fold and folding in lunarvim

[mbaneshi]

But How we can use fold and folding utility in lunarvim ?

[oscardoso]

this works for me.

-- folding powered by treesitter
-- https://github.com/nvim-treesitter/nvim-treesitter#folding
-- look for foldenable: https://github.com/neovim/neovim/blob/master/src/nvim/options.lua
-- Vim cheatsheet, look for folds keys: https://devhints.io/vim
vim.opt.foldmethod = "expr" -- default is "normal"
vim.opt.foldexpr = "nvim_treesitter#foldexpr()" -- default is ""
vim.opt.foldenable = false -- if this option is true and fold method option is other than normal, every time a document is opened everything will be folded.

[aap01]

Try these settings to fold the methods inside a class when you enter document

vim.wo.foldmethod = "expr"
vim.wo.foldexpr = "nvim_treesitter#foldexpr()"
vim.wo.fillchars = "fold: "
vim.wo.foldnestmax = 3
vim.wo.foldminlines = 1
vim.wo.foldlevel = 1
vim.wo.foldtext = [[substitute(getline(v:foldstart),'\\t',repeat('\ ',&tabstop),'g').'...'.trim(getline(v:foldend)) . ' (' . (v:foldend - v:foldstart + 1) . ' lines)']]

Final outcome

[tunix]

Hi,

Is there a plugin necessary for folding to work? I tried adding the 3 lines inside the accepted answer but I couldn't get it to work. I have a YAML file and I want to fold part of some block. I get my cursor on the first line of the block I want to fold, press z and I only see "spelling" inside the menu.

[aap01]

@tunix

If you try enabling the z presets in whichkey setup, I think you will be able to see the suggestions for folding and stuff.
Try this in your config.lua file

lvim.builtin.which_key.setup.plugins.presets.z = true

[githorse]

Note this gotcha: folding doesn't always work when you initially open the file -- sometimes you get an error No folds found. (Ultimately caused by Telescope (?)).

Simplest workaround is to run :e on the file, and then folds will work. Other more permanent workarounds are suggested in the issue.