Example hydra for nvim tree

[JoseConseco]

Not sure if there is place to share custom hydras. Here is one for nvim-tree plugin. The way it works - as soon as you open or leave nvim-tree panel, the hydra window will be shown/hidden automatically. This way I do not have to remember the keys - in video below I used hydra to rename file:

nvim-tree_hydra.webm
There is no need for special key to close hydra, since as soon as user closes, leaves Nvim-tree the hydra is automatically closed.

local api = require("nvim-tree.api")

local hint = [[
 _w_: cd CWD   _c_: Copy File Path      _/_: Filter
 _y_: Copy     _x_: Cut                 _p_: Paste
 _r_: Rename   _d_: Remove              _n_: New
 _h_: Hidden   _?_: Help
 ^
]]
-- ^ ^           _q_: exit

local nvim_tree_hydra = nil
local nt_au_group = vim.api.nvim_create_augroup("NvimTreeHydraAU", { clear = true })

local function close_nvim_tree_hydra()
  if nvim_tree_hydra then
    nvim_tree_hydra:exit()
  end
end

Hydra.spawn = function(head)
  if head == "nvim_tree_hydra" then
    nvim_tree_hydra = Hydra({
      name = "NvimTree",
      hint = hint,
      config = {
        color = "pink",
        invoke_on_body = true,
        buffer = 0,  -- only for active buffer
        hint = {
          position = "bottom",
          border = "rounded",
        },
      },
      mode = "n",
      body = "H",
      heads = {
        { "w", change_root_to_global_cwd, { silent = true } },
        { "c", api.fs.copy.absolute_path, { silent = true } },
        { "/", api.live_filter.start, { silent = true } },
        { "y", api.fs.copy.node, { silent = true } },
        { "x", api.fs.cut, { exit = true, silent = true } },
        { "p", api.fs.paste, { exit = true, silent = true } },
        { "r", api.fs.rename, { silent = true } },
        { "d", api.fs.remove, { silent = true } },
        { "n", api.fs.create, { silent = true } },
        { "h", api.tree.toggle_hidden_filter, { silent = true } },
        { "?", api.tree.toggle_help, { silent = true } },
        -- { "q", nil, { exit = true, nowait = true } },
      },
    })

    nvim_tree_hydra:activate()

  end
end

vim.api.nvim_create_autocmd({ "BufEnter" }, {
	pattern = "*" ,
	callback = function(opts)
        if vim.bo[opts.buf].filetype == "NvimTree" then
          Hydra.spawn["nvim_tree_hydra"]()
        else
          close_nvim_tree_hydra() -- does not unload the keys - but hiding hydra ok...
        end    
    group = nt_au_group,
})