feat(nvim/oil): A keymap to recursively open directories

Because oil.nvim don't group empty directories.

REF: https://github.com/stevearc/oil.nvim/issues/346
REF: https://github.com/stevearc/oil.nvim/pull/452

.config/nvim/lua/null/plugins/file-explorer.lua

@@ -28,6 +28,31 @@ return {
                 default_file_explorer = true,
                 keymaps = {
                     ["q"] = "actions.close",
+                    ["<A-CR>"] = {
+                        desc = "Recursively Open directores",
+                        callback = function()
+                            local oil = require("oil")
+                            local dir = oil.get_current_dir()
+                            local cursor = oil.get_cursor_entry()
+
+                            local function o()
+                                oil.open(dir .. cursor.name)
+                                vim.wait(50)
+
+                                dir = oil.get_current_dir()
+                                cursor = oil.get_cursor_entry()
+
+                                local bn = vim.fn.bufnr()
+                                local lines = vim.api.nvim_buf_line_count(bn)
+
+                                if lines == 1 and cursor ~= nil and cursor.type == "directory" then
+                                    o()
+                                end
+                            end
+
+                            o()
+                        end,
+                    },
                 },
             })
         end