- Provide (Lua-based) file triggers and adapt systemd.spec accordingly (boo#1133764)

More specifically, file triggers handle automatically installations or updates
  of files for sysusers, tmpfiles, hwdb, journal catalog, udev rules, sysctl and
  binfmt.
  Therefore it makes a bunch of systemd rpm macros (such as %udev_hwdb_update,
  %udev_rules_update, %journal_catalog_update, %tmpfiles_create,
  %sysusers_create and so on) not needed anymore. However before considering
  simplifying your spec files beware that these changes are not available in SLE
  yet and will probably never reach the current releases (latest one being
  SLE15-SP5 as of this writing).
  Macros dealing with unit restart/enabling (such as %systemd_pre,
  %service_add_pre, %service_del_postun, ...) are still needed though. However
  reloading of systemd instances (and thus restarting of units) are delayed
  until the very end of the package install/update transaction and is now done
  only once. 
  Nevertheless to fully take advantage of file triggers, users have to activate
  a specific zypper transaction backend which is still considered as
  experimental, see bsc#1041742 for details.
- Provide a (slighlty) customized version of systemd-update-helper. Some of the
  systemd rpm macros rely now on the helper and delegate their work to it. Hence
  we don't need to rebuild all packages anymore when the content of the rpm
  macros must be updated/fixed.

OBS-URL: https://build.opensuse.org/package/show/Base:System/systemd?expand=0&rev=1390
This commit is contained in:
Franck Bui 2023-05-09 14:01:32 +00:00 committed by Git OBS Bridge
parent 5ee9189841
commit 7491f913dd
5 changed files with 338 additions and 2 deletions

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@ -465,6 +465,7 @@
%{_systemd_util_dir}/systemd-timedated
%{_systemd_util_dir}/systemd-timesyncd
%{_systemd_util_dir}/systemd-update-done
%{_systemd_util_dir}/systemd-update-helper
%{_systemd_util_dir}/systemd-update-utmp
%{_systemd_util_dir}/systemd-user-runtime-dir
%{_systemd_util_dir}/systemd-user-sessions

163
systemd-update-helper Normal file
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@ -0,0 +1,163 @@
#!/usr/bin/env bash
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# SPDX-License-Identifier: LGPL-2.1-or-later
#
# This helper is aimed at being used by the systemd rpm macros only.
#
set -eu
set -o pipefail
command="${1:?}"
shift
command -v systemctl >/dev/null || exit 0
case "$command" in
mark-install-system-units)
mkdir -p /run/systemd/rpm/needs-preset
for unit in "$@" ; do
if [ ! -e /usr/lib/systemd/system/"$unit" ]; then
touch /run/systemd/rpm/needs-preset/"$unit"
fi
done
;;
install-system-units)
units=()
for unit in "$@" ; do
if [ -e /run/systemd/rpm/needs-preset/"$unit" ]; then
rm /run/systemd/rpm/needs-preset/"$unit"
units+=("$unit")
fi
done
[ ${#units[*]} -gt 0 ] &&
systemctl --no-reload preset "${units[@]}"
;;
mark-install-user-units)
mkdir -p /run/systemd/rpm/needs-user-preset
for unit in "$@" ; do
if [ ! -e /usr/lib/systemd/user/"$unit" ]; then
touch /run/systemd/rpm/needs-user-preset/"$unit"
fi
done
;;
install-user-units)
units=()
for unit in "$@" ; do
if [ -e /run/systemd/rpm/needs-user-preset/"$unit" ]; then
rm /run/systemd/rpm/needs-user-preset/"$unit"
units+=("$unit")
fi
done
[ ${#units[*]} -gt 0 ] &&
systemctl --no-reload preset --global "$@" || :
;;
remove-system-units)
if [ -d /run/systemd/system ]; then
systemctl --no-reload disable --now --no-warn "$@"
else
systemctl --no-reload disable --no-warn "$@"
fi
;;
remove-user-units)
systemctl --global disable --no-warn "$@"
[ -d /run/systemd/system ] || exit 0
users=$(systemctl list-units 'user@*' --legend=no | sed -n -r 's/.*user@([0-9]+).service.*/\1/p')
for user in $users; do
SYSTEMD_BUS_TIMEOUT=15s \
systemctl --user -M "$user@" disable --now --no-warn "$@" &
done
wait
;;
mark-restart-system-units)
[ -d /run/systemd/system ] || exit 0
for unit in "$@"; do
systemctl set-property "$unit" Markers=+needs-restart &
done
wait
;;
mark-restart-user-units)
[ -d /run/systemd/system ] || exit 0
users=$(systemctl list-units 'user@*' --legend=no | sed -n -r 's/.*user@([0-9]+).service.*/\1/p')
for user in $users; do
for unit in "$@"; do
SYSTEMD_BUS_TIMEOUT=15s \
systemctl --user -M "$user@" set-property "$unit" Markers=+needs-restart &
done
done
wait
;;
system-reload-restart|system-reload|system-restart)
if [ -n "$*" ]; then
echo >&2 "Unexpected arguments for '$command': $*"
exit 2
fi
[ -d /run/systemd/system ] || exit 0
if [[ "$command" =~ reload ]]; then
systemctl daemon-reload
fi
if [[ "$command" =~ restart ]]; then
systemctl reload-or-restart --marked
fi
;;
user-reload-restart|user-reload|user-restart|user-reexec)
if [ -n "$*" ]; then
echo >&2 "Unexpected arguments for '$command': $*"
exit 2
fi
[ -d /run/systemd/system ] || exit 0
users=$(systemctl list-units 'user@*' --legend=no | sed -n -r 's/.*user@([0-9]+).service.*/\1/p')
if [[ "$command" =~ reexec ]]; then
for user in $users; do
SYSTEMD_BUS_TIMEOUT=15s \
systemctl --user -M "$user@" daemon-reexec &
done
wait
fi
if [[ "$command" =~ reload ]]; then
for user in $users; do
SYSTEMD_BUS_TIMEOUT=15s \
systemctl --user -M "$user@" daemon-reload &
done
wait
fi
if [[ "$command" =~ restart ]]; then
for user in $users; do
SYSTEMD_BUS_TIMEOUT=15s \
systemctl --user -M "$user@" reload-or-restart --marked &
done
wait
fi
;;
*)
echo >&2 "Unknown verb '$command'"
exit 3
;;
esac

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@ -1,3 +1,34 @@
-------------------------------------------------------------------
Tue May 9 13:59:56 UTC 2023 - Franck Bui <fbui@suse.com>
- Provide (Lua-based) file triggers and adapt systemd.spec accordingly (boo#1133764)
More specifically, file triggers handle automatically installations or updates
of files for sysusers, tmpfiles, hwdb, journal catalog, udev rules, sysctl and
binfmt.
Therefore it makes a bunch of systemd rpm macros (such as %udev_hwdb_update,
%udev_rules_update, %journal_catalog_update, %tmpfiles_create,
%sysusers_create and so on) not needed anymore. However before considering
simplifying your spec files beware that these changes are not available in SLE
yet and will probably never reach the current releases (latest one being
SLE15-SP5 as of this writing).
Macros dealing with unit restart/enabling (such as %systemd_pre,
%service_add_pre, %service_del_postun, ...) are still needed though. However
reloading of systemd instances (and thus restarting of units) are delayed
until the very end of the package install/update transaction and is now done
only once.
Nevertheless to fully take advantage of file triggers, users have to activate
a specific zypper transaction backend which is still considered as
experimental, see bsc#1041742 for details.
- Provide a (slighlty) customized version of systemd-update-helper. Some of the
systemd rpm macros rely now on the helper and delegate their work to it. Hence
we don't need to rebuild all packages anymore when the content of the rpm
macros must be updated/fixed.
-------------------------------------------------------------------
Tue May 9 12:37:31 UTC 2023 - Franck Bui <fbui@suse.com>

View File

@ -68,7 +68,7 @@
%bcond_without testsuite
%endif
# Kept to ease migrations toward SLE
%bcond_with filetriggers
%bcond_without filetriggers
%bcond_with split_usr
Name: systemd%{?mini}
@ -168,11 +168,13 @@ Obsoletes: systemd-analyze < 201
Source0: systemd-v%{version}%{archive_version}.tar.xz
Source1: systemd-rpmlintrc
Source2: systemd-user
Source3: systemd-update-helper
%if %{with sysvcompat}
Source4: systemd-sysv-install
%endif
Source5: tmpfiles-suse.conf
Source6: baselibs.conf
Source7: triggers.systemd
Source11: after-local.service
Source14: kbd-model-map.legacy
@ -758,6 +760,7 @@ rm %{buildroot}%{_sbindir}/resolvconf
rm %{buildroot}%{_mandir}/man1/resolvconf.1*
%endif
install -m0755 -D %{SOURCE3} %{buildroot}/%{_systemd_util_dir}/systemd-update-helper
%if %{with sysvcompat}
install -m0755 -D %{SOURCE4} %{buildroot}/%{_systemd_util_dir}/systemd-sysv-install
%endif
@ -1062,7 +1065,6 @@ fi
%{_systemd_util_dir}/rpm/fixlet-systemd-post.sh $1 || :
%postun
# daemon-reload is implied by systemd_postun_with_restart
%systemd_postun_with_restart systemd-journald.service
%systemd_postun_with_restart systemd-timesyncd.service
# Avoid restarting logind until fixed upstream (issue #1163)
@ -1083,8 +1085,10 @@ fi
%post -n udev%{?mini}
%regenerate_initrd_post
%if %{without filetriggers}
%udev_hwdb_update
%tmpfiles_create systemd-pstore.conf
%endif
%systemd_post remote-cryptsetup.target
%systemd_post systemd-pstore.service
@ -1134,7 +1138,9 @@ fi
%endif
%post container
%if %{without filetriggers}
%tmpfiles_create systemd-nspawn.conf
%endif
%if %{with machined}
%systemd_post machines.target
%ldconfig
@ -1182,8 +1188,10 @@ fi
%post network
%if %{with networkd}
%if %{without filetriggers}
%sysusers_create systemd-network.conf
%tmpfiles_create systemd-network.conf
%endif
%systemd_post systemd-networkd.service
%systemd_post systemd-networkd-wait-online.service
%endif
@ -1218,7 +1226,9 @@ fi
%systemd_pre systemd-portabled.service
%post portable
%if %{without filetriggers}
%tmpfiles_create portables.conf
%endif
%systemd_post systemd-portabled.service
%preun portable
@ -1251,6 +1261,11 @@ fi
%systemd_postun systemd-userdbd.service systemd-userdbd.socket
%endif
# File trigger definitions
%if %{without filetriggers}
%include %{SOURCE7}
%endif
%files
%defattr(-,root,root)
%include %{SOURCE200}

126
triggers.systemd Normal file
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@ -0,0 +1,126 @@
# -*- Mode: rpm-spec; indent-tabs-mode: nil -*- */
# SPDX-License-Identifier: LGPL-2.1-or-later
#
# This file is part of systemd.
# Copyright © 2018 Neal Gompa
# The contents of this are an example to be copied into systemd.spec.
#
# Minimum rpm version supported: 4.14.0
%transfiletriggerin -P 900900 -p <lua> -- /usr/lib/systemd/system /etc/systemd/system
-- This script will run after any package is initially installed or
-- upgraded. We care about the case where a package is initially
-- installed, because other cases are covered by the *un scriptlets,
-- so sometimes we will reload needlessly.
pid = posix.fork()
if pid == 0 then
assert(posix.exec("/usr/lib/systemd/systemd-update-helper", "system-reload-restart"))
elseif pid > 0 then
posix.wait(pid)
end
%transfiletriggerin -P 900899 -p <lua> -- /usr/lib/systemd/user /etc/systemd/user
pid = posix.fork()
if pid == 0 then
assert(posix.exec("/usr/lib/systemd/systemd-update-helper", "user-reload-restart"))
elseif pid > 0 then
posix.wait(pid)
end
%transfiletriggerpostun -P 1000100 -p <lua> -- /usr/lib/systemd/system /etc/systemd/system
-- On removal, we need to run daemon-reload after any units have been
-- removed.
-- On upgrade, we need to run daemon-reload after any new unit files
-- have been installed, but before %postun scripts in packages get
-- executed.
pid = posix.fork()
if pid == 0 then
assert(posix.exec("/usr/lib/systemd/systemd-update-helper", "system-reload"))
elseif pid > 0 then
posix.wait(pid)
end
%transfiletriggerpostun -P 1000100 -p <lua> -- /usr/lib/systemd/system /etc/systemd/system
-- Execute daemon-reload in user managers.
pid = posix.fork()
if pid == 0 then
assert(posix.exec("/usr/lib/systemd/systemd-update-helper", "user-reload"))
elseif pid > 0 then
posix.wait(pid)
end
%transfiletriggerpostun -P 10000 -p <lua> -- /usr/lib/systemd/system /etc/systemd/system
-- We restart remaining system services that should be restarted here.
pid = posix.fork()
if pid == 0 then
assert(posix.exec("/usr/lib/systemd/systemd-update-helper", "system-restart"))
elseif pid > 0 then
posix.wait(pid)
end
%transfiletriggerpostun -P 9999 -p <lua> -- /usr/lib/systemd/user /etc/systemd/user
-- We restart remaining user services that should be restarted here.
pid = posix.fork()
if pid == 0 then
assert(posix.exec("/usr/lib/systemd/systemd-update-helper", "user-restart"))
elseif pid > 0 then
posix.wait(pid)
end
%transfiletriggerin -P 100700 -p <lua> -- /usr/lib/sysusers.d
-- This script will process files installed in /usr/lib/sysusers.d to create
-- specified users automatically. The priority is set such that it
-- will run before the tmpfiles file trigger.
assert(rpm.execute("systemd-sysusers"))
%if %{without bootstrap}
%transfiletriggerin -P 1000700 -n udev -p <lua> -- /usr/lib/udev/hwdb.d
-- This script will automatically invoke hwdb update if files have been
-- installed or updated in /usr/lib/udev/hwdb.d.
assert(rpm.execute("systemd-hwdb", "update"))
%endif
%transfiletriggerin -P 1000700 -p <lua> -- /usr/lib/systemd/catalog
-- This script will automatically invoke journal catalog update if files
-- have been installed or updated in /usr/lib/systemd/catalog.
assert(rpm.execute("journalctl", "--update-catalog"))
%transfiletriggerin -P 1000700 -p <lua> -- /usr/lib/binfmt.d
-- This script will automatically apply binfmt rules if files have been
-- installed or updated in /usr/lib/binfmt.d.
if posix.access("/run/systemd/system") then
pid = posix.fork()
if pid == 0 then
assert(posix.exec("/usr/lib/systemd/systemd-binfmt"))
elseif pid > 0 then
posix.wait(pid)
end
end
%transfiletriggerin -P 1000600 -p <lua> -- /usr/lib/tmpfiles.d
-- This script will process files installed in /usr/lib/tmpfiles.d to create
-- tmpfiles automatically. The priority is set such that it will run
-- after the sysusers file trigger, but before any other triggers.
assert(rpm.execute("systemd-tmpfiles", "--create"))
%if %{without bootstrap}
%transfiletriggerin -P 1000600 -n udev -p <lua> -- /usr/lib/udev/rules.d
-- This script will automatically update udev with new rules if files
-- have been installed or updated in /usr/lib/udev/rules.d.
if posix.access("/run/udev/control") then
assert(rpm.execute("udevadm", "control", "--reload"))
end
%endif
%transfiletriggerin -P 1000500 -p <lua> -- /usr/lib/sysctl.d
-- This script will automatically apply sysctl rules if files have been
-- installed or updated in /usr/lib/sysctl.d.
if posix.access("/run/systemd/system") then
pid = posix.fork()
if pid == 0 then
assert(posix.exec("/usr/lib/systemd/systemd-sysctl"))
elseif pid > 0 then
posix.wait(pid)
end
end