feat: Highlight gitignored files (and fix g:nvim_tree_gitignore) (#268)

lua/nvim-tree/utils.lua

@@ -31,6 +31,25 @@ function M.path_split(path)
   return path:gmatch('[^'..path_separator..']+'..path_separator..'?')
 end
 
+---Get the basename of the given path.
+---@param path string
+---@return string
+function M.path_basename(path)
+  path = M.path_remove_trailing(path)
+  local i = path:match("^.*()" .. path_separator)
+  if not i then return path end
+  return path:sub(i + 1, #path)
+end
+
+---Get a path relative to another path.
+---@param path string
+---@param relative_to string
+---@return string
+function M.path_relative(path, relative_to)
+  local p, _ = path:gsub("^" .. M.path_to_matching_str(M.path_add_trailing(relative_to)), "")
+  return p
+end
+
 function M.path_add_trailing(path)
   if path:sub(-1) == path_separator then
     return path
@@ -40,7 +59,8 @@ function M.path_add_trailing(path)
 end
 
 function M.path_remove_trailing(path)
-  return path:gsub(path_separator..'$', '')
+  local p, _ = path:gsub(path_separator..'$', '')
+  return p
 end
 
 M.path_separator = path_separator