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#!/usr/bin/env bash
# helper script: Downloads GRUB and patches it.
#
# Copyright (C) 2014, 2015, 2016 Leah Rowe <info@minifree.org>
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
#
# This script assumes that the working directory is the
# root of libreboot_src or libreboot git.
[ "x${DEBUG+set}" = 'xset' ] && set -v
set -u -e
# Remove the old version that may still exist
# ------------------------------------------------------------------------------
printf "Downloading GRUB\n"
rm -Rf "grub/"
# Get latest GRUB
# ------------------------------------------------------------------------------
# download it using git
git clone git://git.savannah.gnu.org/grub.git || git clone http://git.savannah.gnu.org/r/grub.git
# modifications are required
cd "grub/"
# reset to known revision
git reset --hard e54c99aaff5e5f6f5d3b06028506c57e66d8ef77
# Apply patches
# ------------------------------------------------------------------------------
# Replace "GNU GRUB version" in GRUB screen with "FREE AS IN FREEDOM"
git am "../resources/grub/patch/0001-grub-core-normal-main.c-Display-FREE-AS-IN-FREEDOM-n.patch"
# Enable reproducible builds
git am "../resources/grub/patch/reproducible/0001-mkstandalone-add-argument-fixed-time-to-override-mti.patch"
git am "../resources/grub/patch/reproducible/0002-mkrescue-add-argument-fixed-time-to-get-reproducible.patch"
git am "../resources/grub/patch/reproducible/0003-Makefile-use-FIXED_TIMESTAMP-for-mkstandalone-if-set.patch"
cd "../"
# Also download SeaBIOS, which we use with GRUB, to implement SeaGRUB
./download seabios
printf "\n\n"
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