mirror of
https://github.com/theupriser/steamify-cachyos.git
synced 2026-10-15 21:15:24 +02:00
59 lines
2.7 KiB
Bash
59 lines
2.7 KiB
Bash
#!/bin/bash
|
|
# Log the autologin user in again, into the session steam-set-session picked
|
|
# (Steamify prototype, GDM). Run as root through sudo, from inside the session
|
|
# that is being left. GDM logs in by itself only when the daemon starts, and
|
|
# a new session refuses to start while the old user manager still runs
|
|
# ("A graphical session is already running!"): so the user is ended first,
|
|
# then GDM restarted. That work runs in its own transient unit, because
|
|
# ending the user kills this process too.
|
|
#
|
|
# An optional session id as the argument ("gnome"): that session is logged in
|
|
# for this time only. The session in AccountsService (what the next boot goes
|
|
# to: gaming mode after the SteamOS conversion) is put back once the new
|
|
# session is up.
|
|
if [[ "$1" != --work ]]; then
|
|
[[ -n "${SUDO_USER:-}" ]] || exit 1
|
|
exec systemd-run --no-block --collect --unit=steamify-gdm-relogin "$0" --work "$SUDO_USER" "${1:-}"
|
|
fi
|
|
USER_NAME="$2"
|
|
SESSION="$3"
|
|
ACCOUNT="/var/lib/AccountsService/users/$USER_NAME"
|
|
|
|
# Session= and XSession= of the user, as GDM reads them at the next login.
|
|
get_session() { sed -n "s/^$1=//p" "$ACCOUNT" 2>/dev/null | head -1; }
|
|
set_session() {
|
|
local key
|
|
touch "$ACCOUNT"
|
|
grep -q '^\[User\]' "$ACCOUNT" || echo "[User]" >> "$ACCOUNT"
|
|
for key in Session XSession; do
|
|
if grep -q "^$key=" "$ACCOUNT"; then sed -i "s|^$key=.*|$key=$1|" "$ACCOUNT"
|
|
else sed -i "/^\[User\]/a $key=$1" "$ACCOUNT"; fi
|
|
done
|
|
systemctl restart accounts-daemon 2>/dev/null || true
|
|
}
|
|
if [[ -n "$SESSION" ]]; then
|
|
OLD_SESSION="$(get_session Session)"; OLD_XSESSION="$(get_session XSession)"
|
|
set_session "${SESSION%.desktop}"
|
|
fi
|
|
|
|
# GDM is stopped first, so its login screen doesn't show while the old user
|
|
# manager shuts down; a new login right away fails ("A graphical session is
|
|
# already running!", or the session dies at once), so wait until it is gone.
|
|
systemctl stop gdm.service
|
|
loginctl terminate-user "$USER_NAME"
|
|
# (not `loginctl show-user`: it still lists the user about 10 s after it is gone)
|
|
USER_RUNTIME="/run/user/$(id -u "$USER_NAME")"
|
|
for _ in $(seq 120); do [[ -d "$USER_RUNTIME" ]] || break; sleep 0.25; done
|
|
systemctl start gdm.service
|
|
|
|
if [[ -n "$SESSION" ]]; then
|
|
# The new session has read what it logs in to once its user manager runs; then the next boot's session goes back.
|
|
for _ in $(seq 120); do [[ -d "$USER_RUNTIME" ]] && break; sleep 0.25; done
|
|
sleep 8
|
|
if [[ -n "$OLD_SESSION" ]]; then
|
|
sed -i "s|^Session=.*|Session=$OLD_SESSION|" "$ACCOUNT"
|
|
if [[ -n "$OLD_XSESSION" ]]; then sed -i "s|^XSession=.*|XSession=$OLD_XSESSION|" "$ACCOUNT"; fi
|
|
systemctl restart accounts-daemon 2>/dev/null || true
|
|
fi
|
|
fi
|