neovim: port to nixos config instead of home-manager

modules/home-manager/neovim.nix

@@ -1,23 +1,17 @@
 { config, lib, pkgs, ... }:
 
-lib.mkIf config.sane.home-manager.enable
+let
-{
+  inherit (builtins) map;
-  # private because there could be sensitive things in the swap
+  inherit (lib) concatMapStrings optionalString;
-  sane.persist.home.private = [ ".cache/vim-swap" ];
+  # this structure roughly mirrors home-manager's `programs.neovim.plugins` option
-
-  home-manager.users.colin.programs.neovim = {
-    # neovim: https://github.com/neovim/neovim
-    enable = true;
-    viAlias = true;
-    vimAlias = true;
   plugins = with pkgs.vimPlugins; [
     # docs: surround-nvim: https://github.com/ur4ltz/surround.nvim/
     # docs: vim-surround: https://github.com/tpope/vim-surround
-      vim-surround
+    { plugin = vim-surround; }
     # docs: fzf-vim (fuzzy finder): https://github.com/junegunn/fzf.vim
-      fzf-vim
+    { plugin = fzf-vim; }
-      # docs: https://github.com/KeitaNakamura/tex-conceal.vim/
     ({
+      # docs: tex-conceal-vim: https://github.com/KeitaNakamura/tex-conceal.vim/
       plugin = tex-conceal-vim;
       type = "viml";
       config = ''
@@ -34,11 +28,11 @@ lib.mkIf config.sane.home-manager.enable
         " autocmd Syntax tex set conceallevel=2
       '';
     })
+    ({
       # treesitter syntax highlighting: https://nixos.wiki/wiki/Tree_sitters
       # docs: https://github.com/nvim-treesitter/nvim-treesitter
       # config taken from: https://github.com/i077/system/blob/master/modules/home/neovim/default.nix
       # this is required for tree-sitter to even highlight
-      ({
       plugin = nvim-treesitter.withAllGrammars;
       type = "lua";
       config = ''
@@ -72,7 +66,25 @@ lib.mkIf config.sane.home-manager.enable
       '';
     })
   ];
-    extraConfig = ''
+  plugin-packages = map (p: p.plugin) plugins;
+  plugin-config-tex = concatMapStrings (p: optionalString (p.type or "" == "viml") p.config) plugins;
+  plugin-config-lua = concatMapStrings (p: optionalString (p.type or "" == "lua") p.config) plugins;
+in
+lib.mkIf config.sane.home-manager.enable
+{
+  # private because there could be sensitive things in the swap
+  sane.persist.home.private = [ ".cache/vim-swap" ];
+
+  programs.neovim = {
+    # neovim: https://github.com/neovim/neovim
+    enable = true;
+    viAlias = true;
+    vimAlias = true;
+    configure = {
+      packages.myVimPackage = {
+        start = plugin-packages;
+      };
+      customRC = ''
         " let the terminal handle mouse events, that way i get OS-level ctrl+shift+c/etc
         " this used to be default, until <https://github.com/neovim/neovim/pull/19290>
         set mouse=
@@ -104,6 +116,15 @@ lib.mkIf config.sane.home-manager.enable
         " source: https://www.reddit.com/r/neovim/comments/chlmfk/highlight_trailing_whitespaces_in_neovim/
         set list
         set listchars=tab:▷\·,trail:·,extends:◣,precedes:◢,nbsp:○
+
+        """"" PLUGIN CONFIG (tex)
+        ${plugin-config-tex}
+
+        """"" PLUGIN CONFIG (lua)
+        lua <<EOF
+        ${plugin-config-lua}
+        EOF
       '';
     };
+  };
 }