Shorten root path.

[madelaney]

It is possible to change the root path to a shortened format? For example if my full path is ~/work/gitlab.mldelaney.io/project_a/example-repo, rather then displaying the full path could we display ~/w/g/p/example-repo?

[gegoune]

Look at :h nvim-tree.renderer.root_folder_label.

[madelaney]

Thanks @gegoune , I was able to write ( poorly ) a function that did what I was looking for.

Here is the solution I came up with (I'm going to assume there are optimizations that can be done):

function shorten_root_path(value)
  local home = os.getenv("HOME")
  local path = ""
  local sep  = "/"

  local t = {}
  for str in string.gmatch(value, "([^" .. sep .. "]+)") do
    table.insert(t, str)
  end

  local size = 0
  for _ in pairs(t) do size = size + 1 end

  local index = 0

  if value:find(home, 1, true) == 1 then
    local _, count = string.gsub(home, "/", "")
    index = count + 1
    path = "~"
  end

  for k, v in pairs(t) do
    if k >= index then
      if (path:len() == 0) then
        path = string.sub(v, 1, 1)
      elseif (v:len() == 1) then
        path = path .. sep .. v
      elseif (k == size) then
        path = path .. sep .. v
      else
        path = path .. sep .. string.sub(v, 1, 1)
      end
    end
  end

  return path
end

[alex-courtis]

It looks like there might be something built into vim to do this. Take a look at the tab titles in a clean setup:

Not sure how they are set...

[litoj]

@madelaney I think this is something you're looking for:

root_folder_label = function(path)
  path = path:gsub(os.getenv("HOME"), "~", 1)
  return path:gsub("([a-zA-Z])[a-z]+", "%1") .. path:gsub(".*[^a-zA-Z].?", "")
end,

turns ~/Documents/work/projects-fit/packages/profit-theses-backend
into ~/D/w/p-f/p/p-t-backend

I honestly think this should become the standard.

[alex-courtis]

I honestly think this should become the standard.

If we were building nvim-tree today, we might do that. Unfortunately we don't like to break existing behaviour.