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#!/bin/sh
#
#    Copyright (C) 2024 Luis Guzman <ark@switnet.org>
#    Copyright (C) 2008-2023  Ruben Rodriguez <ruben@trisquel.info>
#    Copyright (C) 2019 David Trudgian <dave@trudgian.net>
#
#    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
#

HWEKR=5.15

# DI_ENABLED = 1 enables udeb build, 0 or any other value disables them.
DI_ENABLED=1
# HWE_ENABLED = 1 enables HWE stack build, 0 or any other value disables it.
HWE_ENABLED=0

[ $HWE_ENABLED != 1 ] && \
DEBIAN_PATH=debian.master && \
CONTROL_PACKAGE=linux
[ $HWE_ENABLED = 1 ] && \
DEBIAN_PATH=debian.hwe-$HWEKR && \
CONTROL_PACKAGE=linux-hwe-$HWEKR
drivers/bluetooth
drivers/gpu/drm/i915
drivers/gpu/drm/amd/pm/powerplay
drivers/gpu/drm/radeon
drivers/net/wireless/intel/ipw2x00
drivers/net/wireless/intel/iwlegacy
drivers/net/wireless/intel/iwlwifi
drivers/net/wireless/realtek/rtl8xxxu
drivers/net/wireless/realtek/rtlwifi
drivers/net/wireless/realtek/rtlwifi/rtl8188ee
drivers/net/wireless/realtek/rtlwifi/rtl8192ce
drivers/net/wireless/realtek/rtlwifi/rtl8192cu
drivers/net/wireless/realtek/rtlwifi/rtl8192de
drivers/net/wireless/realtek/rtlwifi/rtl8192ee
drivers/net/wireless/realtek/rtlwifi/rtl8192se
drivers/net/wireless/realtek/rtlwifi/rtl8723ae
drivers/net/wireless/realtek/rtlwifi/rtl8723be
drivers/net/wireless/realtek/rtlwifi/rtl8821ae
drivers/net/wireless/broadcom/brcm80211
# HWEKR - 5.15
[ $HWE_ENABLED != 1 ] && \
PRESERVEDIRS="$PRESERVEDIRS
drivers/gpu/drm/r128"
TMPDIR=$(mktemp -d preserve-XXXX)
PRESERVE=$(grep '^+++' $DATA/silent-accept-firmware.patch | /bin/sed 's/+++ //; s/\t.*//;' | cut -d/ -f2- | sort -u )
for FILE in $PRESERVE; do
  cp $FILE $TMPDIR --parents -a
  cp $DIR $TMPDIR --parents -a
sh $DATA/deblob-$HWEKR
echo "Reverting deblobbing for files patched by silent-accept-firmware"
cp $TMPDIR/* . -av
rm -rf $TMPDIR
for PATCH in $DATA/*.patch ; do
  echo $PATCH
  patch --no-backup-if-mismatch -p1 < $PATCH
done

## Simple test for finding missing cases of silent_accept_firmware method
#  grep -i "load.*firmware.*%" $PRESERVEDIRS -r|grep -vi info
#  grep -i "load.*ucode.*%" $PRESERVEDIRS -r|grep -vi info
# Re-enable udebs
enable_udebs() {

#Apply udeb/d-i related patches.
for PATCH in $DATA/udeb/*.patch ; do
  echo $PATCH
  patch --no-backup-if-mismatch -p1 < $PATCH
done

cp $DATA/udeb/5-udebs.mk debian/rules.d
cp -a $DATA/udeb/d-i $DEBIAN_PATH

cat << EOF >> debian/control
Package: $CONTROL_PACKAGE-udebs-generic
Build-Profiles: <!stage1> <!noudeb> <!cross> <!autopkgtest>
XC-Package-Type: udeb
Section: debian-installer
Architecture: amd64 armhf arm64 ppc64el s390x
Depends: \${udeb:Depends}
Description: Metapackage depending on kernel udebs
 This package depends on the all udebs that the kernel build generated,
 for easier version and migration tracking.

Package: $CONTROL_PACKAGE-udebs-generic-lpae
Build-Profiles: <!stage1> <!noudeb> <!cross> <!autopkgtest>
XC-Package-Type: udeb
Section: debian-installer
Architecture: armhf
Depends: \${udeb:Depends}
Description: Metapackage depending on kernel udebs
 This package depends on the all udebs that the kernel build generated,
 for easier version and migration tracking.

Package: $CONTROL_PACKAGE-udebs-lowlatency
Build-Profiles: <!stage1> <!noudeb> <!cross> <!autopkgtest>
XC-Package-Type: udeb
Section: debian-installer
Architecture: amd64
Depends: \${udeb:Depends}
Description: Metapackage depending on kernel udebs
 This package depends on the all udebs that the kernel build generated,
 for easier version and migration tracking.
EOF

cat << EOF >> $DEBIAN_PATH/control.d/flavour-control.stub
Package: SRCPKGNAME-udebs-FLAVOUR
Build-Profiles: <!stage1> <!noudeb> <!cross> <!autopkgtest>
XC-Package-Type: udeb
Section: debian-installer
Architecture: ARCH
Depends: \${udeb:Depends}
Description: Metapackage depending on kernel udebs
 This package depends on the all udebs that the kernel build generated,
 for easier version and migration tracking.
EOF

sed '/include.*2-binary-arch.mk/a\\n# Rules for building the udebs ($(DEBIAN)-installer)\ninclude $(DROOT)/rules.d/5-udebs.mk' -i debian/rules
sed 's/+= binary-debs/+= binary-udebs/' -i debian/rules.d/2-binary-arch.mk

for i in dctrl-tools kernel-wedge
do
    sed "/Build-Depends:/a\ $i <\!stage1> <\!noudeb> <\!cross> <\!autopkgtest>," -i	debian/control \
											$DEBIAN_PATH/control.stub.in
done
}

[ "$DI_ENABLED" = "1" ] && enable_udebs
# Wipe dkms-versions
# lists zfs / v4l2loopback versions
truncate -s 0 $(find -name dkms-versions)
# Remove ZFS - adjusting to each release
rm debian/scripts/dkms-build-configure--zfs

for i in $(grep -lr zfs $DEBIAN_PATH/reconstruct \
		$DEBIAN_PATH/abi/*/*.modules \
		debian/rules.d/2-binary-arch.mk \
		$DEBIAN_PATH/rules.d/ \
		debian/rules \
		$DEBIAN_PATH/control.d/)
do
     sed  -i '/zfs/d' $i
done

[ "$DI_ENABLED" = "1" ] && \
for i in $(grep -lr zfs   $DEBIAN_PATH/d-i/modules/fs-core-modules) ; \
do \
    sed  -i '/zfs/d' $i ; \
done

#/bin/sed 's/spl-dkms, zfs-dkms//' -i debian/control \
#                                     $DEBIAN_PATH/control.d/vars.generic \
#                                     $DEBIAN_PATH/control.d/vars.*

#/bin/sed -i '/ifeq ($(do_zfs),false)/,/endif$/d' debian/rules
# Remove VBox
#sed -i '/vbox/s|true|false|' $DEBIAN_PATH/rules.d/amd64.mk

# Remove v4l2loopback
for i in $(grep -lr v4l2loopback $DEBIAN_PATH/reconstruct \
			$DEBIAN_PATH/abi/*/*.modules \
			debian/rules.d/2-binary-arch.mk \
			$DEBIAN_PATH/rules.d/ \
			debian/rules \
			$DEBIAN_PATH/control.d/)
do
    sed  -i '/v4l2loopback/d' $i
done
[ "$DI_ENABLED" = "1" ] && \
for i in $(grep -lr v4l2loopback $DEBIAN_PATH/d-i/modules/fs-core-modules) ; \
do \
    sed  -i '/v4l2loopback/d' ; \
done
#/bin/sed -i '/ifeq ($(do_v4l2loopback),false)/,/endif$/d' debian/rules
#/bin/sed -i '/do_v4l2loopback/d' debian.master/rules.d/*
# Remove nvidia driver
rm -rf debian/scripts/dkms-build--nvidia-N
for i in $(grep -l dkms-build--nvidia-N $DEBIAN_PATH/reconstruct)
do
    sed -i '/dkms-build--nvidia-N/d' $i
done
for i in $(grep -lr wireguard $DEBIAN_PATH/reconstruct \
			$DEBIAN_PATH/abi/*/*.modules \
			debian/rules.d/2-binary-arch.mk \
			$DEBIAN_PATH/rules.d/ \
			$DEBIAN_PATH/control.d/)
do
    sed  -i '/wireguard/d' $i
done
[ "$DI_ENABLED" = "1" ] && \
for i in $(grep -lr wireguard $DEBIAN_PATH/d-i/modules/fs-core-modules) ; \
do \
    sed  -i '/wireguard/d' $i ; \
done

#/bin/sed '/ifeq ($(do_dkms_wireguard),false)/,/endif$/d' -i debian/rules
#sed '/do_dkms_wireguard/d' -i debian/rules.d/2-binary-arch.mk
#/bin/sed '/do_dkms_wireguard/d' -i $DEBIAN_PATH/rules.d/*
# Compile with less modules and avoid abi check
echo -e 'skipmodule = true\nskipabi = true' | tee -a 	$DEBIAN_PATH/rules.d/0-common-vars.mk \
							debian/rules.d/0-common-vars.mk
# Skip the retpoline check as there is no last release to check against
echo 'skipretpoline = true' | tee -a 	$DEBIAN_PATH/rules.d/0-common-vars.mk \
					debian/rules.d/0-common-vars.mk
# Do not label packages as unsigned
sed '/bin_pkg_name_unsigned/s/linux-image-unsigned/linux-image/' -i debian/rules.d/0-common-vars.mk
sed 's/.unsigned//' -i debian/scripts/control-create
sed '/Package:/s/.unsigned//;/This package /s/.unsigned//' -i debian/control

line=$(grep -n ')-Ubuntu' debian/rules.d/0-common-vars.mk|cut -d: -f1)
sed $(expr $line - 1 ),$(expr $line + 1 )d debian/rules.d/0-common-vars.mk -i
for i in $(grep -rl family=ubuntu debian/rules.d/)
do
    sed -i s/family=ubuntu/family=trisquel/ $i
done
cat << EOF > $DEBIAN_PATH/etc/kernelconfig
archs="i386 amd64 armhf arm64 ppc64el"
family='trisquel'
EOF
rename s/ubuntu/trisquel/ debian.*/config/config.common.ubuntu
for i in $(grep -lr config.common.ubuntu debian*/)
do
    sed -i 's|config.common.ubuntu|config.common.trisquel|g' $i
done
find debian* -type f -name *control* -exec sed 's/ with Ubuntu patches//; s/Linux/Linux-libre/g' -i {} \;

# Descriptions should not change based on the build arch
sed 's/on DESC//; s/PKGVER on/PKGVER/; /^ DESC.$/d;' debian*/control.d/flavour-control.stub -i
#sed '/^firmware/d' ./debian*/abi/fwinfo -i
#echo > ./debian.master/d-i/firmware/nic-modules
#echo > ./debian.master/d-i/firmware/scsi-modules
# Disable using udev as a fallback for firmware loading
replace "CONFIG_FW_LOADER_USER_HELPER=y" "CONFIG_FW_LOADER_USER_HELPER=n" $DEBIAN_PATH/config

# Disable aaeon & ubuntu odm drivers, remove on both paths to match annotations.
for i in AAEON CONFIG_UBUNTU_ODM_DRIVERS
do
    grep -rl "$i" debian.*/config/annotations | \
    xargs -r sed -i "/$i/d"
done

# Custom changes for linux and linux-hwe.
if [ $HWE_ENABLED != 1 ]; then
## HWEKR - 5.15
    ## Removal wireguard 5.15 specific.
    sed '/ifeq ($(do_dkms_wireguard),false)/,/endif$/d' -i debian/rules
    ## Fix ports build
    sed -i "/CONFIG_FW_LOADER_USER_HELPER/s|'armhf': 'y',|'armhf': 'n',|g" debian.master/config/annotations
    sed -i "/CONFIG_FW_LOADER_USER_HELPER/s|'arm64': 'y',|'arm64': 'n',|g" debian.master/config/annotations
    sed -i "/CONFIG_FW_LOADER_USER_HELPER/s|'ppc64el': 'y',|'ppc64el': 'n',|g" debian.master/config/annotations
    sed -i "/CONFIG_FW_LOADER_USER_HELPER_FALLBACK/s|'armhf': 'n',|'armhf': '-',|g" debian.master/config/annotations
    sed -i "/CONFIG_FW_LOADER_USER_HELPER_FALLBACK/s|'arm64': 'n',|'arm64': '-',|g" debian.master/config/annotations
    sed -i "/CONFIG_FW_LOADER_USER_HELPER_FALLBACK/s|'ppc64el': 'n',|'ppc64el': '-',|g" debian.master/config/annotations
    ## Tweak 5.15.0-94.104
    sed -i "/CONFIG_GPIO_M058SSAN/s|'amd64': 'm'|'amd64': '-'|" debian.master/config/annotations
    sed -i "/CONFIG_RTC_DRV_PCF85263/s|'amd64': 'm'|'amd64': '-'|" debian.master/config/annotations
else
# HWEKR - 6.5+
    ## Disable ppc64el Werroron amdgpu
    for i in $(grep -rl CONFIG_DRM_AMDGPU_WERROR debian.*/config/annotations)
    do
        sed -i "/CONFIG_DRM_AMDGPU_WERROR/s|'ppc64el': 'y'|'ppc64el': 'n'|" $i
    done
    ## Remove disabled modules from generic list (starting at 6.2)
    for module in gpio-aaeon hwmon-aaeon leds-aaeon mfd-aaeon spl
    do
        for i in $(grep -rl "^$module$" $DEBIAN_PATH/abi/*/)
        do
            sed -i "/^$module$/d" $i
        done
    done
fi

grep -rl '^Vcs-Git:' | \
  xargs sed -i "s|^Vcs-Git:.*|Vcs-Git: https://gitlab.trisquel.org/trisquel/package-helpers|"
changelog "Removed non-free bits"

cp debian/changelog debian.master/changelog
cp debian/changelog $DEBIAN_PATH/changelog