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authorCarl Richard Theodor Schneider <dev.github@crtified.me>2024-04-30 22:47:52 +0200
committerCarl Richard Theodor Schneider <dev.github@crtified.me>2024-05-03 20:15:02 +0200
commit3e86aba9d2dca5cbfa5f9f16e8942d5c0f2781e1 (patch)
tree8e358241cd81418ad9d98b7362e9446315d6893e
parentc4b3e961671c8dcc66a87f0a62d82eeff789fa0d (diff)
nixos/adguardhome: run --check-config before merging
To prevent merging configurations on different `schema_version`,
we will now check the existing configuration, which has the side-effect of
updating the `schema_version`.

Fixes #246461 as described in https://github.com/NixOS/nixpkgs/issues/246461#issuecomment-1667663556
-rw-r--r--nixos/modules/services/networking/adguardhome.nix9
1 files changed, 7 insertions, 2 deletions
diff --git a/nixos/modules/services/networking/adguardhome.nix b/nixos/modules/services/networking/adguardhome.nix
index df9927351edc3..06900166ef2c9 100644
--- a/nixos/modules/services/networking/adguardhome.nix
+++ b/nixos/modules/services/networking/adguardhome.nix
@@ -167,8 +167,13 @@ in {
       preStart = optionalString (settings != null) ''
         if    [ -e "$STATE_DIRECTORY/AdGuardHome.yaml" ] \
            && [ "${toString cfg.mutableSettings}" = "1" ]; then
+          # First run a schema_version update on the existing configuration
+          # This ensures that both the new config and the existing one have the same schema_version
+          # Note: --check-config has the side effect of modifying the file at rest!
+          ${lib.getExe cfg.package} -c "$STATE_DIRECTORY/AdGuardHome.yaml" --check-config
+
           # Writing directly to AdGuardHome.yaml results in empty file
-          ${pkgs.yaml-merge}/bin/yaml-merge "$STATE_DIRECTORY/AdGuardHome.yaml" "${configFile}" > "$STATE_DIRECTORY/AdGuardHome.yaml.tmp"
+          ${lib.getExe pkgs.yaml-merge} "$STATE_DIRECTORY/AdGuardHome.yaml" "${configFile}" > "$STATE_DIRECTORY/AdGuardHome.yaml.tmp"
           mv "$STATE_DIRECTORY/AdGuardHome.yaml.tmp" "$STATE_DIRECTORY/AdGuardHome.yaml"
         else
           cp --force "${configFile}" "$STATE_DIRECTORY/AdGuardHome.yaml"
@@ -178,7 +183,7 @@ in {
 
       serviceConfig = {
         DynamicUser = true;
-        ExecStart = "${cfg.package}/bin/adguardhome ${args}";
+        ExecStart = "${lib.getExe cfg.package} ${args}";
         AmbientCapabilities = [ "CAP_NET_BIND_SERVICE" ]
           ++ optionals cfg.allowDHCP [ "CAP_NET_RAW" ];
         Restart = "always";