weston-init: add profile to point users to global socket

Add profile script to point users capable of interacting with the global
socket to it by default.

(From OE-Core rev: 2818cbc73093996f8ecb93a4f0df8a31fd4692d3)

Signed-off-by: Randolph Sapp <rs@ti.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-graphics/wayland/weston-init.bb

@@ -9,6 +9,7 @@ SRC_URI = "file://init \
            file://weston.ini \
            file://weston.service \
            file://weston.socket \
+           file://weston-socket.sh \
            file://weston-autologin \
            file://weston-start"
 
@@ -39,6 +40,7 @@ do_install() {
 	if ${@bb.utils.contains('DISTRO_FEATURES','systemd','true','false',d)}; then
 		install -D -p -m0644 ${WORKDIR}/weston.service ${D}${systemd_system_unitdir}/weston.service
 		install -D -p -m0644 ${WORKDIR}/weston.socket ${D}${systemd_system_unitdir}/weston.socket
+		install -D -p -m0644 ${WORKDIR}/weston-socket.sh ${D}${sysconfdir}/profile.d/weston-socket.sh
 		sed -i -e s:/etc:${sysconfdir}:g \
 			-e s:/usr/bin:${bindir}:g \
 			-e s:/var:${localstatedir}:g \
@@ -88,6 +90,7 @@ INITSCRIPT_PARAMS = "start 9 5 2 . stop 20 0 1 6 ."
 
 FILES:${PN} += "\
     ${sysconfdir}/xdg/weston/weston.ini \
+    ${sysconfdir}/profile.d/weston-socket.sh \
     ${systemd_system_unitdir}/weston.service \
     ${systemd_system_unitdir}/weston.socket \
     ${sysconfdir}/default/weston \

meta/recipes-graphics/wayland/weston-init/weston-socket.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+# set weston variables for use with global weston socket
+global_socket="/run/wayland-0"
+if [ -e "$global_socket" ]; then
+	weston_group=$(stat -c "%G" "$global_socket")
+	if [ "$(id -u)" = "0" ]; then
+		export WAYLAND_DISPLAY="$global_socket"
+	else
+		case "$(groups "$USER")" in
+			*"$weston_group"*)
+				export WAYLAND_DISPLAY="$global_socket"
+				;;
+			*)
+				;;
+		esac
+	fi
+	unset weston_group
+fi
+unset global_socket