## Description
<!-- Describe the big picture of your changes to communicate to the
maintainers
why we should accept this pull request. -->
Nvim 0.11 had some breaking changes in lsp related parts. And one of
them is that if the root_dir field of lsp config is a function, the
bufnr and a function would be passed instead of the file name in nvim
0.10. As a result, the configurations of extra.lang.clangd broke.
However, before the breaking changes of mason and mason-lspconfig, the
configurations of clangd still worked. So maybe what really broke the
configurations is mason-lspconfig, which uses a new way to enable lsp in
v2.
I rewrite the root_dir function and make it work both on 0.11 and 0.10.
It would check whether the first argument is a string to decide whether
to adapt the new interface.
To test whether it works, you can just add a plugin/clangd.lua to you
personal config with the content below:
```lua
return {
"neovim/nvim-lspconfig",
opts = {
servers = {
clangd = {
root_dir = function(bufnr, ondir)
local root_directory = function(fname)
return require("lspconfig.util").root_pattern(
"Makefile",
"configure.ac",
"configure.in",
"config.h.in",
"meson.build",
"meson_options.txt",
"build.ninja"
)(fname) or require("lspconfig.util").root_pattern("compile_commands.json", "compile_flags.txt")(
fname
) or require("lspconfig.util").find_git_ancestor(fname)
end
if type(bufnr) == "string" then
return root_directory(bufnr)
else
local fname = vim.api.nvim_buf_get_name(bufnr)
ondir(root_directory(fname))
end
end,
},
},
},
}
```
## Checklist
- [x] I've read the
[CONTRIBUTING](https://github.com/LazyVim/LazyVim/blob/main/CONTRIBUTING.md)
guidelines.
## Description
This prevents the following popup appearing when opening nvim:
```
Failed to run `config` for nvim-cmp
.../lazy/LazyVim/lua/lazyvim/plugins/extras/lang/clangd.lua:108: attempt to index field 'sorting' (a nil value)
# stacktrace:
- /LazyVim/lua/lazyvim/plugins/extras/lang/clangd.lua:108 _in_ **values**
- ~/.config/nvim/lua/config/lazy.lua:17
- ~/.config/nvim/init.lua:2
```
## Checklist
- [X] I've read the
[CONTRIBUTING](https://github.com/LazyVim/LazyVim/blob/main/CONTRIBUTING.md)
guidelines.
