sway: start a session with systemd

* bind waybar to sway.session
* edit zprofile and sway config play nice with systemd

.config/sway/config

@@ -58,7 +58,6 @@ exec_always --no-startup-id
 }
 
 exec --no-startup-id {
-	waybar
 	nm-applet --indicator
 	lxpolkit
 	dbus-update-activation-environment DISPLAY XAUTHORITY
@@ -473,8 +472,7 @@ bindsym
 	--locked XF86AudioPrev exec playerctl previous
 }
 
-bar {
-	swaybar_command waybar.sh
-}
 
 include /etc/sway/config.d/*
+# Export environment to systemd and start services.
+exec "systemctl --user import-environment; systemctl --user start sway-session.target"

.config/systemd/user/sway-session.target

@@ -0,0 +1,6 @@
+[Unit]
+Description=sway compositor session
+Documentation=man:systemd.special(7)
+BindsTo=graphical-session.target
+Wants=graphical-session-pre.target
+After=graphical-session-pre.target

.config/systemd/user/sway-session.target.wants/waybar.service

@@ -0,0 +1 @@
+/home/vis/.config/systemd/user/waybar.service

.config/systemd/user/sway.service

@@ -0,0 +1,16 @@
+[Unit]
+Description=sway - SirCmpwn's Wayland window manager
+# as per https://github.com/swaywm/sway/wiki/Systemd-integration#running-sway-itself-as-a---user-service
+Documentation=man:sway(5)
+BindsTo=graphical-session.target
+Wants=graphical-session-pre.target
+After=graphical-session-pre.target
+
+[Service]
+Type=simple
+EnvironmentFile=-%h/.config/sway/env
+ExecStartPre=-source %h/.zprofile
+ExecStart=/usr/bin/sway
+Restart=on-failure
+RestartSec=2
+TimeoutStopSec=10

.config/systemd/user/waybar.service

@@ -0,0 +1,16 @@
+# ~/.config/systemd/user/waybar.service or /etc/systemd/user/waybar.service
+[Unit]
+Description=Highly customizable Wayland bar for Sway and Wlroots based compositors.
+Documentation=https://github.com/Alexays/Waybar/wiki/
+#PartOf=graphical-session.target
+PartOf=sway-session.target
+After=sway-session.target
+
+[Service]
+ExecStart=/usr/bin/waybar
+# Upstreamed in https://github.com/Alexays/Waybar/pull/1036
+ExecReload=kill -SIGUSR2 $MAINPID
+Restart=on-failure
+
+[Install]
+WantedBy=sway-session.target

.zprofile

@@ -58,11 +58,14 @@ if [[ -z $DISPLAY ]]; then
 	export SDL_VIDEODRIVER=wayland
 	export NO_AT_BRIDGE=1
 	export TDESKTOP_USE_PORTAL=1
+	export XDG_SESSION_TYPE=wayland
 
 	if [[ $(tty) == /dev/tty1 ]]; then
 		export XDG_CURRENT_DESKTOP=sway
-		exec sway
-	elif [[ "$(tty)" == "/dev/tty2" ]] && ! ps -e | grep -qw sway
-		MOZ_ENABLE_WAYLAND=1 QT_QPA_PLATFORM=wayland XDG_SESSION_TYPE=wayland exec dbus-run-session gnome-session
+		exec systemd-cat --identifier=sway sway
+	elif [[ $(tty) == /dev/tty2 ]]; then
+		export MOZ_ENABLE_WAYLAND=1
+		export XDG_SESSION_TYPE=wayland
+		exec systemd-cat --identifier=gnome-session gnome
 	fi
 fi