Gestionnaire de fichiers - Editer - /usr/lib/runit-helper/runit-helper
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#!/bin/sh # Copyright (C) 2017 Dmitry Bogatov <KAction@gnu.org> # Author: Dmitry Bogatov <KAction@gnu.org> # 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 3 # 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, see <http://www.gnu.org/licenses/>. set -e # rescan and invoke-rc.d actions are done only if runit is init is_runit () { [ -f /run/runit.stopit ] } is_installed () { [ -f /sbin/runit ] } # No-Op if the service is not enabled # sv can't send signals to a disabled service is_enabled () { [ -h /etc/service/"$NAME" ] } # workaround for races as in #919296 ok_pipe () { [ -p "/etc/sv/$NAME/supervise/ok" ] } postinst () { local action="${1}" previous="${2:-}" # loguser transition: to be removed when the transition is done # we do ths before enable to avoid races # old loguser is 'runit-log', new is '_runit-log' # 'current' and 'lock' files in the run directory must be owned by # the new loguser if [ "${ENABLE}" = yes ] && \ [ -f "/var/log/runit/$NAME/current" ] ; then loguser="$(stat --format '%U' /var/log/runit/$NAME/current)" if [ "${loguser}" = "runit-log" ]; then sv d "/etc/sv/$NAME/log" >/dev/null || true chown _runit-log:adm /var/log/runit/$NAME/current chown _runit-log:adm /var/log/runit/$NAME/lock fi fi # It is important to not override local admin # decision (see #899242 and 942323 ). if [ "${ENABLE}" = yes ] && \ [ ! -h "/etc/runit/runsvdir/default/.$NAME" ] ; then # avoid infinte loop of symlinks if [ ! -h "/etc/runit/runsvdir/default/$NAME" ]; then ln -sf "/etc/sv/$NAME" "/etc/runit/runsvdir/default/$NAME" if is_runit ; then # always force a rescan after enable kill -s ALRM 1 fi fi fi # ENABLE=no is always a no-op # Upgrade will changes destination of /etc/sv/{name}/supervise symlink from # /var/* to /run/*. If service was running, it important that its supervise # directory is still accessible via /etc/sv/{name}/supervise symlink. # # This code must be removed once there are no more packages with # /etc/sv/{name}/supervise -> /var/lib/runit/supervise/{name} mkdir -p /run/runit/supervise old="/var/lib/runit/supervise/${NAME}" new="/run/runit/supervise/${NAME}" if [ -d "${old}" ] ; then ln -sf "${old}" "${new}" fi old="/var/lib/runit/log/supervise/${NAME}" new="/run/runit/supervise/${NAME}.log" if [ -d "${old}" ] ; then ln -sf "${old}" "${new}" fi # loguser transition: to be removed when the transition is done # we do this after enable to reduce chance of races if [ "${ENABLE}" = yes ] && \ [ -f "/etc/sv/$NAME/log/run" ] ; then if is_installed ; then sv u "/etc/sv/$NAME/log" >/dev/null || true fi fi #invoke-rc.d if is_runit ; then if [ "${action}" = 'configure' ] || [ "${action}" = 'abort-upgrade' ] || \ [ "${action}" = 'abort-deconfigure' ] || [ "${action}" = 'abort-remove' ] ; then if [ "${ONUPGRADE}" = restart ] && [ -n "${previous}" ] && is_enabled && ok_pipe ; then sv restart ${NAME} || true elif [ "${ONUPGRADE}" = reload ] && [ -n "${previous}" ] && is_enabled && ok_pipe ; then sv reload ${NAME} || true elif is_enabled && ok_pipe ; then # ONUPGRADE=stop || ONUPGRADE=nostop # ONUPGRADE= restart || reload and [ ! -n "${previous}" ] sv start ${NAME} || true else return 0 fi fi fi } prerm () { local action="${1}" # invoke-rc.d if is_runit ; then if [ "${ONUPGRADE}" = stop ] && is_enabled && ok_pipe ; then sv stop ${NAME} || true elif [ "${action}" = 'remove' ] && is_enabled && ok_pipe ; then # ONUPGRADE=restart || ONUPGRADE=nostop sv stop ${NAME} || true else return 0 fi fi } postrm () { local action="${1}" if [ "${action}" != 'purge' ] && [ "${action}" != 'remove' ] ; then return fi # When "ENABLE=no" the $NAME link is an admin decision # so we don't remove it. # Links in other runsvdirs is responsibility of administrator. if [ "${action}" = 'remove' ] && [ "${ENABLE}" = yes ] ; then rm -f "/etc/runit/runsvdir/default/$NAME" fi # If runscript was never invoked, there will be no files # in this directory, and `dpkg' will remove it. In this case, # we have nothing to do. for supervise in "/var/lib/runit/supervise/$NAME" \ "/var/lib/runit/log/supervise/$NAME" ; do if [ -d "$supervise" ] ; then # Actually only `down' may be absent, but it does not # matter. for file in control lock ok pid stat status down ; do rm -f "$supervise/$file" done # It should be empty now. If it is not, it means that # system administrator put something there. It is very # stupid, but will of user is sacred, and directory is # left as-is in such case. # # NOTE: Non-POSIX option is used. The day coreutils will # no longer be essential, it will require a fix. rmdir --ignore-fail-on-non-empty "$supervise" fi done if [ "${action}" = 'purge' ] ; then rm -f "/etc/runit/runsvdir/default/$NAME" rm -f "/etc/runit/runsvdir/default/.$NAME" readonly logdir="/var/log/runit/${NAME}" if [ -d "${logdir}" ] ; then rm -r "${logdir}" fi fi } "$@" # vim: sw=4:et
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