run-postinsts: Add systemd service file

This patch mainly adds a systmd service file for run-postinsts,
which is started at first boot to run the post-install scripts.

Apart from this, this patch also modifies the installation location
of run-postinsts to ${sbindir}. This is because this script would be
used by both sysvinit and systemd based images. So it's more reasonable
to make it locate under ${sbindir}.

[YOCTO #5719]

(From OE-Core rev: 5933fbef26ffbc8140248ffb28957f36a813054b)

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/run-postinsts/run-postinsts/run-postinsts.init

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+run-postinsts

meta/recipes-devtools/run-postinsts/run-postinsts/run-postinsts.service

@@ -0,0 +1,17 @@
+[Unit]
+Description=Run pending postinsts
+DefaultDependencies=no
+After=systemd-remount-fs.service systemd-tmpfiles-setup.service tmp.mount
+Before=sysinit.target
+ConditionPathExistsGlob=#SYSCONFDIR#/*-postinsts
+
+[Service]
+Type=oneshot
+ExecStart=#SBINDIR#/run-postinsts
+ExecStartPost=#BASE_BINDIR#/systemctl disable run-postinsts.service
+RemainAfterExit=No
+TimeoutSec=0
+
+[Install]
+WantedBy=basic.target
+WantedBy=sysinit.target

meta/recipes-devtools/run-postinsts/run-postinsts_1.0.bb

@@ -5,12 +5,16 @@ LICENSE = "MIT"
 LIC_FILES_CHKSUM = "file://${COREBASE}/LICENSE;md5=4d92cd373abda3937c2bc47fbc49d690 \
                     file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
 
-SRC_URI = "file://run-postinsts"
+SRC_URI = "file://run-postinsts \
+           file://run-postinsts.init \
+           file://run-postinsts.service"
+
+inherit allarch systemd update-rc.d
 
 INITSCRIPT_NAME = "run-postinsts"
 INITSCRIPT_PARAMS = "start 99 S ."
 
-inherit update-rc.d
+SYSTEMD_SERVICE_${PN} = "run-postinsts.service"
 
 do_configure() {
 	:
@@ -21,8 +25,18 @@ do_compile () {
 }
 
 do_install() {
-	install -d ${D}${sysconfdir}/init.d/
-	install -m 0755 ${WORKDIR}/run-postinsts ${D}${sysconfdir}/init.d/
+	install -d ${D}${sbindir}
+	install -m 0755 ${WORKDIR}/run-postinsts ${D}${sbindir}/
 
-	sed -i -e 's:#SYSCONFDIR#:${sysconfdir}:g' ${D}${sysconfdir}/init.d/run-postinsts
+	install -d ${D}${sysconfdir}/init.d/
+	install -m 0755 ${WORKDIR}/run-postinsts.init ${D}${sysconfdir}/init.d/run-postinsts
+
+	install -d ${D}${systemd_unitdir}/system/
+	install -m 0644 ${WORKDIR}/run-postinsts.service ${D}${systemd_unitdir}/system/
+
+	sed -i -e 's:#SYSCONFDIR#:${sysconfdir}:g' \
+               -e 's:#SBINDIR#:${sbindir}:g' \
+               -e 's:#BASE_BINDIR#:${base_bindir}:g' \
+               ${D}${sbindir}/run-postinsts \
+               ${D}${systemd_unitdir}/system/run-postinsts.service
 }