Add XDG user directories and env variables

This patch adds the rest of XDG user directories as per XDG base directory
specification.

https://wiki.archlinux.org/index.php/XDG_Base_Directory

This fixes launching anbox on sxmo. Furthermore, it makes sure $XDG_RUNTIME_HOME
has the correct permissions.

Signed-off-by: Miles Alan <m@milesalan.com>

scripts/core/sxmo_xinit.sh

@@ -8,6 +8,15 @@ envvars() {
 	command -v "$EDITOR" || export EDITOR=vis
 	[ -z "$MOZ_USE_XINPUT2" ] && export MOZ_USE_XINPUT2=1
 	[ -z "$XDG_CONFIG_HOME" ] && export XDG_CONFIG_HOME=~/.config
+	[ -z "$XDG_CACHE_HOME" ] && export XDG_CACHE_HOME=~/.cache
+	[ -z "$XDG_DATA_HOME" ] && export XDG_DATA_HOME=~/.local/share
+	[ -z "$XDG_RUNTIME_HOME" ] && export XDG_RUNTIME_HOME=~/.local/run
+}
+
+setupxdgruntimedir() {
+	mkdir -p $XDG_RUNTIME_HOME
+	chmod 700 $XDG_RUNTIME_HOME
+	chown "$USER:$USER" "$XDG_RUNTIME_HOME"
 }
 
 xdefaults() {
@@ -54,6 +63,7 @@ startdwm() {
 
 xinit() {
 	envvars
+	setupxdgruntimedir
 	xdefaults
 	daemons
 	startdwm