Nvim tree doesn't auto refresh for sshfs mounted filesystem

[Blake227]

Description

I recently use neovim and sshfs to work on the remote workstation. Nvim Tree would auto refresh if I add or remove file in the fuse filesystem via terminal on the local machine, but it doesn't refresh if I add or remove files at the terminal of workstation. The fuse filesystem on the local machine would show the file added at the instant I create the file at the terminal of workstation, but nvim-tree wouldn't. Running :NvimTreeRefresh can correctly refresh the file tree. Is there any way to fix that?

Neovim version

NVIM v0.8.1
Build type: Release
LuaJIT 2.1.0-beta3

Operating system and version

Linux 6.0.10-arch2-1

nvim-tree version

1837751

Minimal config

vim.cmd [[set runtimepath=$VIMRUNTIME]]
vim.cmd [[set packpath=/tmp/nvt-min/site]]
local package_root = "/tmp/nvt-min/site/pack"
local install_path = package_root .. "/packer/start/packer.nvim"
local function load_plugins()
  require("packer").startup {
    {
      "wbthomason/packer.nvim",
      "nvim-tree/nvim-tree.lua",
      "nvim-tree/nvim-web-devicons",
      -- ADD PLUGINS THAT ARE _NECESSARY_ FOR REPRODUCING THE ISSUE
    },
    config = {
      package_root = package_root,
      compile_path = install_path .. "/plugin/packer_compiled.lua",
      display = { non_interactive = true },
    },
  }
end
if vim.fn.isdirectory(install_path) == 0 then
  print "Installing nvim-tree and dependencies."
  vim.fn.system { "git", "clone", "--depth=1", "https://github.com/wbthomason/packer.nvim", install_path }
end
load_plugins()
require("packer").sync()
vim.cmd [[autocmd User PackerComplete ++once echo "Ready!" | lua setup()]]
vim.opt.termguicolors = true
vim.opt.cursorline = true

-- MODIFY NVIM-TREE SETTINGS THAT ARE _NECESSARY_ FOR REPRODUCING THE ISSUE
_G.setup = function()
  require("nvim-tree").setup {}
end

Steps to reproduce

1. sshfs remote-server local-directory
2. cd local-directory
3. nvim -nu /tmp/nvt-min.lua
4. :NvimTreeOpen
5. touch something at the ssh session of the remote server

Expected behavior

Nvim Tree would auto refresh the file tree in the local sshfs file system if there are changes at the remote server.

Actual behavior

:NvimTreeRefresh is necessary to refresh the file tree.

[alex-courtis]

nvim-tree uses file system watchers to automatically update. Unfortunately that cannot work over sshfs.

Options:

1. set filesystem_watchers.enable = false and auto_reload_on_write = true to allow tree refresh following buffer write
2. build a mechanism to watch sshfs similar to filesystem watchers

Please try 1

I'm not sure if 2 is even possible, and we don't have resources to build this any time soon.