xserver-nodm-init: Deprecate /etc/X11/Xserver

This commit should provide the same functionality as before, but
should make meta-oe xserver-nodm-init-2.0 obsolete as well as
keep systemd and sysvinit startup better in sync.

/etc/X11/Xserver is not called anymore: it is provided by both
x11-common and xserver-common with no useful differences (but some
annoying ones). Instead xserver-nodm-init provides
/etc/xserver-nodm/Xserver as the startup script and
/etc/default/xserver-nodm as the default settings file. These are
used by both init systems.

The Xserver script could be completely removed (with sysv and
systemd calling xinit directly), but to keep compatibility with
meta-oes xserver-nodm-init-2.0 the Xserver script sources
/etc/X11/xserver-common if one exists -- and systemd EnvironmentFile
cannot do that.

x11-common used to have a packageconfig to easily control screen
blanking. Move this to xserver-nodm-init.

(From OE-Core rev: e8ce3d2626e505924a75de96650abca166fd230a)

Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-graphics/x11-common/xserver-nodm-init.bb

@@ -5,10 +5,10 @@ SECTION = "x11"
 PR = "r31"
 
 SRC_URI = "file://xserver-nodm \
-           file://Xusername \
+           file://Xserver \
            file://gplv2-license.patch \
-           file://xserver-nodm.service \
+           file://xserver-nodm.service.in \
-           file://xserver-nodm.conf \
+           file://xserver-nodm.conf.in \
 "
 
 S = "${WORKDIR}"
@@ -16,35 +16,44 @@ S = "${WORKDIR}"
 # Since we refer to ROOTLESS_X which is normally enabled per-machine
 PACKAGE_ARCH = "${MACHINE_ARCH}"
 
-inherit update-rc.d systemd
+inherit update-rc.d systemd distro_features_check
+
+REQUIRED_DISTRO_FEATURES = "x11"
+
+PACKAGECONFIG ??= "blank"
+# dpms and screen saver will be on only if 'blank' is in PACKAGECONFIG
+PACKAGECONFIG[blank] = ""
 
 do_install() {
-    install -d ${D}${sysconfdir}/init.d
+    install -d ${D}${sysconfdir}/default
-    install xserver-nodm ${D}${sysconfdir}/init.d
+    install xserver-nodm.conf.in ${D}${sysconfdir}/default/xserver-nodm
+    install -d ${D}${sysconfdir}/xserver-nodm
+    install Xserver ${D}${sysconfdir}/xserver-nodm/Xserver
+
+    BLANK_ARGS="${@bb.utils.contains('PACKAGECONFIG', 'blank', '', '-s 0 -dpms', d)}"
+    if [ "${ROOTLESS_X}" = "1" ] ; then
+        XUSER_HOME="/home/xuser"
+        XUSER="xuser"
+    else
+        XUSER_HOME=${ROOT_HOME}
+        XUSER="root"
+    fi
+    sed -i "s:@HOME@:${XUSER_HOME}:; s:@USER@:${XUSER}:; s:@BLANK_ARGS@:${BLANK_ARGS}:" \
+        ${D}${sysconfdir}/default/xserver-nodm
 
     if ${@bb.utils.contains('DISTRO_FEATURES','systemd','true','false',d)}; then
-        install -d ${D}${sysconfdir}/default
-        install xserver-nodm.conf ${D}${sysconfdir}/default/xserver-nodm
         install -d ${D}${systemd_unitdir}/system
-        install -m 0644 ${WORKDIR}/xserver-nodm.service ${D}${systemd_unitdir}/system
+        install -m 0644 ${WORKDIR}/xserver-nodm.service.in ${D}${systemd_unitdir}/system/xserver-nodm.service
-        if [ "${ROOTLESS_X}" = "1" ] ; then
+        sed -i "s:@USER@:${XUSER}:" ${D}${systemd_unitdir}/system/xserver-nodm.service
-            sed -i 's!^HOME=.*!HOME=/home/xuser!' ${D}${sysconfdir}/default/xserver-nodm
-            sed -i 's!^User=.*!User=xuser!' ${D}${systemd_unitdir}/system/xserver-nodm.service
-        else
-            sed -i 's!^HOME=.*!HOME=${ROOT_HOME}!' ${D}${sysconfdir}/default/xserver-nodm
-            sed -i '/^User=/d' ${D}${systemd_unitdir}/system/xserver-nodm.service
-        fi
     fi
 
     if ${@bb.utils.contains('DISTRO_FEATURES','sysvinit','true','false',d)}; then
-        if [ "${ROOTLESS_X}" = "1" ] ; then
+        install -d ${D}${sysconfdir}/init.d
-            install -d ${D}${sysconfdir}/X11
+        install xserver-nodm ${D}${sysconfdir}/init.d
-            install Xusername ${D}${sysconfdir}/X11
-        fi
     fi
 }
 
-RDEPENDS_${PN} = "${@base_conditional('ROOTLESS_X', '1', 'xuser-account', '', d)}"
+RDEPENDS_${PN} = "xinit ${@base_conditional('ROOTLESS_X', '1', 'xuser-account', '', d)}"
 
 INITSCRIPT_NAME = "xserver-nodm"
 INITSCRIPT_PARAMS = "start 9 5 . stop 20 0 1 2 3 6 ."

meta/recipes-graphics/x11-common/xserver-nodm-init/Xserver

@@ -0,0 +1,25 @@
+#!/bin/sh
+
+# This script is only needed to make sure /etc/X11/xserver-common
+# can affect XSERVER, ARGS & DPI: otherwise systemd could just use
+# /etc/default/xserver-nodm as EnvironmentFile and sysvinit could just
+# source the same file
+
+. /etc/profile
+
+# load default values for XSERVER, ARGS, DISPLAY...
+. /etc/default/xserver-nodm
+
+# Allow xserver-common to override ARGS, XSERVER, DPI
+if [ -e /etc/X11/xserver-common ] ; then
+    . /etc/X11/xserver-common
+    if [ ! -e $XSERVER ] ; then
+        XSERVER=$(which $XSERVER)
+    fi
+fi
+
+if [ -n "$DPI" ] ; then
+    ARGS="$ARGS -dpi $DPI"
+fi
+
+exec xinit /etc/X11/Xsession -- $XSERVER $DISPLAY $ARGS $*

meta/recipes-graphics/x11-common/xserver-nodm-init/Xusername

@@ -1 +0,0 @@
-xuser

meta/recipes-graphics/x11-common/xserver-nodm-init/xserver-nodm

@@ -26,10 +26,11 @@ done
 case "$1" in
   start)
        . /etc/profile
-       username=root
+
+       #default for USER
+       . /etc/default/xserver-nodm
        echo "Starting Xserver"
-       if [ -f /etc/X11/Xusername ]; then
+       if [ "$USER" != "root" ]; then
-           username=`cat /etc/X11/Xusername`
            # setting for rootless X
            chmod o+w /var/log
            chmod g+r /dev/tty[0-3]
@@ -38,8 +39,9 @@ case "$1" in
                chmod o+rw /dev/hidraw*
            fi
        fi
+
        # Using su rather than sudo as latest 1.8.1 cause failure [YOCTO #1211]
-       su -l -c '/etc/X11/Xserver&' $username 
+       su -l -c '/etc/xserver-nodm/Xserver &' $USER
        # Wait for the desktop to say its finished loading
        # before loading the rest of the system
        # dbus-wait org.matchbox_project.desktop Loaded

meta/recipes-graphics/x11-common/xserver-nodm-init/xserver-nodm.conf

@@ -1 +0,0 @@
-HOME=/home/root

meta/recipes-graphics/x11-common/xserver-nodm-init/xserver-nodm.conf.in

@@ -0,0 +1,7 @@
+# common environment file for sysvinit and systemd
+
+XSERVER=/usr/bin/Xorg
+DISPLAY=:0
+ARGS=" -br -pn @BLANK_ARGS@ "
+HOME=@HOME@
+USER=@USER@

meta/recipes-graphics/x11-common/xserver-nodm-init/xserver-nodm.service.in

@@ -2,9 +2,9 @@
 Description=Xserver startup without a display manager
 
 [Service]
-User=root
 EnvironmentFile=/etc/default/xserver-nodm
-ExecStart=/etc/X11/Xserver
+User=@USER@
+ExecStart=/etc/xserver-nodm/Xserver
 
 [Install]
 Alias=display-manager.service