#!/bin/bash

# Copyright 2011, 2016, 2018, 2023  Patrick J. Volkerding, Sebeka, MN, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# Included in Slint by Didier Spaier didieratslintdotfr

cd $(dirname $0) ; CWD=$(pwd)
KVER=6.12.38
PKGNAM=kernel-firmware-installer
ARCH=noarch
BUILD=1slint
# Compress the firmware blobs?
# Default is "none" for no compression.
# Other types known to be currently supported are "xz" and "zstd".
COMPRESSION=xz

TMP=$CWD
PKG=$TMP/package-$PKGNAM

rm -rf $PKG
mkdir -p $PKG/linux-firmware

echo "/sound/
/video/
/storage/
/media/
/infiniband/
/gpu/
/crypto/
/bluetooth/
/tty/
/scsi/
/platform/
/isdn/
/ptp/
/serial/
/hamradio/
/mscc/
/misc/
/serial/" > excluded

rm -rf linux-firmware
git clone git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
find /lib/modules/$KVER -name "*.ko*" -type f|grep -v -f excluded|sed "s#.ko.zst##;s#.*/##"|sort -u -o net_mods
while read m; do
	modinfo "$m" |grep ^firmware|sed "s#................##"
done <net_mods > net_firm
sort net_firm|uniq > net_firmware
(cd linux-firmware
cp LICEN* GPL* Makefile WHENCE build_packages.py check_whence.py configure copy-firmware.sh $PKG/linux-firmware || exit
while read f; do
	[ ! -s "$f" ] && continue
	dirf="$(echo "$f"|sed "s#\(.*/\).*#\1#")"
	[ ! -s "$dirf" ] && continue
	[ ! -d "$dirf" ] && dirf="."
	echo "dirf=$dirf"
	echo "f=$f"
	install -D -t "$PKG/linux-firmware/$dirf/" "$f"
done <$CWD/net_firmware
)
# Select only 
# Better determine these the same way as above.
DATE="$(lynx -dump -width=256 https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=HEAD | grep "   committer " | head -n 1 | rev | cut -f 3 -d ' ' | rev | tr -d -)"
HEADISAT="$(lynx -dump -width=256 https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=HEAD | grep "    commit   " | head -n 1 | cut -f 2 -d ] | cut -b 1-7)"
chown -R root:root .
mkdir -p lib/firmware

cd $PKG
# Install the firmware from the download directory using "make $INSTALLTARGET":
case $COMPRESSION in
  xz) INSTALLTARGET="install-xz" ;;
  zstd) INSTALLTARGET="install-zst" ;;
  *) INSTALLTARGET="install" ;;
esac
( cd linux-firmware
  echo "Running make DESTDIR=$PKG ${INSTALLTARGET}..."
  make DESTDIR=$PKG $INSTALLTARGET 2> /dev/null
)
# Install documentation:
( cd linux-firmware
  mkdir -p $PKG/usr/doc/kernel-firmware-${DATE}_${HEADISAT}
  cp -a README $PKG/usr/doc/kernel-firmware-${DATE}_${HEADISAT}/README.linux-firmware
  cp -a WHENCE $PKG/usr/doc/kernel-firmware-${DATE}_${HEADISAT}/WHENCE.linux-firmware
  cp -a GPL* LICEN* \
    $PKG/usr/doc/kernel-firmware-${DATE}_${HEADISAT}
  cp -a amd-ucode/README $PKG/usr/doc/kernel-firmware-${DATE}_${HEADISAT}/README.amd-ucode
  cp -a isci/README $PKG/usr/doc/kernel-firmware-${DATE}_${HEADISAT}/README.isci
  cp -a carl9170fw/COPYRIGHT $PKG/usr/doc/kernel-firmware-${DATE}_${HEADISAT}/COPYRIGHT.carl9170fw
  cp -a carl9170fw/README $PKG/usr/doc/kernel-firmware-${DATE}_${HEADISAT}/README.carl9170fw
  cp -a rtw88/README $PKG/usr/doc/kernel-firmware-${DATE}_${HEADISAT}/README.rtw88
  cp -a wfx/LICENCE.wf200 $PKG/usr/doc/kernel-firmware-${DATE}_${HEADISAT}
 )

# Remove git repo clone:
rm -rf linux-firmware

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $TMP/$PKGNAM-${DATE}_${HEADISAT}-$ARCH-$BUILD.txz