Create basic OpenRC service

Support is optional, therefore init/conf files will be prepared
for packagers while building but not installed.

Closes medusalix#102

Makefile

@@ -44,6 +44,7 @@ firmware.bin:
 .PHONY: install
 install: xow
 	sed 's|#BINDIR#|$(BINDIR)|' install/service.in > xow.service
+	sed 's|#BINDIR#|$(BINDIR)|' install/openrc/init.in > install/openrc/init
 	install -D -m 755 xow $(DESTDIR)$(BINDIR)/xow
 	install -D -m 644 install/udev.rules $(DESTDIR)$(UDEVDIR)/50-xow.rules
 	install -D -m 644 install/modules.conf $(DESTDIR)$(MODLDIR)/xow-uinput.conf

install/openrc/conf

@@ -0,0 +1,6 @@
+# Uncomment the following line to enable compatibility mode
+#XOW_COMPATIBILITY=1
+
+# Defaults to nobody if not set
+XOW_USER=
+XOW_GROUP=

install/openrc/init.in

@@ -0,0 +1,22 @@
+#!/sbin/openrc-run
+
+description="Xbox One Wireless Dongle Driver"
+command="#BINDIR#/xow"
+
+command_user="${XOW_USER:-nobody}:${XOW_GROUP:-nobody}"
+command_background="true"
+pidfile="/run/${RC_SVCNAME}.pid"
+
+output_log="/var/log/${RC_SVCNAME}.log"
+error_log="${output_log}"
+
+depend() {
+    keyword -lxc -openvz -docker
+}
+
+start_pre() {
+    checkpath -q \
+        -o "${command_user}" \
+        -f "${output_log}"
+}
+