systemd support

[Jeffery Wilkins]

we need support for systemd because both sudo and su are broken
systemd sets a XDG_RUNTIME_DIR for /run/user/<UID>
when doing su or sudo XDG_RUNTIME_DIR does not get set and /run/user/0 does not get created
please see the github pull request I opened on github
https://github.com/systemd/systemd/pull/2130

[Jeffery Wilkins (djcanadianjeff)]

jefferyw@xubuntu:~$ sudo gnome-terminal
Error constructing proxy for org.gnome.Terminal:/org/gnome/Terminal/Factory0: Error calling StartServiceByName for org.gnome.Terminal: GDBus.Error:org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.gnome.Terminal exited with status 10
jefferyw@xubuntu:~$ env | grep XDG
XDG_VTNR=7
XDG_SESSION_ID=c5
XDG_GREETER_DATA_DIR=/var/lib/lightdm-data/jefferyw
XDG_MENU_PREFIX=xfce-
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session0
XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
XDG_CONFIG_DIRS=/etc/xdg/xdg-xfce:/usr/share/upstart/xdg:/etc/xdg:/etc/xdg
XDG_SESSION_TYPE=x11
XDG_SEAT=seat0
XDG_SESSION_DESKTOP=xfce
XDG_DATA_DIRS=/usr/share/xfce:/usr/share/xfce4:/usr/local/share/:/usr/share/:/usr/share
XDG_RUNTIME_DIR=/run/user/1000
XDG_CURRENT_DESKTOP=XFCE
jefferyw@xubuntu:~$ su -
Password:
root@xubuntu:~# env | grep XDG
root@xubuntu:~# exit
logout
jefferyw@xubuntu:~$ sudo bash
root@xubuntu:~# env | grep XDG
root@xubuntu:~# exit
exit
jefferyw@xubuntu:~$

[dino99 (9d9)]

As Poettering said on github:
There's nothing to fix in gksu. Fix your app to not rely on XDG_RUNTIME_DIR.

[Jeffery Wilkins (djcanadianjeff)]

thanks for digging up a 2 year old problem holy hell

[Jeffery Wilkins (djcanadianjeff)]

I setup this bug because it was causing mate-panel to lock up and crash the whole desktop just because systemd is garbage