nix-gc: rename frequency to dates

Author: aguirre-matteo

modules/services/nix-gc.nix

@@ -5,7 +5,7 @@
   ...
 }:
 let
-  inherit (lib) mkOption types;
+  inherit (lib) mkRenamedOptionModule mkOption types;
 
   cfg = config.nix.gc;
 
@@ -15,6 +15,10 @@ in
 {
   meta.maintainers = [ lib.maintainers.shivaraj-bh ];
 
+  imports = [
+    (mkRenamedOptionModule [ "nix" "gc" "frequency" ] [ "nix" "gc" "dates" ])
+  ];
+
   options = {
     nix.gc = {
       automatic = mkOption {
@@ -27,7 +31,7 @@ in
         '';
       };
 
-      frequency = mkOption {
+      dates = mkOption {
         type = types.str;
         default = "weekly";
         example = "03:15";
@@ -97,7 +101,7 @@ in
             Description = "Nix Garbage Collector";
           };
           Timer = {
-            OnCalendar = "${cfg.frequency}";
+            OnCalendar = "${cfg.dates}";
             RandomizedDelaySec = cfg.randomizedDelaySec;
             Persistent = cfg.persistent;
             Unit = "nix-gc.service";
@@ -110,7 +114,7 @@ in
 
       (lib.mkIf pkgs.stdenv.isDarwin {
         assertions = [
-          (lib.hm.darwin.assertInterval "nix.gc.frequency" cfg.frequency pkgs)
+          (lib.hm.darwin.assertInterval "nix.gc.dates" cfg.dates pkgs)
         ];
 
         launchd.agents.nix-gc = {
@@ -120,7 +124,7 @@ in
               "${nixPackage}/bin/nix-collect-garbage"
             ]
             ++ lib.optional (cfg.options != null) cfg.options;
-            StartCalendarInterval = lib.hm.darwin.mkCalendarInterval cfg.frequency;
+            StartCalendarInterval = lib.hm.darwin.mkCalendarInterval cfg.dates;
           };
         };
       })

tests/modules/services/nix-gc/darwin/basic.nix

@@ -1,7 +1,7 @@
 {
   nix.gc = {
     automatic = true;
-    frequency = "monthly";
+    dates = "monthly";
     options = "--delete-older-than 30d";
   };
 

tests/modules/services/nix-gc/darwin/darwin-nix-gc-interval-assertion.nix

@@ -1,7 +1,7 @@
 {
   nix.gc = {
     automatic = true;
-    frequency = "00:02:03";
+    dates = "00:02:03";
   };
 
   test.asserts.assertions.expected = [

tests/modules/services/nix-gc/linux/basic.nix

@@ -1,7 +1,7 @@
 {
   nix.gc = {
     automatic = true;
-    frequency = "monthly";
+    dates = "monthly";
     randomizedDelaySec = "42min";
     options = "--delete-older-than 30d --max-freed $((64 * 1024**3))";
   };