plugins/theme: initial theming refactor

docs/manual/release-notes/rl-26.12.md

@@ -7,6 +7,13 @@
 - Dropping all old deprecations from 26.07 backwards. This is done to keep the
   codebase maintainable.
 
+- `theme`: replace the single-theme configuration with `vim.theme.themes` and
+  `vim.theme.default`. The legacy `name`, `style`, and `transparent` options
+  remain available temporarily with a migration warning.
+
+  Catppuccin integrations are now opt-in through
+  `vim.theme.catppuccin.integrations.<plugin>.enable`.
+
 [snoweuph](https://github.com/snoweuph)
 
 - splitting `languages/json5` from `languages/json`, because most `json` and

modules/plugins/lsp/lspsaga/lspsaga.nix

@@ -6,16 +6,6 @@
   inherit (lib.modules) mkRemovedOptionModule;
   inherit (lib.options) mkOption mkEnableOption;
   inherit (lib.nvim.types) borderType mkPluginSetupOption;
-  inherit (lib.nvim.lua) mkLuaInline;
-
-  uiKindSetupOpts =
-    if config.vim.theme.enable && config.vim.theme.name == "catppuccin"
-    then {
-      ui.kind = mkLuaInline ''
-        require("catppuccin.groups.integrations.lsp_saga").custom_kind()
-      '';
-    }
-    else {};
 in {
   imports = [
     (mkRemovedOptionModule ["vim" "lsp" "lspsaga" "mappings"] ''
@@ -31,14 +21,12 @@ in {
   options.vim.lsp.lspsaga = {
     enable = mkEnableOption "LSP Saga";
 
-    setupOpts =
-      mkPluginSetupOption "lspsaga" {
-        border_style = mkOption {
-          type = borderType;
-          default = config.vim.ui.borders.globalStyle;
-          description = "Border type, see {command}`:help nvim_open_win`";
-        };
-      }
-      // uiKindSetupOpts;
+    setupOpts = mkPluginSetupOption "lspsaga" {
+      border_style = mkOption {
+        type = borderType;
+        default = config.vim.ui.borders.globalStyle;
+        description = "Border type, see {command}`:help nvim_open_win`";
+      };
+    };
   };
 }

modules/plugins/statusline/lualine/lualine.nix

@@ -3,10 +3,8 @@
   lib,
   ...
 }: let
-  inherit (builtins) elem;
   inherit (lib.options) mkOption mkEnableOption;
   inherit (lib.types) int bool str listOf enum;
-  inherit (lib.lists) optional;
   inherit (lib.nvim.types) mkPluginSetupOption;
 
   supported_themes = import ./supported_themes.nix;
@@ -124,16 +122,11 @@ in {
       '';
     };
 
-    theme = let
-      themeSupported = elem config.vim.theme.name supported_themes;
-      themesConcatted = builtin_themes ++ optional themeSupported config.vim.theme.name;
-    in
-      mkOption {
-        type = enum themesConcatted;
-        default = "auto";
-        defaultText = ''`config.vim.theme.name` if theme supports lualine else "auto"'';
-        description = "Theme for lualine";
-      };
+    theme = mkOption {
+      type = enum (builtin_themes ++ supported_themes);
+      default = "auto";
+      description = "Theme for lualine";
+    };
 
     sectionSeparator = {
       left = mkOption {

modules/plugins/tabline/nvim-bufferline/nvim-bufferline.nix

@@ -3,7 +3,7 @@
   lib,
   ...
 }: let
-  inherit (lib.options) mkOption mkEnableOption literalExpression literalMD;
+  inherit (lib.options) mkOption mkEnableOption literalExpression;
   inherit (lib.types) enum bool either nullOr str int listOf attrs;
   inherit (lib.generators) mkLuaInline;
   inherit (lib.nvim.types) mkPluginSetupOption luaInline;
@@ -27,25 +27,7 @@ in {
     setupOpts = mkPluginSetupOption "bufferline-nvim" {
       highlights = mkOption {
         type = either attrs luaInline;
-        default =
-          if config.vim.theme.enable && config.vim.theme.name == "catppuccin"
-          then
-            mkLuaInline ''
-              (function()
-                local integration = require("catppuccin.special.bufferline")
-                return (integration.get_theme or integration.get)()
-              end)()
-            ''
-          else {};
-        defaultText = literalMD ''
-          ```lua
-          (function()
-            local integration = require("catppuccin.special.bufferline")
-            return (integration.get_theme or integration.get)()
-          end)()
-          ```
-          if the active theme is Catppuccin, `{}` otherwise.
-        '';
+        default = {};
         description = ''
           Overrides the highlight groups of bufferline.