dconf: create generic module and use it

no more cringe function calling, yay

nix-os/dconf-common.nix

@@ -1,9 +1,12 @@
-# This file is not a NixOS system module
 {config, lib, pkgs, ... }:
-selection:
 
-let
-  settings = with lib.gvariant; {
+{
+  imports = [
+    ./generic/dconf.nix
+  ];
+
+  config = {
+    proot.dconf.rules = with lib.gvariant; {
       "org/gnome/desktop/background" = {
         picture-options = "zoom";
         picture-uri = "file://${../media/wallpaper.png}";
@@ -159,5 +162,5 @@ let
         name = "Terminal";
       } else null;
     };
-in
-lib.filterAttrs (n: v: builtins.elem n selection) settings
+  };
+}

nix-os/desktopManagers/gnome.nix

@@ -1,8 +1,9 @@
-{pkgs, ... } @ moduleArgs:
+{pkgs, ... }:
 
 {
   imports = [
     ../unstable-packages.nix
+    ../dconf-common.nix
   ];
   config = {
     services.xserver.enable = true;
@@ -10,8 +11,7 @@
 
     # environment.sessionVariables.NIXOS_OZONE_WL = "1";
 
-    programs.dconf.profiles.user.databases = [{
-      settings = import ../dconf-common.nix moduleArgs [
+    proot.dconf.profiles.user.rulesToApply = [
       "org/gnome/desktop/background"
       "org/gnome/desktop/interface"
       "org/gnome/desktop/media-handling"
@@ -33,7 +33,6 @@
       "org/gnome/settings-daemon/plugins/media-keys"
       "org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom0"
     ];
-    }];
 
     environment.gnome.excludePackages = with pkgs; with pkgs.gnome; [
       baobab

nix-os/displayManagers/gdm.nix

@@ -1,6 +1,9 @@
-{pkgs, ... } @ moduleArgs:
+{pkgs, ... }:
 
 {
+  imports = [
+    ../dconf-common.nix
+  ];
   config = {
     services.xserver.displayManager.gdm = {
       enable = true;
@@ -8,15 +11,13 @@
       autoSuspend = false;
     };
 
-    programs.dconf.profiles.gdm.databases = [{
-      settings = import ../dconf-common.nix moduleArgs [
+    proot.dconf.profiles.gdm.rulesToApply = [
       "org/gnome/desktop/interface"
       "org/gnome/desktop/peripherals/mouse"
       "org/gnome/desktop/sound"
       "org/gnome/settings-daemon/plugins/power"
       "org/gnome/shell/keybindings"
     ];
-    }];
 
     environment.systemPackages = with pkgs; [
       google-cursor

nix-os/generic/dconf.nix

@@ -0,0 +1,46 @@
+{ config, lib, pkgs, options, ... }:
+
+# proot.dconf.rules
+# proot.dconf.profiles.<profile>.rulesToApply
+# proot.dconf.profiles.<profile>.extraRules
+let
+  cfg = config.proot.dconf;
+  profileOpts = lib.types.submodule {
+    options = {
+      rulesToApply = lib.mkOption {
+        type = lib.types.listOf lib.types.str;
+        default = lib.attrNames cfg.rules;
+        description = lib.mdDoc "A list of rules keys to apply for profile";
+      };
+      extraRules = lib.mkOption {
+        type = lib.types.attrs;
+        default = {};
+        description = lib.mdDoc "An attrset of additional dconf rules to apply ontop of selected";
+      };
+    };
+  };
+
+  mapper = _: value: {
+    databases = lib.singleton {
+      settings = lib.filterAttrs (key: _: lib.elem key value.rulesToApply) cfg.rules // value.extraRules;
+    };
+  };
+in
+{
+  options.proot.dconf = {
+    rules = lib.mkOption {
+      type = lib.types.attrs;
+      default = {};
+      description = lib.mdDoc "An attrset of dconf rules to pull from";
+    };
+    profiles = lib.mkOption {
+      type = lib.types.attrsOf profileOpts;
+      default = {};
+      description = lib.mdDoc "An attret of profiles to create, with pulled rules";
+    };
+  };
+
+  config = {
+    programs.dconf.profiles = lib.mapAttrs mapper cfg.profiles;
+  };
+}