fix coloring without vim-devicons

README.md

@@ -52,10 +52,9 @@ nnoremap <leader>n :LuaTreeRefresh<CR>
 ![alt text](.github/tree.png?raw=true "file explorer")
 
 ## TODO
-- add docs
-- fix coloring when no dev icons
+- use libuv functions instead of `touch` and `mkdir` in `create_file()` and allow file creation with path like `foo/bar/baz`
+- better vim help docs
 - cd command to move faster accross the fs if needed
 - quickly find file in the directory structure
-- use libuv functions instead of `touch` and `mkdir` in `create_file()` and allow file creation with path like `foo/bar/baz`
-- tree should always stay on the left no matter what
+- tree should always stay on the side no matter what
 

lua/lib/format.lua

@@ -1,5 +1,7 @@
 local api = vim.api
 
+local HAS_DEV_ICONS = api.nvim_call_function('exists', { "*WebDevIconsGetFileTypeSymbol" }) == 1
+
 local function get_padding(depth)
     local str = ""
 
@@ -57,7 +59,7 @@ local function dev_icons(pathname, isdir, open)
 end
 
 local function get_icon_func_gen()
-    if api.nvim_call_function('exists', { "*WebDevIconsGetFileTypeSymbol" }) == 1 then
+    if HAS_DEV_ICONS then
         return dev_icons
     else
         return default_icons
@@ -136,7 +138,7 @@ local function highlight_line(buffer)
         elseif is_pic(node.path .. node.name) then
             highlight('LuaTreeImageFile', line, text_start + gitlen, -1)
 
-        else
+        elseif HAS_DEV_ICONS then
             for k, v in pairs(HIGHLIGHT_GROUPS) do
                 if string.match(node.name, k) ~= nil then
                     text_start = text_start + 4