Files
niri/resources/niri-session
T
Vladimir-csp 88339633b1 Detect external session management
This should make `uwsm start niri.desktop` possible like with other compositors.
2025-07-14 13:20:30 +03:00

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#!/bin/sh
# Detect if being run as a user service, which implies external session management,
# exec compositor directly
if [ -n "${MANAGERPID:-}" ] && [ "${SYSTEMD_EXEC_PID:-}" = "$$" ]; then
case "$(ps -p "$MANAGERPID" -o cmd=)" in
*systemd*--user*)
exec niri --session
;;
esac
fi
if [ -n "$SHELL" ] &&
grep -q "$SHELL" /etc/shells &&
! (echo "$SHELL" | grep -q "false") &&
! (echo "$SHELL" | grep -q "nologin"); then
if [ "$1" != '-l' ]; then
exec bash -c "exec -l '$SHELL' -c '$0 -l $*'"
else
shift
fi
fi
# Try to detect the service manager that is being used
if hash systemctl >/dev/null 2>&1; then
# Make sure there's no already running session.
if systemctl --user -q is-active niri.service; then
echo 'A niri session is already running.'
exit 1
fi
# Reset failed state of all user units.
systemctl --user reset-failed
# Import the login manager environment.
systemctl --user import-environment
# DBus activation environment is independent from systemd. While most of
# dbus-activated services are already using `SystemdService` directive, some
# still don't and thus we should set the dbus environment with a separate
# command.
if hash dbus-update-activation-environment 2>/dev/null; then
dbus-update-activation-environment --all
fi
# Start niri and wait for it to terminate.
systemctl --user --wait start niri.service
# Force stop of graphical-session.target.
systemctl --user start --job-mode=replace-irreversibly niri-shutdown.target
# Unset environment that we've set.
systemctl --user unset-environment WAYLAND_DISPLAY XDG_SESSION_TYPE XDG_CURRENT_DESKTOP NIRI_SOCKET
elif hash dinitctl >/dev/null 2>&1; then
# Check that the user dinit daemon is running
if ! pgrep -u "$(id -u)" dinit >/dev/null 2>&1; then
echo "dinit user daemon is not running."
exit 1
fi
# Make sure there's no already running session.
if dinitctl --user is-started niri >/dev/null 2>&1; then
echo 'A niri session is already running.'
exit 1
fi
# Start niri
dinitctl --user start niri
else
echo "No systemd or dinit detected, please use niri --session instead."
fi