redis: build with USE_SYSTEMD=yes when systemd is enabled

Compile redis with full systemd support when the chosen init system is
systemd.

Enabling systemd supervision allows redis to communicate the actual server
status (i.e. "Loading dataset", "Waiting for master<->replica sync") to
systemd, instead of declaring readiness right after initializing the server
process.

Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-extended/redis/redis-7/redis.service

@@ -9,6 +9,7 @@ ExecStart=/usr/bin/redis-server /etc/redis/redis.conf
 ExecStop=/usr/bin/redis-cli shutdown
 Restart=always
 LimitNOFILE=10032
+Type=notify
 
 [Install]
 WantedBy=multi-user.target

meta-oe/recipes-extended/redis/redis_7.0.4.bb

@@ -35,7 +35,10 @@ USERADD_PACKAGES = "${PN}"
 USERADD_PARAM:${PN}  = "--system --home-dir /var/lib/redis -g redis --shell /bin/false redis"
 GROUPADD_PARAM:${PN} = "--system redis"
 
-REDIS_ON_SYSTEMD = "${@bb.utils.contains('DISTRO_FEATURES', 'systemd', 'true', 'false', d)}"
+PACKAGECONFIG = "${@bb.utils.filter('DISTRO_FEATURES', 'systemd', d)}"
+PACKAGECONFIG[systemd] = "USE_SYSTEMD=yes,USE_SYSTEMD=no,systemd"
+
+EXTRA_OEMAKE += "${PACKAGECONFIG_CONFARGS}"
 
 do_compile:prepend() {
     (cd deps && oe_runmake hiredis lua linenoise)
@@ -55,8 +58,9 @@ do_install() {
     install -m 0644 ${WORKDIR}/redis.service ${D}${systemd_system_unitdir}
     sed -i 's!/usr/sbin/!${sbindir}/!g' ${D}${systemd_system_unitdir}/redis.service
 
-    if [ "${REDIS_ON_SYSTEMD}" = true ]; then
+    if ${@bb.utils.contains('DISTRO_FEATURES', 'systemd', 'true', 'false', d)}; then
         sed -i 's!daemonize yes!# daemonize yes!' ${D}/${sysconfdir}/redis/redis.conf
+        sed -i 's!supervised no!supervised systemd!' ${D}/${sysconfdir}/redis/redis.conf
     fi
 }