Add root folder name.

lua/lib/colors.lua

@@ -32,6 +32,7 @@ local function get_hl_groups()
     IndentMarker = { fg = '#8094b4' },
     Symlink = { gui = 'bold', fg = colors.cyan },
     FolderIcon = { fg = '#8094b4' },
+    RootFolder = { fg = colors.purple },
 
     ExecFile = { gui = 'bold', fg = colors.green },
     SpecialFile = { gui = 'bold,underline', fg = colors.yellow },

lua/lib/lib.lua

@@ -58,7 +58,7 @@ function M.init(with_open, with_render)
 end
 
 local function get_node_at_line(line)
-  local index = 2
+  local index = 3
   local function iter(entries)
     for _, node in ipairs(entries) do
       if index == line then
@@ -135,9 +135,9 @@ end
 function M.set_index_and_redraw(fname)
   local i
   if M.Tree.cwd == '/' then
-    i = 0
-  else
     i = 1
+  else
+    i = 2
   end
   local reload = false
 

lua/lib/renderer.lua

@@ -160,13 +160,22 @@ local special = {
   ["readme.md"] = true,
 }
 
+local root_folder_modifier = vim.g.lua_tree_root_folder_modifier or ':~'
+
 local function update_draw_data(tree, depth, markers)
   if tree.cwd and tree.cwd ~= '/' then
-    table.insert(lines, "..")
-    table.insert(hl, {'LuaTreeFolderName', index, 0, 2})
+    table.insert(lines, ".. (up a dir)")
+    table.insert(hl, {'LuaTreeFolderName', index, 0, 13})
     index = 1
   end
 
+  if tree.cwd then
+    local root_name = vim.fn.fnamemodify(tree.cwd, root_folder_modifier)
+    table.insert(lines, root_name)
+    table.insert(hl, {'LuaTreeRootFolder', index, 0, string.len(root_name)})
+    index = tree.cwd ~= '/' and 2 or 1
+  end
+
   for idx, node in ipairs(tree.entries) do
     local padding = get_padding(depth, idx, tree, node, markers)
     local offset = string.len(padding)