How to redraw after toggle group_empty_dir option?

[weilbith]

Hey 👋🏾

I like to use the option to group_empty_dir. But sometimes I need to access a grouped directory like to add a new folder there or similar. So I added this custom command in my configuration:

require('neo-tree').setup({
  -- ...
  commands = {
    toggle_group_empty_dir = function(state)
      state.group_empty_dir = not state.group_empty_dir
    end
  }
})

This kinda works. In terms that this alternates the rendering/behavior for folders I have not opened yet. But for already grouped empty directories, it does not ungroup them. I tried to add a require('neo-tree.ui.renderer').redraw(state), but that doesn't help.
How can I make to update it? Properly?

---

Visualisation

Actual filesystem:

- one/
   - two/
      - file.ext
- three/
  - four/
    - five/
      - file.ext
  - file.ext

So my initial view, having nothing unfold yet and having empty dirs grouped, it looks like that:

- one/two/
- three/

If I would open folder three still with grouping, it looks like that:

- one/two/
- three/
  - four/five/
  - file.ext

If I reset now to the initial state and before opening folder three call my toggle function, nothing changes first. So the one/two is still grouped. But if I now open folder three, its children are ungrouped. So I just see:

- one/two/
- three/
  - four/
  - file.ext

[cseickel]

What you need there is a refresh instead of a redraw. refresh actually recreates the nodes, but redraw just updates the display of those nodes.

require("neo-tree.sources.manager").refresh(state.name)

[weilbith]

Amazing! Thank you very much 🤗