages/datastructures.scm, gnu/packages/debug.scm, gnu/packages/disk.scm, gnu/packages/distributed.scm, gnu/packages/django.scm, gnu/packages/dlang.scm, gnu/packages/dns.scm, gnu/packages/docker.scm, gnu/packages/education.scm, gnu/packages/efi.scm, gnu/packages/elixir.scm, gnu/packages/emacs-xyz.scm, gnu/packages/embedded.scm, gnu/packages/emulators.scm, gnu/packages/engineering.scm, gnu/packages/erlang.scm, gnu/packages/fabric-management.scm, gnu/packages/file-systems.scm, gnu/packages/finance.scm, gnu/packages/firmware.scm, gnu/packages/flashing-tools.scm, gnu/packages/fonts.scm, gnu/packages/fontutils.scm, gnu/packages/fpga.scm, gnu/packages/game-development.scm, gnu/packages/games.scm, gnu/packages/genealogy.scm, gnu/packages/genimage.scm, gnu/packages/geo.scm, gnu/packages/gimp.scm, gnu/packages/gl.scm, gnu/packages/gnome-xyz.scm, gnu/packages/gnome.scm, gnu/packages/gnuzilla.scm, gnu/packages/golang.scm, gnu/packages/gpodder.scm, gnu/packages/graph.scm, gnu/packages/graphics.scm, gnu/packages/graphviz.scm, gnu/packages/groff.scm, gnu/packages/groovy.scm, gnu/packages/gtk.scm, gnu/packages/guile-xyz.scm, gnu/packages/guile.scm, gnu/packages/hardware.scm, gnu/packages/haskell-apps.scm, gnu/packages/haskell-xyz.scm, gnu/packages/hexedit.scm, gnu/packages/i2p.scm, gnu/packages/ibus.scm, gnu/packages/image-processing.scm, gnu/packages/image-viewers.scm, gnu/packages/image.scm, gnu/packages/ipfs.scm, gnu/packages/java-graphics.scm, gnu/packages/java-maths.scm, gnu/packages/java.scm, gnu/packages/javascript.scm, gnu/packages/jrnl.scm, gnu/packages/julia.scm, gnu/packages/jupyter.scm, gnu/packages/kodi.scm, gnu/packages/language.scm, gnu/packages/lego.scm, gnu/packages/less.scm, gnu/packages/libusb.scm, gnu/packages/linux.scm, gnu/packages/lirc.scm, gnu/packages/lisp-xyz.scm, gnu/packages/llvm.scm, gnu/packages/logging.scm, gnu/packages/lolcode.scm, gnu/packages/lua.scm, gnu/packages/lxde.scm, gnu/packages/lxqt.scm, gnu/packages/machine-learning.scm, gnu/packages/mail.scm, gnu/packages/markup.scm, gnu/packages/maths.scm, gnu/packages/maven.scm, gnu/packages/mes.scm, gnu/packages/messaging.scm, gnu/packages/monitoring.scm, gnu/packages/mpd.scm, gnu/packages/music.scm, gnu/packages/networking.scm, gnu/packages/node-xyz.scm, gnu/packages/ocaml.scm, gnu/packages/ocr.scm, gnu/packages/onc-rpc.scm, gnu/packages/opencl.scm, gnu/packages/opencog.scm, gnu/packages/pantheon.scm, gnu/packages/password-utils.scm, gnu/packages/patchutils.scm, gnu/packages/pdf.scm, gnu/packages/perl6.scm, gnu/packages/phabricator.scm, gnu/packages/popt.scm, gnu/packages/printers.scm, gnu/packages/prolog.scm, gnu/packages/protobuf.scm, gnu/packages/pulseaudio.scm, gnu/packages/python-crypto.scm, gnu/packages/python-web.scm, gnu/packages/python-xyz.scm, gnu/packages/qt.scm, gnu/packages/radio.scm, gnu/packages/rails.scm, gnu/packages/rdf.scm, gnu/packages/rednotebook.scm, gnu/packages/rpc.scm, gnu/packages/rsync.scm, gnu/packages/ruby.scm, gnu/packages/rust.scm, gnu/packages/scheme.scm, gnu/packages/screen.scm, gnu/packages/security-token.scm, gnu/packages/selinux.scm, gnu/packages/serialization.scm, gnu/packages/shells.scm, gnu/packages/shellutils.scm, gnu/packages/simh.scm, gnu/packages/sml.scm, gnu/packages/ssh.scm, gnu/packages/statistics.scm, gnu/packages/stenography.scm, gnu/packages/sync.scm, gnu/packages/syncthing.scm, gnu/packages/synergy.scm, gnu/packages/telephony.scm, gnu/packages/terminals.scm, gnu/packages/tex.scm, gnu/packages/texinfo.scm, gnu/packages/text-editors.scm, gnu/packages/textutils.scm, gnu/packages/time.scm, gnu/packages/tmux.scm, gnu/packages/tor.scm, gnu/packages/toys.scm, gnu/packages/version-control.scm, gnu/packages/video.scm, gnu/packages/vim.scm, gnu/packages/virtualization.scm, gnu/packages/vlang.scm, gnu/packages/vnc.scm, gnu/packages/vpn.scm, gnu/packages/web-browsers.scm, gnu/packages/web.scm, gnu/packages/wireservice.scm, gnu/packages/wm.scm, gnu/packages/wxwidgets.scm, gnu/packages/xdisorg.scm, gnu/packages/xml.scm, gnu/packages/xorg.scm, tests/lint.scm: Remove trailing ".git" from 'git-reference' URL. 2020-06-14gnu: gimp: Update to 2.10.20.Tobias Geerinckx-Rice * gnu/packages/gimp.scm (gimp): Update to 2.10.20. 2020-06-14gnu: gegl: Update to 0.4.24.Tobias Geerinckx-Rice * gnu/packages/gimp.scm (gegl): Update to 0.4.24. 2020-06-14gnu: babl: Update to 0.1.78.Tobias Geerinckx-Rice * gnu/packages/gimp.scm (babl): Update to 0.1.78. 2020-05-29gnu: babl: Update to 0.1.76.Tobias Geerinckx-Rice * gnu/packages/gimp.scm (babl): Update to 0.1.76.