Nvim: add treesitter folding

home/.config/nvim/lua/pluginconf/treesitter.lua

@@ -4,3 +4,10 @@ require'nvim-treesitter.configs'.setup {
     incremental_selection = {enable = true},
     context_commentstring = {enable = true}
 }
+
+vim.wo.foldmethod = 'expr';
+vim.wo.foldexpr = 'nvim_treesitter#foldexpr()'
+vim.wo.foldtext = [[substitute(getline(v:foldstart), '\\t' repeat('\ ',&tabstop),'g').'...'.trim(v:foldend)]]
+vim.wo.fillchars = 'fold:\\'
+vim.wo.foldnestmax = 3
+vim.wo.foldminlines = 1