ZFSBootMenu-Root-Install/debian.sh

#!/bin/bash
set -euo pipefail

baseDir="$(realpath "$(dirname "${0}")")"

source \
	/etc/os-release
source \
	"${baseDir}/system.conf"


if [[ "${1}" == '--live' ]]; then
	if [[ "${ID}" == 'debian' ]] && [[ ! "$(hostname)" == "debian-live" ]]; then
		cat << EOF | tee /etc/apt/sources.list.d/contrib.sources 1> /dev/null
Enabled:		yes
Types:			deb
URIs:			http://deb.debian.org/debian/
Suites:			${VERSION_CODENAME}
Components:		contrib
Signed-By:		/usr/share/keyrings/debian-archive-keyring.gpg
EOF
	fi

	apt \
		--update \
		install \
		--yes \
		mmdebstrap \
		gdisk \
		linux-headers-generic \
		systemd-timesyncd \
		whois \
		zfsutils-linux
fi

if [[ "${1}" == '--mmdebstrap' ]]; then
	packages=(\
ca-certificates \
console-setup \
cryptsetup \
curl \
dosfstools \
dpkg-dev \
efibootmgr \
ethtool \
firmware-{ast,atheros,bnx{2,2x},brcm80211,iwlwifi,libertas,linux,realtek,zd1211} \
flatpak \
keyboard-configuration \
linux-{headers,image}-amd64 \
locales \
nano \
network-manager \
openssh-{client,server} \
popularity-contest \
printer-driver-all \
rsync \
systemd-timesyncd \
tasksel \
zfs-initramfs \
zstd\
)

	include="--include=${packages[0]}"

	for ((i=1;i<${#packages[@]};i++)); do
		include+=" --include=${packages[${i}]}"
	done

	mmdebstrap \
		--skip=check/empty \
		--components=main,non-free-firmware,contrib \
		--mode=root \
		--format=directory \
		${include} \
		"${VERSION_CODENAME}" \
		/mnt
fi

if [[ "${1}" == '--network-interfaces' ]]; then
	networkInterface=($(ip -br addr show | sed 's| .*$||g' | grep -v '^lo' | grep -v 'tailscale' | grep -v '^wg'))
	shopt -s extglob

	for ((i = 0; i < ${#networkInterface[@]}; i++)); do
		cat << EOF | tee /mnt/etc/network/interfaces.d/${networkInterface[$i]} &> /dev/null
allow-hotplug	${networkInterface[$i]}
iface		${networkInterface[$i]}	inet	dhcp
EOF
	done
fi

if [[ "${1}" == '--sources' ]]; then
	cat << EOF | tee /mnt/etc/apt/sources.list.d/${VERSION_CODENAME}.sources &> /dev/null
# ${VERSION_CODENAME^}
Enabled:		yes
Types:			deb deb-src
URIs:			http://deb.debian.org/debian/
Suites:			${VERSION_CODENAME}
Components:		main non-free-firmware contrib
Signed-By:		/usr/share/keyrings/debian-archive-keyring.gpg

# ${VERSION_CODENAME^} Security
Enabled:		yes
Types:			deb deb-src
URIs:			http://deb.debian.org/debian-security/
Suites:			${VERSION_CODENAME}-security
Components:		main non-free-firmware contrib
Signed-By:		/usr/share/keyrings/debian-archive-keyring.gpg

# ${VERSION_CODENAME^} Updates
Enabled:		yes
Types:			deb deb-src
URIs:			http://deb.debian.org/debian/
Suites:			${VERSION_CODENAME}-updates
Components:		main non-free-firmware contrib
Signed-By:		/usr/share/keyrings/debian-archive-keyring.gpg
EOF

	rm /mnt/etc/apt/sources.list
fi

if [[ "${1}" == '--dpkg-reconfigure' ]]; then
	cat << EOF

Regardless of the language(s) you choose, be sure to enable 'en_US.UTF-8'!
Press any key to continue...
EOF

	read -srn 1

	dpkg-reconfigure \
		locales \
		tzdata \
		keyboard-configuration \
		console-setup
fi

if [[ "${1}" == '--purge-os-prober' ]]; then
	apt \
		purge \
		--yes \
		os-prober
fi

if [[ "${1}" == '--network-manager' ]]; then
	cp \
		/etc/NetworkManager/NetworkManager.conf \
		/etc/NetworkManager/NetworkManager.conf.orig

	cat \
		/etc/NetworkManager/NetworkManager.conf.orig | \
		sed 's|managed=false|managed=true|' | \
		tee /etc/NetworkManager/NetworkManager.conf &> /dev/null
fi

if [[ "${1}" == '--contrib' ]]; then
	cat << EOF | tee --append /etc/apt/sources.list.d/${VERSION_CODENAME}.sources &> /dev/null

# ${VERSION_CODENAME^} Backports
Enabled:		yes
Types:			deb deb-src
URIs:			http://deb.debian.org/debian/
Suites:			${VERSION_CODENAME}-backports
Components:		main non-free-firmware contrib
Signed-By:		/usr/share/keyrings/debian-archive-keyring.gpg
EOF

	cat << EOF | tee /etc/apt/preferences.d/backports.pref &> /dev/null
Package:		*
Pin:			release	n=${VERSION_CODENAME}*
Pin-Priority:	990

Package:		linux-*
Pin:			release	n=${VERSION_CODENAME}-backports
Pin-Priority:	-1
EOF

	if [[ "${VERSION_CODENAME}" == 'bookworm' ]]; then
	cat << EOF | tee --append /etc/apt/preferences.d/backports.pref &> /dev/null

Package: /wayland/
Pin: release n=${VERSION_CODENAME}-backports
Pin-Priority: -1
EOF
	fi
fi

if [[ "${1}" == '--tasksel' ]]; then
	if [[ ! -f /usr/bin/tasksel ]]; then
		apt \
			--update \
			install \
			--yes \
			tasksel
	fi

	tasksel \
		--new-install
fi

if [[ "${1}" == '--initramfs' ]]; then
	printf \
		"UMASK=0077\n" | \
		tee /etc/initramfs-tools/conf.d/umask.conf &> /dev/null

	update-initramfs \
		-c \
		-k all
fi

if [[ "${1}" == '--logrotate' ]]; then
	for file in /etc/logrotate.d/* ; do
		if grep -Eq "(^|[^#y])compress" "$file" ; then
			sed -i -r "s/(^|[^#y])(compress)/\1#\2/" "$file"
		fi
	done
fi

if [[ "${1}" == '--systemctl-enable' ]]; then
	systemctl \
		enable \
		zfs.target
	systemctl \
		enable \
		zfs-import-cache
	systemctl \
		enable \
		zfs-mount
	systemctl \
		enable \
		zfs-import.target
fi