clang-format ignores my .clang-format file

[samuel-garmany]

I was going to make this an issue but I couldn't get the minimal config to work.

I'm using Fedora Silverblue but running neovim with NvChad in a toolbox. When I format through saving or fm none-ls only formats to default LLVM style when my .clang-format is set to microsoft. The same config works on Mac so I'm not sure why linux isn't happy. I've tried in a Fedora and an Arch container.

It also works to call clang-format with the file:

$ clang-format --style file ./main.cpp
./main.cpp
#include <iostream>

int main()
{
    std::cout << "Hello World" << std::endl;

    return 0;
}

The problem could be with my configs but that doesn't really explain why Mac works when Linux doesn't.

Relevant config snippets:

mappings.lua

    ["<leader>fm"] = {
      function()
        vim.lsp.buf.format { async = true }
      end,
      "LSP formatting",
    },

plugins.lua

  {
    "nvimtools/none-ls.nvim",
    event = "VeryLazy",
    opts = function ()
      return require "custom.configs.null-ls"
    end,
  },

null-ls.lua

local augroup = vim.api.nvim_create_augroup("LspFormatting", {})
local null_ls = require("null-ls")

local opts = {
  sources = {
    null_ls.builtins.formatting.clang_format,
  },
  on_attach = function (client, bufnr)
    if client.supports_method("textDocument/formatting") then
      vim.api.nvim_clear_autocmds({
        group = augroup,
        buffer = bufnr,
      })
      vim.api.nvim_create_autocmd("BufWritePre", {
        group = augroup,
        buffer = bufnr,
        callback = function()
          vim.lsp.buf.format({ bufnr = bufnr })
        end,
      })
    end
  end,
}
return opts

How can I make clang-format use my .clang-format file?