Add new OS build flavour for Weston desktop

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
Change-Id: Iac22b27ed7e7e121fccdddaa47821aef32b55fc7

distro/bionic/weston/fixups/S70-weston

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+sed -i "s/^User=.*/User=@@DEFAULT_USER@@/g" \
+	/etc/systemd/system/weston.service
+
+chmod 644 /etc/systemd/system/weston.service
+systemctl enable weston

distro/bionic/weston/functions

@@ -0,0 +1,3 @@
+allow_root_login() {
+    echo true
+}

distro/bionic/weston/overlay/etc/systemd/system/weston.service

@@ -0,0 +1,35 @@
+[Unit]
+Description=Weston Wayland Compositor (on tty7)
+RequiresMountsFor=/run
+Conflicts=getty@tty7.service plymouth-quit.service
+After=systemd-user-sessions.service getty@tty7.service plymouth-quit-wait.service
+
+[Service]
+User=root
+PermissionsStartOnly=true
+
+# Log us in via PAM so we get our XDG & co. environment and
+# are treated as logged in so we can use the tty:
+PAMName=login
+
+# Grab tty7
+UtmpIdentifier=tty7
+TTYPath=/dev/tty7
+TTYReset=yes
+TTYVHangup=yes
+TTYVTDisallocate=yes
+
+# stderr to journal so our logging doesn't get thrown into /dev/null
+StandardOutput=tty
+StandardInput=tty
+StandardError=journal
+EnvironmentFile=-/etc/default/weston
+
+# Weston does not successfully change VT, nor does systemd place us on
+# the VT it just activated for us. Switch manually:
+ExecStartPre=/bin/chvt 7
+ExecStart=/usr/bin/weston-launch -- --log=/var/log/weston.log --xwayland $OPTARGS
+IgnoreSIGPIPE=no
+
+[Install]
+WantedBy=multi-user.target

distro/bionic/weston/packages

@@ -0,0 +1,2 @@
+weston
+openssh-server

functions

@@ -455,7 +455,7 @@ do_query_latest_tarball() {
     local flavour=${4}
 
     case ${flavour} in
-        *-desktop*)
+        *-desktop* | weston)
             flavour="server"
             ;;
     esac

menu

@@ -91,6 +91,7 @@ do_menu_flavour() {
             "lxde-desktop" "LXDE" \
             "mate-desktop" "MATE" \
             "xfce-desktop" "XFCE" \
+            "weston" "Weston" \
             2>&1 >/dev/tty)
 
     ret=$?