class Bundler::Fetcher::CompactIndex

def available?
  unless SharedHelpers.md5_available?
    Bundler.ui.debug("FIPS mode is enabled, bundler can't use the CompactIndex API")
    return nil
  end
  # Read info file checksums out of /versions, so we can know if gems are up to date
  compact_index_client.available?
rescue CompactIndexClient::Updater::MismatchedChecksumError => e
  Bundler.ui.debug(e.message)
  nil
end