feat: add hide_root_folder (#728)

lua/nvim-tree.lua

@@ -415,6 +415,7 @@ local DEFAULT_OPTS = {
   auto_close          = false,
   hijack_cursor       = false,
   update_cwd          = false,
+  hide_root_folder    = false,
   update_focused_file = {
     enable = false,
     update_cwd = false,

lua/nvim-tree/lib.lua

@@ -58,7 +58,7 @@ function M.redraw()
 end
 
 local function get_node_at_line(line)
-  local index = 2
+  local index = view.View.hide_root_folder and 1 or 2
   local function iter(entries)
     for _, node in ipairs(entries) do
       if index == line then
@@ -101,6 +101,7 @@ end
 
 function M.get_node_at_cursor()
   local winnr = view.get_winnr()
+  local hide_root_folder = view.View.hide_root_folder
   if not winnr then
     return
   end
@@ -111,7 +112,7 @@ function M.get_node_at_cursor()
     local help_text = get_node_at_line(line+1)(help_lines)
     return {name = help_text}
   else
-    if line == 1 and M.Tree.cwd ~= "/" then
+    if line == 1 and M.Tree.cwd ~= "/" and not hide_root_folder then
       return { name = ".." }
     end
 
@@ -202,7 +203,8 @@ end
 
 function M.set_index_and_redraw(fname)
   local i
-  if M.Tree.cwd == '/' then
+  local hide_root_folder = view.View.hide_root_folder
+  if M.Tree.cwd == '/' or hide_root_folder then
     i = 0
   else
     i = 1

lua/nvim-tree/renderer/init.lua

@@ -266,7 +266,9 @@ local function update_draw_data(tree, depth, markers)
     ["readme.md"] = true,
   }
 
-  if tree.cwd and tree.cwd ~= '/' then
+  local hide_root_folder = view.View.hide_root_folder
+
+  if tree.cwd and tree.cwd ~= '/' and not hide_root_folder then
     local root_name = utils.path_join({
       utils.path_remove_trailing(vim.fn.fnamemodify(tree.cwd, root_folder_modifier)),
       ".."

lua/nvim-tree/view.lua

@@ -9,6 +9,7 @@ end
 M.View = {
   bufnr = nil,
   tabpages = {},
+  hide_root_folder = false,
   winopts = {
     relativenumber = false,
     number = false,
@@ -144,6 +145,7 @@ function M.setup(opts)
   M.View.side = options.side
   M.View.width = options.width
   M.View.height = options.height
+  M.View.hide_root_folder = options.hide_root_folder
   M.View.auto_resize = opts.auto_resize
   if options.mappings.custom_only then
     M.View.mappings = options.mappings.list