From 036db1dd17978719d31179550622339afde76c60 Mon Sep 17 00:00:00 2001
From: Thomas Vanbesien <tvanbesi@proton.me>
Date: Sat, 13 Jun 2026 00:27:05 +0200
Subject: fix(nvim): rewrite fold plugin and fix text folding while editing

---
 .config/nvim/init.lua              |  1 -
 .config/nvim/plugin/50-fold.lua    | 23 +++++++++++------------
 .config/nvim/plugin/50-session.lua |  2 ++
 3 files changed, 13 insertions(+), 13 deletions(-)

(limited to '.config/nvim')

diff --git a/.config/nvim/init.lua b/.config/nvim/init.lua
index 8073993..0f9d07f 100644
--- a/.config/nvim/init.lua
+++ b/.config/nvim/init.lua
@@ -229,7 +229,6 @@ end)
 ------------------------------------------------------------------------------------------------------------------------
 
 vim.opt.shell = "/usr/bin/bash"
-vim.opt.foldenable = true -- Folds are closed by default
 vim.opt.pumheight = 16 -- Popup menu height to 16 lines
 vim.opt.confirm = true -- Confirm before losing buffer unsaved changes
 vim.opt.splitbelow = false
diff --git a/.config/nvim/plugin/50-fold.lua b/.config/nvim/plugin/50-fold.lua
index 27cb5e5..f887614 100644
--- a/.config/nvim/plugin/50-fold.lua
+++ b/.config/nvim/plugin/50-fold.lua
@@ -1,27 +1,26 @@
 --
--- fold plugin
+-- 50-fold.lua
 --
-
--- Initialize folds with foldmethod = expr if a treesitter parser is available, then switch back to manual
--- This is to have the folds calculated and closed when editing the file initially, but with foldmethod set to manual
--- Without foldmethod set to manual folds are created while writing in insert mode which is annoying
+-- * Creates an autocommand to fold with treesitter automatically and close all folds on 'FileType'.
+-- * Sets 'foldlevel' to 99 so that new text will not fold while editing.
 --
--- Skip floating windows, because they often are documentation (and thus should be visible by default)
-local function init_folds()
+
+local function fold_with_treesitter()
 	if vim.api.nvim_win_get_config(0).relative ~= "" or vim.treesitter.get_parser(0) == nil then
 		return
 	end
 	vim.opt_local.foldexpr = "v:lua.vim.treesitter.foldexpr()"
 	vim.opt_local.foldmethod = "expr"
-	vim.cmd.normal({ "zX", bang = true })
-	vim.opt_local.foldmethod = "manual"
+	vim.cmd("silent! %foldclose!")
 end
 
--- Initial fold setup
+----------------------------------------------------------------------------------------------------
+
 vim.api.nvim_create_autocmd("FileType", {
 	desc = "Initialize folds",
 	group = vim.g.dotfiles.augroup,
-	callback = init_folds,
+	callback = fold_with_treesitter,
 })
 
-vim.api.nvim_create_user_command("FoldInit", init_folds, { desc = "(Re)initialize folds" })
+vim.opt.foldenable = true
+vim.opt.foldlevel = 99
diff --git a/.config/nvim/plugin/50-session.lua b/.config/nvim/plugin/50-session.lua
index a297504..7b0061b 100644
--- a/.config/nvim/plugin/50-session.lua
+++ b/.config/nvim/plugin/50-session.lua
@@ -2,6 +2,8 @@
 -- Session plugin
 --
 
+vim.opt.sessionoptions:remove("folds")
+
 local session_dir = vim.fn.stdpath("state") .. "/sessions"
 local session_default = session_dir .. "/default.vim"
 if not vim.uv.fs_stat(session_dir) then
-- 
cgit v1.3.1