#!/bin/sh
# Copyright (C) 2021 Denis 'GNUtoo' Carikli
# 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 2 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
set -e
set -x

greg_kh_fingerprint="647F28654894E3BD457199BE38DBBDC86092693E"
greg_kh_key="-----BEGIN PGP PUBLIC KEY BLOCK-----

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=GtNR
-----END PGP PUBLIC KEY BLOCK-----"

kernel_major_version="5.10"
kernel_version="5.10.71"

gpg --list-keys "${greg_kh_fingerprint}" || \
    echo "${greg_kh_key}" | gpg --import -

test -d releases || \
    git clone git://linux-libre.fsfla.org/releases.git

test -f "linux-${kernel_version}.tar" || \
    test -f "linux-${kernel_version}.tar.xz" || \
    wget "https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-${kernel_version}.tar.xz"

test -f "linux-${kernel_version}.tar.xz.sign" || \
    wget "https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-${kernel_version}.tar.sign"

test -f "linux-${kernel_version}.tar" || \
    unxz --verbose "linux-${kernel_version}.tar.xz"

# Check the download integrity
gpg --verify "linux-${kernel_version}.tar.sign"

cd releases

git checkout "sources/v${kernel_version}-gnu1" -f
# git checkout "scripts/v${kernel_version}-gnu1" -- "deblob-${kernel_major_version}"
# git checkout "scripts/v${kernel_version}-gnu1" -- deblob-check

git checkout scripts/v5.10.62-gnu1 -- "deblob-${kernel_major_version}"
git checkout scripts/v5.10.62-gnu1 -- deblob-check
chmod +x deblob-check "deblob-${kernel_major_version}"

# The --strip=1 avoid the linux-5.10.71 prefix
tar xf "../linux-${kernel_version}.tar" --strip=1

./deblob-"${kernel_major_version}"

git diff --stat