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omarchy/bin/omarchy-update-pacman
T
David Heinemeier HanssonandClaude Fable 5 f5194e3ff5 Shield Omarchy pacman transactions from desktop session teardown
Upgrading systemd runs its post_upgrade scriptlet mid-transaction, which
reexecs both the system manager and every user manager. When pacman runs
inside a user-session scope (the floating update terminal), that reexec
can SIGKILL it and abandon the transaction halfway, with packages
upgraded but none of the post-transaction hooks run.

Route every Omarchy-owned system mutation through a new hidden
omarchy-update-pacman helper that registers the transaction as a PID 1
scope via systemd-run, keeping it out of the user manager's cgroups.
System scopes survive the system manager's own reexec, and as a bonus the
transaction now also survives its terminal window closing. On unbooted
systems (the installer chroot) the helper runs pacman directly.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-09-13 10:21:38 +02:00

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#!/bin/bash
# omarchy:summary=Run a pacman transaction for the Omarchy update flow, shielded from desktop session teardown.
# omarchy:args=<pacman-args>
# omarchy:hidden=true
# omarchy:requires-sudo=true
# Upgrading systemd runs its post_upgrade scriptlet mid-transaction, which
# reexecs both the system manager and every user manager. A pacman running
# inside a user-session scope can be SIGKILLed by that reexec, abandoning the
# transaction halfway. Registering the transaction as a PID 1 scope keeps it
# out of the user manager's cgroups entirely, and system scopes survive the
# system manager's own reexec.
scope=()
if [[ -d /run/systemd/system && ! -L /run/systemd/system ]]; then
scope=(systemd-run --scope --quiet --collect)
fi
# LC_ALL passes through so callers that parse pacman's stderr can pin the locale.
env_args=(OMARCHY_UPDATE_PACMAN=1)
if [[ -n ${LC_ALL:-} ]]; then
env_args+=(LC_ALL="$LC_ALL")
fi
exec sudo env "${env_args[@]}" "${scope[@]}" pacman "$@"