s6rc-generator: add dependency on dbus

tools/s6rc-generator

@@ -4,7 +4,11 @@
 # /usr/share/dbus-1/system-services/* (for the system bus)
 # or /usr/share/dbus-1/services/* (for the session bus)
 
-mkdir 'dbus'
+# The name of the dbus service which launches controller/broker
+# all dbus activated services depend on it
+DBUS_S6RC_SERVICE=dbus
+
+mkdir -p 'dbus'
 cd 'dbus'
 
 for service in "$@"; do
@@ -16,6 +20,7 @@ for service in "$@"; do
 	mkdir "$name_/data"
 	echo "$name_" >> "$name_/data/dbus-activatable-name"
 	echo 'longrun' >> "$name_/type"
+	echo "$DBUS_S6RC_SERVICE" >> "$name_/dependencies"
 	echo '#!/bin/execlineb -P' >> "$name_/run"
 	echo "$exec_" >> "$name_/run"
 	chmod +x "$name_/run"