LunarVim/ftplugin/c.lua

local clangd_flags = { "--background-index" }

if O.lang.clang.cross_file_rename then
  table.insert(clangd_flags, "--cross-file-rename")
end

table.insert(clangd_flags, "--header-insertion=" .. O.lang.clang.header_insertion)

require("lspconfig").clangd.setup {
  cmd = { DATA_PATH .. "/lspinstall/cpp/clangd/bin/clangd", unpack(clangd_flags) },
  on_attach = require("lsp").common_on_attach,
  handlers = {
    ["textDocument/publishDiagnostics"] = vim.lsp.with(vim.lsp.diagnostic.on_publish_diagnostics, {
      virtual_text = O.lang.clang.diagnostics.virtual_text,
      signs = O.lang.clang.diagnostics.signs,
      underline = O.lang.clang.diagnostics.underline,
      update_in_insert = true,
    }),
  },
}

if O.lang.clang.autoformat then
  require("lv-utils").define_augroups {
    _clang_autoformat = {
      { "BufWritePre *.c lua vim.lsp.buf.formatting_sync(nil,1000)" },
      { "BufWritePre *.h lua vim.lsp.buf.formatting_sync(nil,1000)" },
      { "BufWritePre *.cpp lua vim.lsp.buf.formatting_sync(nil,1000)" },
      { "BufWritePre *.hpp lua vim.lsp.buf.formatting_sync(nil,1000)" },
    },
  }
end