nvim-config/lua/custom/plugins/oil.lua

-- Fix oil absolute path to relative path conversion
vim.api.nvim_create_augroup('OilRelPathFix', {})
vim.api.nvim_create_autocmd('BufLeave', {
  group = 'OilRelPathFix',
  pattern = 'oil:///*',
  callback = function()
    vim.cmd 'cd .'
  end,
})

return {
  'stevearc/oil.nvim',
  -- Optional dependencies
  dependencies = { 'nvim-tree/nvim-web-devicons' },
  config = function()
    local oil = require 'oil'
    oil.setup {
      view_options = {
        show_hidden = true,
      },
    }

    vim.keymap.set('n', '<leader>fe', function()
      if vim.bo.filetype == 'oil' then
        oil.close()
      else
        oil.open()
      end
    end, { desc = '[F]ile [E]xplorer' })
  end,
}