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path: root/debian/open-infrastructure-container-tools.postinst
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#!/bin/sh

set -e

CONFFILE="/etc/compute-tools/container.conf"

Install ()
{
	DEFAULT="${1}"
	TARGET="${2}"

	mkdir -p "${DEFAULT}" > /dev/null 2>&1 || true
	mkdir -p "${TARGET}" > /dev/null 2>&1 || true

	if [ "${TARGET}" != "${DEFAULT}" ]
	then
		if [ -h "${DEFAULT}" ]
		then
			rm -f "${DEFAULT}"
			ln -s "${TARGET}" "${DEFAULT}"
		else
			if [ -e "${DEFAULT}" ] && [ -z "$(ls -A ${DEFAULT})" ]
			then
				rmdir "${DEFAULT}"
				ln -s "${TARGET}" "${DEFAULT}"
			fi
		fi
	fi

	if ! dpkg-statoverride --list "${DEFAULT}" > /dev/null 2>&1 &&
	   ! dpkg-statoverride --list "${TARGET}" > /dev/null 2>&1
	then
		chmod 0700 "${TARGET}"
		chown root:root "${TARGET}"

		chmod 0700 "${DEFAULT}"
		chown root:root "${DEFAULT}"
	fi
}

Upgrade ()
{
		# upgrade from buster: conffile
		if [ -e /etc/open-infrastructure/container.conf ] && [ ! -e "${CONFFILE}" ]
		then
			mv /etc/open-infrastructure/container.conf "${CONFFILE}"
			rmdir /etc/open-infrastructure > /dev/null 2>&1 || true
		fi

		# upgrade from buster: hooks
		for HOOK in ${HOOKS}/*
		do
			NAME="$(basename ${HOOK})"
			TARGET="$(readlink -m ${HOOK})"

			case "${TARGET}" in
				/usr/share/open-infrastructure/container/hooks/pre-create.git-pull.sh)
					rm -f "${HOOKS}/${NAME}"
					ln -sf /usr/share/compute-tools/hooks/pre-get.git-pull.sh "${HOOKS}/pre-get.git-pull.sh"
					ln -sf /usr/share/compute-tools/hooks/pre-build.git-pull.sh "${HOOKS}/pre-build.git-pull.sh"
					;;

				/usr/share/open-infrastructure/container/hooks/*)
					ln -sf "$(echo ${TARGET} | sed -e 's|/usr/share/open-infrastructure/container/hooks/|/usr/share/compute-tools/hooks/|')" "${HOOKS}/${NAME}"
					;;

				*)
					if [ -e "/usr/share/compute-tools/hooks/${NAME}" ]
					then
						rm -f "${HOOKS}/${NAME}"
						ln -sf "/usr/share/compute-tools/hooks/${NAME}" "${HOOKS}/${NAME}"
					fi
					;;
			esac
		done

		# upgrade from buster: keys
		if [ -e /etc/open-infrastructure/container/keys ]
		then
			mv /etc/open-infrastructure/container/keys/* "${KEYS}" > /dev/null 2>&1 || true
			rmdir /etc/open-infrastructure/container/keys > /dev/null 2>&1 || true
			rm -f /etc/open-infrastructure/container/keys > /dev/null 2>&1 || true
			rmdir -p /etc/open-infrastructure/container > /dev/null 2>&1 || true
		fi

		# upgrade from buster: logfiles
		if ls /var/log/open-infrastructure/container.log* > /dev/null 2>&1
		then
			if [ -e /var/log/compute-tools ]
			then
				mv /var/log/open-infrastructure/* /var/log/compute-tools 2>&1 || true
				rmdir /var/log/open-infrastructure > /dev/null 2>&1 || true
			else
				mv /var/log/open-infrastructure /var/log/compute-tools
			fi
		fi
}

case "${1}" in
	configure)
		. /usr/share/debconf/confmodule

		db_get open-infrastructure-container-tools/machines
		MACHINES="${RET:-/var/lib/machines}" # string (w/o empty)

		db_get open-infrastructure-container-tools/config
		CONFIG="${RET:-/etc/compute-tools/config}" # string (w/o empty)

		db_get open-infrastructure-container-tools/debconf
		DEBCONF="${RET:-/etc/compute-tools/debconf}" # string (w/o empty)

		db_get open-infrastructure-container-tools/hooks
		HOOKS="${RET:-/etc/compute-tools/hooks}" # string (w/o empty)

		db_get open-infrastructure-container-tools/keys
		KEYS="${RET:-/etc/compute-tools/keys}" # string (w/o empty)

		db_get open-infrastructure-container-tools/cache
		CACHE="${RET:-/var/cache/container}" # string (w/o empty)

		db_get open-infrastructure-container-tools/build-script
		SCRIPT="${RET:-debian}" # string (w/o empty)

		db_get open-infrastructure-container-tools/irc
		IRK_TARGETS="${RET}" # string (w/ empty)

		db_stop

		Install "/var/lib/machines" "${MACHINES}"
		Install "/etc/compute-tools/config" "${CONFIG}"
		Install "/etc/compute-tools/debconf" "${DEBCONF}"
		Install "/etc/compute-tools/hooks" "${HOOKS}"
		Install "/etc/compute-tools/keys" "${KEYS}"
		Install "/var/cache/container" "${CACHE}"

		Upgrade

		if [ ! -e "${CONFFILE}" ]
		then

cat > "${CONFFILE}" << EOF
# ${CONFFILE}

IRK_TARGETS="${IRK_TARGETS}"
EOF

		fi

		cp -a -f "${CONFFILE}" "${CONFFILE}.tmp"

		# If the admin deleted or commented some variables but then set
		# them via debconf, (re-)add them to the config file.

		test -z "${IRK_TARGETS}" || \
			grep -Eq '^ *IRK_TARGETS=' "${CONFFILE}" || \
			echo "IRK_TARGETS=" >> "${CONFFILE}"

		sed -e "s|^ *IRK_TARGETS=.*|IRK_TARGETS=\"${IRK_TARGETS}\"|" \
		< "${CONFFILE}" > "${CONFFILE}.tmp"

		mv -f "${CONFFILE}.tmp" "${CONFFILE}"

		if command -v sysctl > /dev/null 2>&1
		then
			sysctl -q -p /etc/sysctl.d/zz-container.conf
		fi
		;;

	abort-upgrade|abort-remove|abort-deconfigure)

		;;

	*)
		echo "postinst called with unknown argument \`${1}'" >&2
		exit 1
		;;
esac

#DEBHELPER#

case "${1}" in
	configure)
		# run after debhelper update-alternative scripts
		update-alternatives --quiet --set container_build-script "/usr/share/compute-tools/build-scripts/${SCRIPT}"
		;;
esac

exit 0