src/core/triggers.systemd.in

   1 #  -*- Mode: rpm-spec; indent-tabs-mode: nil -*- */
   2 #
   3 #  This file is part of systemd.
   4 #
   5 #  Copyright 2015 Zbigniew Jędrzejewski-Szmek
   6 #
   7 #  systemd is free software; you can redistribute it and/or modify it
   8 #  under the terms of the GNU Lesser General Public License as published by
   9 #  the Free Software Foundation; either version 2.1 of the License, or
  10 #  (at your option) any later version.
  11 #
  12 #  systemd is distributed in the hope that it will be useful, but
  13 #  WITHOUT ANY WARRANTY; without even the implied warranty of
  14 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15 #  Lesser General Public License for more details.
  16 #
  17 #  You should have received a copy of the GNU Lesser General Public License
  18 #  along with systemd; If not, see <http://www.gnu.org/licenses/>.
  19
  20 # The contents of this are an example to be copied into systemd.spec.
  21
  22 %transfiletriggerin -P 900900 -p <lua> -- @systemunitdir@ /etc/systemd/system
  23 -- This script will run after any package is initially installed or
  24 -- upgraded. We care about the case where a package is initially
  25 -- installed, because other cases are covered by the *un scriptlets,
  26 -- so sometimes we will reload needlessly.
  27
  28 pid = posix.fork()
  29 if pid == 0 then
  30     assert(posix.exec("%{_bindir}/systemctl", "daemon-reload"))
  31 elseif pid > 0 then
  32     posix.wait(pid)
  33 end
  34
  35 %transfiletriggerun -p <lua> -- @systemunitdir@ /etc/systemd/system
  36 -- On removal, we need to run daemon-reload after any units have been
  37 -- removed. %transfiletriggerpostun would be ideal, but it does not get
  38 -- executed for some reason.
  39 -- On upgrade, we need to run daemon-reload after any new unit files
  40 -- have been installed, but before %postun scripts in packages get
  41 -- executed. %transfiletriggerun gets the right list of files
  42 -- but it is invoked too early (before changes happen).
  43 -- %filetriggerpostun happens at the right time, but it fires for
  44 -- every package.
  45 -- To execute the reload at the right time, we create a state
  46 -- file in %transfiletriggerun and execute the daemon-reload in
  47 -- the first %filetriggerpostun.
  48
  49 posix.mkdir("%{_localstatedir}/lib")
  50 posix.mkdir("%{_localstatedir}/lib/rpm-state")
  51 posix.mkdir("%{_localstatedir}/lib/rpm-state/systemd")
  52 io.open("%{_localstatedir}/lib/rpm-state/systemd/needs-reload", "w")
  53
  54 %filetriggerpostun -P 1000100 -p <lua> -- @systemunitdir@ /etc/systemd/system
  55 if posix.access("%{_localstatedir}/lib/rpm-state/systemd/needs-reload") then
  56     posix.unlink("%{_localstatedir}/lib/rpm-state/systemd/needs-reload")
  57     posix.rmdir("%{_localstatedir}/lib/rpm-state/systemd")
  58     pid = posix.fork()
  59     if pid == 0 then
  60         assert(posix.exec("%{_bindir}/systemctl", "daemon-reload"))
  61     elseif pid > 0 then
  62         posix.wait(pid)
  63     end
  64 end