nvim: add nvim-treesitter-textsubjects

modules/programs/nvim/default.nix

@@ -1,12 +1,27 @@
 { config
 , lib
 , pkgs
+, inputs
 , ...
 }:
 
 with lib;
 let
   cfg = config.my.programs.vim;
+
+  mkDate = longDate: (lib.concatStringsSep "-" [
+    (builtins.substring 0 4 longDate)
+    (builtins.substring 4 2 longDate)
+    (builtins.substring 6 2 longDate)
+  ]);
+
+  mkVersionInput = input: mkDate (input.lastModifiedDate or "19700101") + "_" + (input.shortRev or "dirty");
+
+  nvim-treesitter-textsubjects = pkgs.vimUtils.buildVimPluginFrom2Nix {
+    pname = "nvim-treesitter-textsubjects";
+    version = mkVersionInput inputs.nvim-treesitter-textsubjects;
+    src = inputs.nvim-treesitter-textsubjects;
+  };
 in
 {
   options.my.programs.vim = {
@@ -46,6 +61,7 @@ in
         nvim-cmp
         nvim-lspconfig
         nvim-surround
+        nvim-treesitter-textsubjects
         nvim-treesitter.withAllGrammars
         nvim-ts-context-commentstring
         nvim-web-devicons # for dashboard-nvim

modules/programs/nvim/init.lua

@@ -322,3 +322,11 @@ require("nvim-treesitter.configs").setup({
 })
 
 require("nvim-surround").setup({})
+
+require("nvim-treesitter.configs").setup({
+  textsubjects = {
+    enable = true,
+    prev_selection = ",", -- (Optional) keymap to select the previous selection
+    keymaps = { ["."] = "textsubjects-smart" },
+  },
+})