feat(linkal): Sync with metis on ens.cal.dgnum.eu

machines/web01/linkal/metis-to-linkal.nix

@@ -0,0 +1,24 @@
+{ lib, pkgs }:
+source:
+let
+  #import metis stuff
+  metisCalendarData = builtins.fromJSON (builtins.readFile (source + /data/calendars.json));
+  calendars = metisCalendarData.sources;
+  inherit (import source { inherit pkgs; }) providers;
+
+  # helper function to map 2-level deep attribute-sets
+  mapDeepAttrs = mapFct:
+    lib.concatMapAttrs (name: value:
+      lib.mapAttrs' (name': value':
+        mapFct name name' value'
+      ) value
+    );
+
+
+  toLinkal = upstream: identifier:
+    lib.nameValuePair
+    "https://${providers.${upstream}}/remote.php/dav/public-calendars/${identifier}"
+    ;
+
+in
+  mapDeepAttrs toLinkal calendars