Fix for plenary path error

Author: erichlf

tests/minimal_init.lua

@@ -1,15 +1,15 @@
 -- Copyright (c) 2024 Erich L Foster
--- 
+--
 -- Permission is hereby granted, free of charge, to any person obtaining a copy of
 -- this software and associated documentation files (the "Software"), to deal in
 -- the Software without restriction, including without limitation the rights to
 -- use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 -- of the Software, and to permit persons to whom the Software is furnished to do
 -- so, subject to the following conditions:
--- 
+--
 -- The above copyright notice and this permission notice shall be included in all
 -- copies or substantial portions of the Software.
--- 
+--
 -- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 -- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 -- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
@@ -18,6 +18,38 @@
 -- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 -- SOFTWARE.
 
+-- Create Neovim runtime directories needed by plenary
+local function ensure_dir(path)
+  local stat = vim.loop.fs_stat(path)
+  if not stat then
+    vim.fn.mkdir(path, "p")
+  end
+end
+
+-- Create the directories that Neovim and plenary expect to exist
+ensure_dir(vim.fn.stdpath("data"))
+ensure_dir(vim.fn.stdpath("cache"))
+
+-- Handle 'log' path safely
+local ok, log_path = pcall(function()
+  return vim.fn.stdpath("log")
+end)
+if not ok then
+  -- Fall back to a path within data directory for older Neovim versions
+  log_path = vim.fn.stdpath("data") .. "/log"
+end
+ensure_dir(log_path)
+
+-- Handle 'state' path safely
+local ok, state_path = pcall(function()
+  return vim.fn.stdpath("state")
+end)
+if not ok then
+  -- Fall back to a path within data directory
+  state_path = vim.fn.stdpath("data") .. "/state"
+end
+ensure_dir(state_path)
+
 local plenary_dir = os.getenv("PLENARY_DIR") or "/tmp/plenary.nvim"
 local is_not_a_directory = vim.fn.isdirectory(plenary_dir) == 0
 if is_not_a_directory then