bug: File list fails to render with preview open and show_hidden

[dwoznicki]

Did you check the docs and existing issues?

• I have read the docs
• I have searched the existing issues

Neovim version (nvim -v)

NVIM v0.10.0

Operating system/version

macOS Sonoma v14.6.1

Describe the bug

When navigating up a directory tree with the preview window open, view_options.show_hidden = true, and using -, the file list will fail to render after a couple of navigations.

What is the severity of this bug?

breaking (some functionality is broken) tolerable (can work around it)

Steps To Reproduce

Here's a recording of the bug for me.

oil_nvim_render_fails_with_preview_open.mov

1. Open Oil.
2. Enable the preview window.
3. Begin navigating up the directory tree with -.
4. After pressing - a twice, the file list buffer fails to populate. This happens reliably for me, regardless of what file I'm initially on when I open Oil.

Expected Behavior

The file list should be rendered.

Directory structure

No response

Repro

-- save as repro.lua
-- run with nvim -u repro.lua
-- DO NOT change the paths
local root = vim.fn.fnamemodify("./.repro", ":p")

-- set stdpaths to use .repro
for _, name in ipairs({ "config", "data", "state", "runtime", "cache" }) do
  vim.env[("XDG_%s_HOME"):format(name:upper())] = root .. "/" .. name
end

-- bootstrap lazy
local lazypath = root .. "/plugins/lazy.nvim"
if not vim.loop.fs_stat(lazypath) then
  vim.fn.system({
    "git",
    "clone",
    "--filter=blob:none",
    "--single-branch",
    "https://github.com/folke/lazy.nvim.git",
    lazypath,
  })
end
vim.opt.runtimepath:prepend(lazypath)

-- install plugins
local plugins = {
  "folke/tokyonight.nvim",
  {
        "stevearc/oil.nvim",
        config = function()
            require("oil").setup({
              -- add any needed settings here
                view_options = {show_hidden = true}
            })
        end,
  },
  -- add any other plugins here
}
require("lazy").setup(plugins, {
  root = root .. "/plugins",
})

vim.cmd.colorscheme("tokyonight")
-- add anything else here

Did you check the bug with a clean config?

• I have confirmed that the bug reproduces with nvim -u repro.lua using the repro.lua file above.

Thoughts

Given that the bug only occurs when hidden files are enabled, I suspect it has something to do with the top .. entry.

EDIT 1: It appears that this autocommand runs when the list renders properly, and doesn't run when it fails to render.

vim.api.nvim_create_autocmd("BufReadCmd", {
  group = aug,
  pattern = scheme_pattern,
  nested = true,
  callback = function(params)
    load_oil_buffer(params.buf)
  end,
})

EDIT 2: When the list fails to render, the filetype is unset. Could explain why the autocommand isn't running.

EDIT 3: Confirmed that removing the ".." entry from the list solves the issue. Lowering the severity to "tolerable".

[stevearc]

This was a tricky one. Nested autocmds continue to be the bane of my existence. Should be fixed now!