bug: Error when deleting dangling symlink with delete_to_trash set to true

[Bekaboo]

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-dev-1627+g879617c9bb

Operating system/version

Linux 6.1.60-1-lts

Describe the bug

Error when deleting dangling symlink with delete_to_trash set to true:

E5108: Error executing lua: ...es/start/oil.nvim/lua/oil/adapters/trash/freedesktop.lua:78: attempt to index a nil value

stack traceback:
        ...es/start/oil.nvim/lua/oil/adapters/trash/freedesktop.lua:78: in function 'get_write_trash_dir'
        ...es/start/oil.nvim/lua/oil/adapters/trash/freedesktop.lua:523: in function 'create_trash_info'
        ...es/start/oil.nvim/lua/oil/adapters/trash/freedesktop.lua:618: in function 'delete_to_trash'
        .../pack/packages/start/oil.nvim/lua/oil/adapters/files.lua:514: in function 'perform_action'
        ...te/pack/packages/start/oil.nvim/lua/oil/mutator/init.lua:454: in function 'next_action'
        ...te/pack/packages/start/oil.nvim/lua/oil/mutator/init.lua:457: in function 'process_actions'
        ...te/pack/packages/start/oil.nvim/lua/oil/mutator/init.lua:537: in function 'cb'
        ...pack/packages/start/oil.nvim/lua/oil/mutator/preview.lua:129: in function 'confirm'
        ...pack/packages/start/oil.nvim/lua/oil/mutator/preview.lua:177: in function <...pack/packages/start/oil.nvim/lu
a/oil/mutator/preview.lua:176>

What is the severity of this bug?

breaking (some functionality is broken)

Steps To Reproduce

1. Create minimal init.lua as shown below
2. Create a dangling symlink: ln -s foo bar
3. nvim --clean -u init.lua .
4. Goto the symlink, delete it in oil buffer, save it and confirm deletion
5. See the error

Expected Behavior

No error

Directory structure

bar -> foo (broken link)

Repro

local tmp = '/tmp'
local data = tmp .. '/' .. (vim.env.NVIM_APPNAME or 'nvim')
local package_root = data .. '/site'
local clone_root = package_root .. '/pack/packages/start'
local clone_info = {
  {
    path = clone_root .. '/oil.nvim',
    url = 'https://github.com/stevearc/oil.nvim.git',
  },
}

vim.fn.mkdir(clone_root, 'p')
vim.opt.pp:prepend(package_root)
vim.opt.rtp:prepend(package_root)
vim.opt.mousemoveevent = true

for _, info in ipairs(clone_info) do
  if not vim.loop.fs_stat(info.path) then
    vim.notify('cloning ' .. info.url, vim.log.levels.INFO)
    vim.fn.system({ 'git', 'clone', info.url, info.path })
  end
end

require('oil').setup({
  delete_to_trash = true,
})

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.

[stevearc]

Should be fixed

[Bekaboo]

Thanks!