config() {
  NEW="$1"
  OLD="$(dirname $NEW)/$(basename $NEW .new)"
  if [ ! -r $OLD ]; then
    mv $NEW $OLD
  elif [ "$(cat $OLD | md5sum)" = "$(cat $NEW | md5sum)" ]; then
    rm $NEW
  fi
}

config etc/fwupd.conf.new
config etc/fwupd/remotes.d/fwupd.conf.new
config etc/fwupd/remotes.d/lvfs-testing.conf.new
config etc/fwupd/remotes.d/lvfs.conf.new
config etc/fwupd/remotes.d/vendor.conf.new
config etc/pki/fwupd-metadata/GPG-KEY-Linux-Vendor-Firmware-Service.new
config etc/pki/fwupd/GPG-KEY-Hughski-Limited.new
config etc/pki/fwupd/GPG-KEY-Linux-Vendor-Firmware-Service.new