From fc4e95e2e0966d641e985117674af67d10237a6f Mon Sep 17 00:00:00 2001
From: c4710n <c4710n@users.noreply.github.com>
Date: Sat, 12 Mar 2022 18:08:32 +0800
Subject: [PATCH] nixos/v2ray: change the type of `config` field

Currently, the type of `config` is `types.attrsOf types.unspecified`. It results
that the merging of list doesn't perform as expected.

For example, I declare two part of config in two files:

`a.nix`:
```
config = {
  routing = {
    rules = [
      {
        type = "field";
        outboundTag = "direct";
        domain = [ "geosite:cn" ];
      }
    ];
  };
};
```

`b.nix`:
```
config = {
  routing = {
    rules = [
      {
        type = "field";
        outboundTag = "direct";
        ip = [
          "geoip:cn"
          "geoip:private"
        ];
      }
    ];
  };
};
```

After merging, only the content of `b.nix` left, the content of `a.nix` is
removed.

This commit give the right type of config, which makes the merging of config
acts as expected.
---
 nixos/modules/services/networking/v2ray.nix | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/nixos/modules/services/networking/v2ray.nix b/nixos/modules/services/networking/v2ray.nix
index 95e8761ba5cc..6e7b480f55d5 100644
--- a/nixos/modules/services/networking/v2ray.nix
+++ b/nixos/modules/services/networking/v2ray.nix
@@ -2,7 +2,9 @@
 
 with lib;
 
-{
+let
+  json = pkgs.formats.json { };
+in {
   options = {
 
     services.v2ray = {
@@ -39,7 +41,7 @@ with lib;
       };
 
       config = mkOption {
-        type = types.nullOr (types.attrsOf types.unspecified);
+        type = types.nullOr json.type;
         default = null;
         example = {
           inbounds = [{