From ac7e6dab4dacce015ea6d99c78164478564cdbbc Mon Sep 17 00:00:00 2001
From: Jean-Baptiste Giraudeau <jb@giraudeau.info>
Date: Thu, 13 Mar 2025 17:16:52 +0100
Subject: [PATCH] Pass dns as arg to zone submodules

allowing less verbose usage like
 `dns.lib.toString "example.com" ./example.com.nix;`
instead of
 `dns.lib.toString "example.com" (import ./example.com.nix
    { inherit dns; });`

with `example.nix` now starting with
```nix
{ dns, ... }:

with dns.combinators;

{
```
---
 dns/default.nix      | 2 +-
 dns/types/record.nix | 1 +
 dns/types/zone.nix   | 2 ++
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/dns/default.nix b/dns/default.nix
index ef14c67..0194c86 100644
--- a/dns/default.nix
+++ b/dns/default.nix
@@ -9,7 +9,7 @@
 let
   dnslib = {
     util = import ./util { inherit lib; };
-    inherit types;
+    inherit types combinators;
   };
   types = import ./types { lib = lib'; };
   lib' = lib // { dns = dnslib; };
diff --git a/dns/types/record.nix b/dns/types/record.nix
index 60af9d4..67f48cf 100644
--- a/dns/types/record.nix
+++ b/dns/types/record.nix
@@ -27,6 +27,7 @@ let
             description = "Record caching duration (in seconds)";
           };
         } // rsubt.options;
+        config._module.args = { inherit (lib) dns; };
       };
     in
       (if rsubt ? fromString then types.either types.str else lib.id) submodule;
diff --git a/dns/types/zone.nix b/dns/types/zone.nix
index e740548..7592ffa 100644
--- a/dns/types/zone.nix
+++ b/dns/types/zone.nix
@@ -42,6 +42,7 @@ let
 
   subzone = types.submodule {
     options = subzoneOptions;
+    config._module.args = { inherit (lib) dns; };
   };
 
   writeSubzone = name: zone:
@@ -84,6 +85,7 @@ let
     } // subzoneOptions;
 
     config = {
+      _module.args = { inherit (lib) dns; };
       __toString = zone@{ useOrigin, TTL, SOA, ... }:
         if useOrigin then
           ''