From 20f603d584dd272a718afa08a24ef8dc1b58a489 Mon Sep 17 00:00:00 2001
From: ache <ache@ache.one>
Date: Thu, 19 Feb 2026 18:46:00 +0100
Subject: exp: Experiment with treesitter fold

---
 lua/ache/plugins/treesitter.lua | 40 +++++++++++++++++++++++++++++++---------
 1 file changed, 31 insertions(+), 9 deletions(-)

diff --git a/lua/ache/plugins/treesitter.lua b/lua/ache/plugins/treesitter.lua
index 139ed50..ff2d176 100644
--- a/lua/ache/plugins/treesitter.lua
+++ b/lua/ache/plugins/treesitter.lua
@@ -10,8 +10,7 @@
 return {
 	"nvim-treesitter/nvim-treesitter",
 	enabled = true,
-	lazy = false,
-	-- event = { "BufReadPre", "BufNewFile" },
+	event = { "BufReadPre", "BufNewFile" },
 	build = ":TSUpdate",
 	-- dependencies = {
 	-- 	"windwp/nvim-ts-autotag",
@@ -26,9 +25,11 @@ return {
 			highlight = {
 				enable = true,
 				additional_vim_regex_highlighting = false,
+				-- disable = {"rust", "python", "lua", "markdown"},
 			},
 			indent = {
 				enable = true,
+				disable = {},
 			},
 			-- TODO: Install nvim-ts-autotag
 			-- autotag = { -- With nvim-ts-autotag plugin
@@ -111,17 +112,38 @@ return {
 		--   -- filetype = "zu", -- if filetype does not match the parser name
 		-- }
 
+		-- *************  Alternative METHOD
+		-- *************************
 		-- vim.wo.foldmethod = "expr"
 		-- vim.wo.foldexpr = "v:lua.vim.treesitter.foldexpr()"
 		-- vim.wo.foldlevel = 9
 
-		vim.wo[0][0].foldexpr = "v:lua.vim.treesitter.foldexpr()"
-		vim.wo[0][0].foldmethod = "expr"
-		vim.wo[0][0].foldlevel = 9
-		vim.bo.indentexpr = "v:lua.require'nvim-treesitter'.indentexpr()"
+		-- vim.wo[0][0].foldexpr = "v:lua.vim.treesitter.foldexpr()"
+		-- vim.wo[0][0].foldmethod = "expr"
+		-- vim.wo[0][0].foldlevel = 9
+		-- vim.bo.indentexpr = "v:lua.require'nvim-treesitter'.indentexpr()"
 
-		vim.keymap.set("n", "<leader>z", function()
-			vim.cmd([[set foldexpr=nvim_treesitter#foldexpr()]])
-		end, { desc = "Refresh folding from Treesitter" })
+		-- vim.keymap.set("n", "<leader>z", function()
+		-- 	vim.cmd([[set foldexpr=nvim_treesitter#foldexpr()]])
+		-- end, { desc = "Refresh folding from Treesitter" })
+
+		-- Use treesitter for auto-fold
+
+		-- Create an autocommand for "BufRead" events
+		vim.api.nvim_create_autocmd("FileType", {
+			-- This autocommand will only trigger if the buffer name matches the following patterns
+			-- pattern = { "*.yaml", "*.yml" },
+			-- The autocommand will trigger the following lua function
+			callback = function()
+				local parsers = require("nvim-treesitter.parsers")
+				if parsers.has_parser() then
+					vim.wo.foldmethod = "expr"
+					vim.wo.foldexpr = "v:lua.vim.treesitter.foldexpr()"
+					vim.wo.foldlevel = 9
+				else
+					vim.wo.foldmethod = "syntax"
+				end
+			end,
+		})
 	end,
 }
-- 
cgit v1.3-2-g11bf