feat(neovim): add 'nvim-treesitter' plugin.

Author: pabroux

module/neovim/default.nix

@@ -50,6 +50,10 @@
       source = config.lib.file.mkOutOfStoreSymlink "${unvX.directory.module}/neovim/lua/plugins/specs/lualine.lua";
       target = ".config/nvim/lua/plugins/specs/lualine.lua";
     };
+    "neovim/lua/plugins/specs/nvim-treesitter.lua" = {
+      source = config.lib.file.mkOutOfStoreSymlink "${unvX.directory.module}/neovim/lua/plugins/specs/nvim-treesitter.lua";
+      target = ".config/nvim/lua/plugins/specs/nvim-treesitter.lua";
+    };
     "neovim/lua/plugins/specs/nvim-tree.lua" = {
       source = config.lib.file.mkOutOfStoreSymlink "${unvX.directory.module}/neovim/lua/plugins/specs/nvim-tree.lua";
       target = ".config/nvim/lua/plugins/specs/nvim-tree.lua";

module/neovim/lua/plugins/specs/nvim-treesitter.lua

@@ -0,0 +1,84 @@
+return {
+	"nvim-treesitter/nvim-treesitter",
+	event = { "BufReadPre", "BufNewFile" },
+	build = ":TSUpdate",
+	dependencies = {
+		"windwp/nvim-ts-autotag",
+	},
+	config = function()
+		local treesitter = require("nvim-treesitter.configs")
+
+		-------------------------------------------------------------------------------
+		-- Key bindings
+		-------------------------------------------------------------------------------
+
+		local keymaps = {
+			init_selection = "<C-space>",
+			node_incremental = "<C-space>",
+			scope_incremental = false,
+			node_decremental = "<bs>",
+		}
+
+		-------------------------------------------------------------------------------
+		-- Options
+		-------------------------------------------------------------------------------
+
+		treesitter.setup({
+			highlight = {
+				enable = true,
+			},
+			-- enable indentation
+			indent = { enable = true },
+			-- enable autotagging with nvim-ts-autotag plugin
+			autotag = {
+				enable = true,
+			},
+			-- ensure these language parsers are installed
+			ensure_installed = {
+				"angular",
+				"bash",
+				"c",
+				"cmake",
+				"comment",
+				"css",
+				"dart",
+				"diff",
+				"dockerfile",
+				"git_config",
+				"git_rebase",
+				"gitattributes",
+				"gitcommit",
+				"gitignore",
+				"go",
+				"graphql",
+				"html",
+				"javascript",
+				"json",
+				"lua",
+				"make",
+				"markdown",
+				"nix",
+				"php",
+				"query",
+				"ruby",
+				"scss",
+				"sql",
+				"svelte",
+				"terraform",
+				"tmux",
+				"toml",
+				"tsx",
+				"typescript",
+				"vim",
+				"vimdoc",
+				"vue",
+				"xml",
+				"yaml",
+			},
+			incremental_selection = {
+				enable = true,
+				keymaps = keymaps,
+			},
+		})
+	end,
+}