wrap uevent-watch in a service

modules/service-trigger/rule.nix

@@ -0,0 +1,25 @@
+{
+  liminix
+, uevent-watch
+, serviceFns
+, lib }:
+{
+  service, terms, symlink
+}:
+let
+  inherit (liminix.services) longrun;
+  inherit (lib.attrsets) collect mapAttrsRecursive;
+  inherit (lib.strings) concatStringsSep;
+  stringify = attrs :
+    concatStringsSep " "
+      (collect lib.isString
+        (mapAttrsRecursive
+          (path : value : "${concatStringsSep "." path}=${value}")
+          attrs));
+  termsString = stringify terms;
+in longrun {
+  name = "watch-for-${service.name}";
+  isTrigger = true;
+  buildInputs = [ service ];
+  run = "${uevent-watch}/bin/uevent-watch ${if symlink != null then "-n ${symlink}" else ""} -s ${service.name} ${termsString}";
+}