nvim-config/plugins/cpp.lua

-- 在 ~/.config/nvim/lua/plugins/lsp.lua 中添加或修改
return {
  {
    "neovim/nvim-lspconfig",
    opts = {
      servers = {
        clangd = {
          cmd = {
            "clangd",
            "--background-index",
            "--clang-tidy",
            "--header-insertion=never",
            "--completion-style=detailed",
            "--query-driver=/usr/bin/gcc,/usr/bin/g++,/usr/bin/clang,/usr/bin/clang++",
            "--all-scopes-completion",
            "--cross-file-rename",
          },
          filetypes = { "c", "cpp", "objc", "objcpp", "cuda" },
          -- 设置编译命令目录为CMake生成的compile_commands.json所在目录
          root_dir = function(fname)
            return require("lspconfig.util").root_pattern("compile_commands.json", "compile_flags.txt", ".git")(fname)
              or vim.fn.getcwd()
          end,
        },
      },
    },
  },
}