add icon padding

README.md

@@ -40,6 +40,7 @@ let g:nvim_tree_group_empty = 1 " 0 by default, compact folders that only contai
 let g:nvim_tree_lsp_diagnostics = 1 "0 by default, will show lsp diagnostics in the signcolumn. See :help nvim_tree_lsp_diagnostics
 let g:nvim_tree_disable_window_picker = 1 "0 by default, will disable the window picker.
 let g:nvim_tree_hijack_cursor = 0 "1 by default, when moving cursor in the tree, will position the cursor at the start of the file on the current line
+let g:nvim_tree_icon_padding = ' ' "one space by default, used for rendering the space between the icon and the filename. Use with caution, it could break rendering if you set an empty string depending on your font.
 let g:nvim_tree_window_picker_exclude = {
     \   'filetype': [
     \     'packer',

doc/nvim-tree-lua.txt

@@ -293,6 +293,10 @@ Can be 0 or 1. 1 by default.
 When 1, moving cursor in the tree will position the cursor at the start 
 of the file on the current line.
 
+|g:nvim_tree_icon_padding|                *g:nvim_tree_icon_padding*
+
+One space by default, used for rendering the space between the icon and the filename. Use with caution, it could break rendering if you set an empty string depending on your font.
+
 ==============================================================================
 INFORMATIONS				        *nvim-tree-info*
 

lua/nvim-tree/renderer.lua

@@ -22,6 +22,8 @@ local set_folder_hl = function(line, depth, git_icon_len, _, hl_group)
   table.insert(hl, {hl_group, line, depth+git_icon_len, -1})
 end
 
+local icon_padding = vim.g.nvim_tree_icon_padding or " "
+
 if icon_state.show_folder_icon then
   get_folder_icon = function(open, is_symlink, has_children)
     local n = ""
@@ -42,7 +44,7 @@ if icon_state.show_folder_icon then
         n = icon_state.icons.folder_icons.empty
       end
     end
-    return n.." "
+    return n..icon_padding
   end
   set_folder_hl = function(line, depth, icon_len, name_len, hl_group)
     table.insert(hl, {hl_group, line, depth+icon_len, depth+icon_len+name_len+get_trailing_length()})
@@ -62,12 +64,12 @@ if icon_state.show_file_icon then
       if hl_group then
         table.insert(hl, { hl_group, line, depth, depth + #icon + 1 })
       end
-      return icon.." "
+      return icon..icon_padding
     elseif string.match(extension, "%.(.*)") then
       -- If there are more extensions to the file, try to grab the icon for them recursively
       return get_file_icon(fname, string.match(extension, "%.(.*)"), line, depth)
     else
-      return #icon_state.icons.default > 0 and icon_state.icons.default.." " or ""
+      return #icon_state.icons.default > 0 and icon_state.icons.default..icon_padding or ""
     end
   end
 
@@ -76,14 +78,14 @@ end
 local get_symlink_icon = function() return icon_state.icons.symlink end
 if icon_state.show_file_icon then
   get_symlink_icon = function()
-    return #icon_state.icons.symlink > 0 and icon_state.icons.symlink.." " or ""
+    return #icon_state.icons.symlink > 0 and icon_state.icons.symlink..icon_padding or ""
   end
 end
 
 local get_special_icon = function() return icon_state.icons.default end
 if icon_state.show_file_icon then
   get_special_icon = function()
-    return #icon_state.icons.default > 0 and icon_state.icons.default.." " or ""
+    return #icon_state.icons.default > 0 and icon_state.icons.default..icon_padding or ""
   end
 end
 
@@ -204,7 +206,7 @@ if icon_state.show_git_icon then
     end
     for _, v in ipairs(icons) do
       table.insert(hl, { v.hl, line, depth+icon_len+#icon, depth+icon_len+#icon+#v.icon })
-      icon = icon..v.icon.." "
+      icon = icon..v.icon..icon_padding
     end
 
     return icon