From 08c328b8b079334e7fb38472339c4f8ba1a0df3b Mon Sep 17 00:00:00 2001
From: Phạm Bình An <111893501+brianhuster@users.noreply.github.com>
Date: Tue, 18 Mar 2025 05:41:07 +0700
Subject: feat(runtime): Lua ftplugin 'includeexpr' #32719

Problem:
Current `'includeexpr'` in runtime/ftplugin/lua.vim doesn't work with Nvim Lua.

Solution:
Provide an improved 'includeexpr' for Lua in "ftplugin/lua.lua".

Closes: https://github.com/neovim/neovim/issues/32490
---
 runtime/lua/vim/_ftplugin/lua.lua | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 runtime/lua/vim/_ftplugin/lua.lua

(limited to 'runtime/lua')

diff --git a/runtime/lua/vim/_ftplugin/lua.lua b/runtime/lua/vim/_ftplugin/lua.lua
new file mode 100644
index 0000000000..588433409b
--- /dev/null
+++ b/runtime/lua/vim/_ftplugin/lua.lua
@@ -0,0 +1,26 @@
+local M = {}
+
+--- @param module string
+---@return string
+function M.includeexpr(module)
+  ---@param fname string
+  ---@return boolean
+  local function filereadable(fname)
+    return vim.fn.filereadable(fname) == 1
+  end
+
+  local fname = module:gsub('%.', '/')
+
+  local root = vim.fs.root(vim.api.nvim_buf_get_name(0), 'lua') or vim.fn.getcwd()
+  for _, suf in ipairs { '.lua', '/init.lua' } do
+    local path = vim.fs.joinpath(root, 'lua', fname .. suf)
+    if filereadable(path) then
+      return path
+    end
+  end
+
+  local modInfo = vim.loader.find(module)[1]
+  return modInfo and modInfo.modpath or module
+end
+
+return M
-- 
cgit