Go to first/last sibling

[fuelen]

I'm trying to migrate from nvim-tree and I'm looking for mapping for K and J keys, which are mapped in nvim-tree to first_sibling and last_sibling actions respectively.

[cseickel]

I looked but couldn't find an explanation. What do those commands do exactly?

Are they like what was discussed in these threads?
#163
#201

[fuelen]

No, these commands weren't discussed there.

Let's say I have a folder with 5 files and my cursor is in the middle. first_sibling moves cursor to the first file and last_sibling moves cursor to the last file.

[cseickel]

Interesting. Here is how you can add those mappings:

  require('neo-tree').setup({
    window = {
      mappings = {
        ["J"] = function(state)
          local tree = state.tree
          local node = tree:get_node()
          local siblings = tree:get_nodes(node:get_parent_id())
          local renderer = require('neo-tree.ui.renderer')
          renderer.focus_node(state, siblings[#siblings]:get_id())
        end,
        ["K"] = function(state)
          local tree = state.tree
          local node = tree:get_node()
          local siblings = tree:get_nodes(node:get_parent_id())
          local renderer = require('neo-tree.ui.renderer')
          renderer.focus_node(state, siblings[1]:get_id())
        end
      }
    }
  })

[fuelen]

Thank you

[glaucocustodio]

Why not having these by default?

[cseickel]

I just generally prefer to make neo-tree easy to customize over having endless configuration options. At this point, I have all of the standard commands covered and would not add anymore unless there's something about that command which would make a custom command impossible or too complex.

In this case, it is a very simple command and would not benefit from being added to the built-in commands. If it were more popular and I got asked about it frequently, the next step would be to add it to the wiki.

[glaucocustodio]

ok, fair enough 🙂

I think would be useful linking this page on the README though as these functions are not that easy to implement in case someone need them.