ci: stand up temporary cron job to run systemd timed stuff until 238971 lands

configs/ci.nix

@@ -1,5 +1,6 @@
 { config, lib, pkgs, inputs, xinlib, ... }:
 let
+  inherit (xinlib) prIsOpen;
   jobs = [
     {
       name = "xin-ci-update";
@@ -79,6 +80,14 @@ in with lib; {
 
     systemd.services = lib.listToAttrs (builtins.map xinlib.jobToService jobs);
 
+    services.cron =  prIsOpen.option 238971 {
+      enable = true;
+      systemCronJobs = [
+        "0 0 * * *  systemctl start xin-ci-update"
+        "30 * * * *  systemctl start xin-ci"
+      ];
+    };
+
     services = {
       tsrevprox = {
         enable = true;

lib/default.nix

@@ -7,6 +7,9 @@ let
       prStatus = fromJSON (readFile ../pull_requests/${prstr}.json);
     in prStatus;
   prIsOpen = {
+    option = pr: a:
+      let prStatus = getPrStatus pr;
+      in if prStatus.status == "open" then a else { };
     pkg = pr: localPkg: upstreamPkg:
       let prStatus = getPrStatus pr;
       in if prStatus.status == "open" then

pull_requests/238971.json

@@ -0,0 +1,15 @@
+{
+  "branches": [
+    "staging-23.05",
+    "staging-next-23.05"
+  ],
+  "error": "",
+  "pull_request": 238971,
+  "release": "stable",
+  "status": "open",
+  "status_info": {
+    "staging-23.05": true,
+    "staging-next-23.05": true
+  },
+  "title": "systemd: fix services not stopping"
+}