Non-deterministic behavior when there are multiple parent folders with .luarc.json.

How are you using the lua-language-server?

NeoVim

Which OS are you using?

Linux

What is the issue affecting?

Diagnostics/Syntax Checking

Expected Behaviour

When the language server processes a Lua file, it should use the .luarc.json file that is closest (in the chain of parent folders) to the file being opened. So in this case:

dir1
 |- .luarc.json
  \_ dir2
        |- .luarc.json
         \_ code.lua

Opening code.lua should use dir2/.luarc.json.

Actual Behaviour

Non-deterministic behavior: sometimes it uses dir1/.luarc.json and sometimes it uses dir2/.luarc.json. This is a big problem e.g. in cases where those two files specify different versions of Lua.

Reproduction steps

Create the directory/file structure above, specifying different version of Lua in each one, then put some code in code.lua that is sensitive to the version, then run lua-language-server (I run it through Neovim) on code.lua, and observe sometimes it assumes one version of Lua and other times it uses the other.

Deleting dir1/.luarc.json then eliminates the non-deterministic behavior and it always uses dir2/.luarc.json.

Additional Notes

No response

Log File

No response

首先，使用两个 .luarc.json 文件复现目录结构，并通过 Neovim 打开 code.lua。跟踪 lua-language-server 如何发现配置文件，并比较配置了不同 Lua 版本时的重复运行结果。当最近的父级目录配置能够始终一致地被选中，且复现不再显示非确定性诊断时，即表示完成。