#!/bin/sh
# This extract from the kernel-firmware package the firmware for network cards
# wired and wireless that could be needed during installation
# see also https://wiki.archlinux.org/title/Linux_firmware and alpine and debian
# Run this script as root or usiong sudo
export PKGNAM=firmware-installer
export ARCH=noarch
export BUILD=1slint
CWD=$(pwd)
export PKG="$CWD/pkg"
rm -rf FIRMWARE MODULES
mkdir -p FIRMWARE/firmware MODULES
KERNELPKG=$(find ../../slint -name "kernel-[[:digit:]]*txz")
KERNELVERSION=$(printf "%b" "$KERNELPKG"|sed 's/.*-\([^-]*\)-[^-]*-[^-]*$/\1/')
FIRMWAREPKG=$(find ../../slint -name "kernel-firmware*txz")
VERSION=$(printf "%b" "$FIRMWAREPKG"|sed 's/.*-\([^-]*\)-[^-]*-[^-]*$/\1/')
spkg -qq --root="$CWD"/MODULES "$KERNELPKG"
spkg -qq --root="$CWD"/FIRMWARE/firmware "$FIRMWAREPKG"
cd "$CWD"/MODULES/lib/modules/"$KERNELVERSION" || exit
find . -name '*.ko.zst'|while read -r i; do
	if modinfo "$i"|grep -q "^firmware"; then
		echo "$i" >> "$CWD"/FIRMWARE/modules_with_firmware
	fi
done
# We keep only modules including a firmware we need during installation
cd "$CWD"/FIRMWARE || exit
sed '
\#/atm/#d
\#/crypto/#d
\#/gpu/#d
\#/hid/#d
\#/infiniband/#d
\#/isdn/#d
\#/media/#d
\#/mfd/#d
\#/can/softing/#d
\#/netronome/#d
\#/hamradio/#d
\#/scsi/#d
\#/tty/#d
\#/usb/host/#d
\#/usb/misc/#d
\#/usb/serial/#d
\#/video/#d
\#/sound/#d
\#/usb/storage/#d
' modules_with_firmware > modules_with_needed_firmware
# We list the firmware files for the modules we kept
cd "$CWD"/MODULES/lib/modules/"$KERNELVERSION" || exit
while read -r i; do
	modinfo "$i"|grep "^firmware"|while read -r j; do
		echo "$j"|sed 's#.* ##'
	done >>  "$CWD"/FIRMWARE/firmware_files_unsorted
done < "$CWD"/FIRMWARE/modules_with_needed_firmware
cd "$CWD"/FIRMWARE || exit
sort firmware_files_unsorted|uniq > firmware_files
cd "$CWD"/FIRMWARE/firmware || exit
 while read -r i; do
	p=$(find lib/firmware -type f |grep "${i}")
	if [ "$p" ]; then
	echo "$p" >>  "$CWD"/FIRMWARE/regular_files
	fi
 done < "$CWD"/FIRMWARE/firmware_files
 while read -r i; do
	p=$(find lib/firmware -type l |grep "${i}")
	if [ "$p" ]; then
	echo "$p" >>  "$CWD"/FIRMWARE/symbolic_links

	fi
 done < "$CWD"/FIRMWARE/firmware_files
cd "$CWD"/FIRMWARE|| exit
sort regular_files|uniq > regular_uniqs
sort symbolic_links|uniq > symbolic_uniqs
while read -r p; do
	mkdir -p "$PKG"/"$(dirname "$p")"
	cp -a "$p" "$PKG"/"$(dirname "$p")"
done < "$CWD"/FIRMWAREregular_uniqs
while read -r p; do
	mkdir -p "$PKG"/"$(dirname "$p")"
	cp -a "$p" "$PKG"/"$(dirname "$p")"
done < "$CWD"/FIRMWARE/symbolic_uniqs
(cd "$PKG" || exit
mkdir install
echo $PKGNAM > "$CWD"/FIRMWARE/PKGNAM
echo "firmware-installer: firmware-installer (firmware to allow a net install)" > install/slack-desc
/sbin/makepkg -l y -c n "$CWD"/$PKGNAM-"$VERSION"-"$ARCH"-$BUILD.txz
)