molecules/scripts/inner_source_chroot_update.sh

#!/bin/bash

TARGET="${1}"

/usr/sbin/env-update
. /etc/profile

# Setup environment vars
export ETP_NONINTERACTIVE=1
if [ -d "/usr/portage/licenses" ]; then
	export ACCEPT_LICENSE="$(ls /usr/portage/licenses -1 | xargs)"
fi

PACKAGES_TO_REMOVE=(
	"app-i18n/man-pages-da"
	"app-i18n/man-pages-de"
	"app-i18n/man-pages-fr"
	"app-i18n/man-pages-it"
	"app-i18n/man-pages-nl"
	"app-i18n/man-pages-pl"
	"app-i18n/man-pages-ro"
	"app-i18n/man-pages-ru"
	"app-i18n/man-pages-zh_CN"
)

safe_run() {
	local updated=0
	for ((i=0; i < 42; i++)); do
		"${@}" && {
			updated=1;
			break;
		}
		if [ ${i} -gt 6 ]; then
			sleep 3600 || return 1
		else
			sleep 1200 || return 1
		fi
	done
	if [ "${updated}" = "0" ]; then
		return 1
	fi
	return 0
}

FORCE_EAPI=2 safe_run equo update || exit 1

for repo in $(equo repo list -q); do
	echo "Optimizing mirrors for ${repo}"
	equo repo mirrorsort "${repo}"  # ignore errors
done

safe_run equo upgrade --fetch || exit 1
equo upgrade --purge || exit 1
equo remove "${PACKAGES_TO_REMOVE[@]}" # ignore
echo "-5" | equo conf update

# check if a kernel update is needed
kernel_target_pkg="$(equo match -q --installed virtual/linux-binary)"
current_kernel=$(equo match --installed "${kernel_target_pkg}" -q --showslot)

# Do not pick for now latest kernel, but fix it to 4.14
#available_kernel=$(equo match "${kernel_target_pkg}" -q --showslot)
available_kernel="sys-kernel/linux-sabayon:4.14"

if [ "${current_kernel}" != "${available_kernel}" ] && \
	[ -n "${available_kernel}" ] && [ -n "${current_kernel}" ]; then
	echo
	echo "@@ Upgrading kernel to ${available_kernel}"
	echo
	safe_run kernel-switcher switch "${available_kernel}" || exit 1
	equo remove "${current_kernel}" || exit 1
	# now delete stale files in /lib/modules
	for slink in $(find /lib/modules/ -type l); do
		if [ ! -e "${slink}" ]; then
			echo "Removing broken symlink: ${slink}"
			rm "${slink}" # ignore failure, best effort
			# check if parent dir is empty, in case, remove
			paren_slink=$(dirname "${slink}")
			paren_children=$(find "${paren_slink}")
			if [ -z "${paren_children}" ]; then
				echo "${paren_slink} is empty, removing"
				rmdir "${paren_slink}" # ignore failure, best effort
			fi
		fi
	done
else
	echo "@@ Not upgrading kernels:"
	echo "Current: ${current_kernel}"
	echo "Avail:   ${available_kernel}"
	echo
fi

# keep /lib/modules clean at all times
for moddir in $(find /lib/modules -maxdepth 1 -type d -empty); do
	echo "Cleaning ${moddir} because it's empty"
	rmdir "${moddir}"
done

rm -rf /var/lib/entropy/client/packages

# copy Portage config from sabayonlinux.org entropy repo to system
for conf in package.mask package.unmask package.keywords make.conf package.use; do
	repo_path=/var/lib/entropy/client/database/*/sabayonlinux.org/standard
	repo_conf=$(ls -1 ${repo_path}/*/*/${conf} | sort | tail -n 1 2>/dev/null)
	if [ -n "${repo_conf}" ]; then
		target_path="/etc/portage/${conf}"
		if [ ! -d "${target_path}" ]; then # do not touch dirs
			cp "${repo_conf}" "${target_path}" # ignore
		fi
	fi
done

# split config file
for conf in 00-sabayon.package.use 00-sabayon.package.mask \
	00-sabayon.package.unmask 00-sabayon.package.keywords; do
	repo_path=/var/lib/entropy/client/database/*/sabayonlinux.org/standard
	repo_conf=$(ls -1 ${repo_path}/*/*/${conf} | sort | tail -n 1 2>/dev/null)
	if [ -n "${repo_conf}" ]; then
		target_path="/etc/portage/${conf/00-sabayon.}/${conf}"
		target_dir=$(dirname "${target_path}")
		if [ -f "${target_dir}" ]; then # remove old file
			rm "${target_dir}" # ignore failure
		fi
		mkdir -p "${target_dir}" # ignore failure
		cp "${repo_conf}" "${target_path}" # ignore

	fi
done

# Dracut initramfs generation for livecd
# If you are reading this ..beware! this step should be re-done by Installer post-install, without the options needed to boot from live! (see kernel eclass for reference)
current_kernel=$(equo match --installed "${kernel_target_pkg}" -q --showslot) #Update it! we may have upgraded
if equo s --verbose --installed $current_kernel | grep -q " dracut"; then

  #ACCEPT_LICENSE=* equo upgrade # upgrading all. this ensures that minor kernel upgrades don't breaks dracut initramfs generation
  # Getting Package name and slot from current kernel (e.g. current_kernel=sys-kernel/linux-sabayon:4.7 -> K_SABKERNEL_NAME = linux-sabayon-4.7 )
  PN=${current_kernel##*/}
  K_SABKERNEL_NAME="${K_SABKERNEL_NAME:-${PN/${PN/-/}-}}"
  K_SABKERNEL_NAME="${K_SABKERNEL_NAME/:/-}"

  # Grab kernel version from RELEASE_LEVEL
  kver=$(cat /etc/kernels/$K_SABKERNEL_NAME*/RELEASE_LEVEL)
  karch=$(uname -m)
  echo "Generating dracut for kernel $kver arch $karch"
  dracut -N -a dmsquash-live -a pollcdrom -o systemd -o systemd-initrd -o systemd-networkd -o dracut-systemd --force --kver=${kver} /boot/initramfs-genkernel-${karch}-${kver}

fi


# Update /usr/portage/profiles
# This is actually not strictly needed but several
# gentoo tools expect to find valid /etc/make.profile symlink
# This part is best effort, if it will be able to complete
# correctly, fine.
# For a list of mirrors, see: http://www.gentoo.org/main/en/mirrors-rsync.xml
RSYNC_URI="rsync://rsync.at.gentoo.org/gentoo-portage/profiles"
PROFILES_DIR="/usr/portage/profiles"
safe_run rsync -av -H -A -X --delete-during "${RSYNC_URI}/" "${PROFILES_DIR}/"

equo query list installed -qv > /etc/sabayon-pkglist