48 lines
2.3 KiB
Text
48 lines
2.3 KiB
Text
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#!/bin/sh
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# SPDX-License-Identifier: GPL-3.0-only
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# SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
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#
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# Restart imsd onto the upgraded binary once apk is done: the systemd
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# trigger restarts every unit marked needs-restart (enqueue-marked). A
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# changed bus policy is live the moment apk writes it (dbus-broker-launch
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# reloads on its own), so it must not be left facing the old daemon. The
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# restart resumes the registration over its existing SAs, or goes on
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# waiting when the network had imsd wait; a call in progress ends.
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#
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# Also installed as imsd.post-install: `apk del imsd` removes the files
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# and leaves the daemon running, so a later `apk add` of the package is
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# this upgrade for that daemon, and apk runs post-install for it. A first
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# install finds no unit active and marks nothing. On the binary route
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# (APKBUILD.binary) the unit file ships in imsd-systemd, installed after
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# this package; its imsd-systemd.post-upgrade marks the unit then.
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#
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# A daemon older than 0.3.10 kept its bring-up throttle wait in memory
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# only, so a restart inside it registered fresh at once instead of
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# waiting the schedule out. Before marking, record the running
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# invocation in /run/imsd.handover: the next start (imsd-handover.sh, an
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# ExecStartPre after ims-pdn-up.sh) reads that invocation's last bring-up
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# line once the daemon has stopped and hands what is left of its wait over
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# as imsd's holds file (on another address only the verdict that its
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# registration is gone). Read then, not here: a wait that ends between this
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# script and the restart at the end of the transaction — the old daemon
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# making another attempt — is read as it ended.
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# A unit whose file an apk del removed is not-found to systemd until a
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# reload and refuses properties ("failed to load properly"); its file is
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# back on disk by the time post-install runs, so reload and mark again.
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mark() {
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systemctl set-property "$1" Markers=+needs-restart 2>/dev/null && return 0
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systemctl daemon-reload && systemctl set-property "$1" Markers=+needs-restart || :
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}
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record_old_invocation() {
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[ -e /run/imsd.holds ] && return 0 # a 0.3.10 or later daemon keeps its own holds
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inv=$(systemctl show -P InvocationID imsd.service 2>/dev/null)
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[ -n "$inv" ] && echo "$inv" > /run/imsd.handover
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}
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if [ -d /run/systemd/system ] && systemctl is-active -q imsd.service; then
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record_old_invocation
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mark imsd.service
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fi
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exit 0
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