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#!/usr/bin/env bash
# SPDX-License-Identifier: LGPL-2.1-or-later
# shellcheck disable=SC2235
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# ex: ts=8 sw=4 sts=4 et filetype=sh
set -eux
set -o pipefail

# Test unit configuration/state/cache/log/runtime data cleanup

export HOME=/root
export XDG_RUNTIME_DIR=/run/user/0

systemctl start user@0.service

( ! test -d "$HOME"/.local/state/foo)
( ! test -d "$HOME"/.config/foo)

systemd-run --user -p StateDirectory=foo --wait /bin/true

test -d "$HOME"/.local/state/foo
( ! test -L "$HOME"/.local/state/foo)
( ! test -d "$HOME"/.config/foo)

systemd-run --user -p StateDirectory=foo -p ConfigurationDirectory=foo --wait /bin/true

test -d "$HOME"/.local/state/foo
( ! test -L "$HOME"/.local/state/foo)
test -d "$HOME"/.config/foo

rmdir "$HOME"/.local/state/foo "$HOME"/.config/foo

systemd-run --user -p StateDirectory=foo -p ConfigurationDirectory=foo --wait /bin/true

test -d "$HOME"/.local/state/foo
( ! test -L "$HOME"/.local/state/foo)
test -d "$HOME"/.config/foo

rmdir "$HOME"/.local/state/foo "$HOME"/.config/foo

# Now trigger an update scenario by creating a config dir first
systemd-run --user -p ConfigurationDirectory=foo --wait /bin/true

( ! test -d "$HOME"/.local/state/foo)
test -d "$HOME"/.config/foo

# This will look like an update and result in a symlink
systemd-run --user -p StateDirectory=foo -p ConfigurationDirectory=foo --wait /bin/true

test -d "$HOME"/.local/state/foo
test -L "$HOME"/.local/state/foo
test -d "$HOME"/.config/foo

test "$(readlink "$HOME"/.local/state/foo)" = ../../.config/foo

# Check that this will work safely a second time
systemd-run --user -p StateDirectory=foo -p ConfigurationDirectory=foo --wait /bin/true

rm "$HOME"/.local/state/foo
rmdir "$HOME"/.config/foo