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#  -*- Mode: rpm-spec; indent-tabs-mode: nil -*- */
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#
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#  This file is part of systemd.
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#
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#  Copyright 2015 Zbigniew Jędrzejewski-Szmek
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#
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#  systemd is free software; you can redistribute it and/or modify it
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#  under the terms of the GNU Lesser General Public License as published by
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#  the Free Software Foundation; either version 2.1 of the License, or
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#  (at your option) any later version.
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#
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#  systemd is distributed in the hope that it will be useful, but
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#  WITHOUT ANY WARRANTY; without even the implied warranty of
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#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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#  Lesser General Public License for more details.
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#
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#  You should have received a copy of the GNU Lesser General Public License
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#  along with systemd; If not, see <http: www.gnu.org="" licenses=""/>.
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# The contents of this are an example to be copied into systemd.spec.
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%transfiletriggerin -P 900900 -p <lua> -- /usr/lib/systemd/system /etc/systemd/system
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-- This script will run after any package is initially installed or
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-- upgraded. We care about the case where a package is initially
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-- installed, because other cases are covered by the *un scriptlets,
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-- so sometimes we will reload needlessly.
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pid = posix.fork()
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if pid == 0 then
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    assert(posix.exec("%{_bindir}/systemctl", "daemon-reload"))
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elseif pid > 0 then
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    posix.wait(pid)
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end
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%transfiletriggerun -p <lua> -- /usr/lib/systemd/system /etc/systemd/system
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-- On removal, we need to run daemon-reload after any units have been
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-- removed. %transfiletriggerpostun would be ideal, but it does not get
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-- executed for some reason.
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-- On upgrade, we need to run daemon-reload after any new unit files
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-- have been installed, but before %postun scripts in packages get
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-- executed. %transfiletriggerun gets the right list of files
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-- but it is invoked too early (before changes happen).
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-- %filetriggerpostun happens at the right time, but it fires for
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-- every package.
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-- To execute the reload at the right time, we create a state
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-- file in %transfiletriggerun and execute the daemon-reload in
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-- the first %filetriggerpostun.
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posix.mkdir("%{_localstatedir}/lib")
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posix.mkdir("%{_localstatedir}/lib/rpm-state")
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posix.mkdir("%{_localstatedir}/lib/rpm-state/systemd")
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io.open("%{_localstatedir}/lib/rpm-state/systemd/needs-reload", "w")
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%filetriggerpostun -P 1000100 -p <lua> -- /usr/lib/systemd/system /etc/systemd/system
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if posix.access("%{_localstatedir}/lib/rpm-state/systemd/needs-reload") then
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    posix.unlink("%{_localstatedir}/lib/rpm-state/systemd/needs-reload")
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    posix.rmdir("%{_localstatedir}/lib/rpm-state/systemd")
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    pid = posix.fork()
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    if pid == 0 then
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        assert(posix.exec("%{_bindir}/systemctl", "daemon-reload"))
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    elseif pid > 0 then
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        posix.wait(pid)
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    end
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end