feat: first draft

lua/oil/pathutil.lua

@@ -0,0 +1,37 @@
+local fs = require("oil.fs")
+local M = {}
+
+---@param path string
+---@return string
+M.parent = function(path)
+  -- Do I love this hack? No I do not.
+  -- Does it work? Yes. Mostly. For now.
+  if fs.is_windows then
+    if path:match("^/%a+/?$") then
+      return path
+    end
+  end
+  if path == "/" then
+    return "/"
+  elseif path == "" then
+    return ""
+  elseif vim.endswith(path, "/") then
+    return path:match("^(.*/)[^/]*/$") or ""
+  else
+    return path:match("^(.*/)[^/]*$") or ""
+  end
+end
+
+---@param path string
+---@return nil|string
+M.basename = function(path)
+  if path == "/" or path == "" then
+    return
+  elseif vim.endswith(path, "/") then
+    return path:match("^.*/([^/]*)/$")
+  else
+    return path:match("^.*/([^/]*)$")
+  end
+end
+
+return M