#!/bin/zsh
setopt extended_glob
echo '
// Copyright 2018 go-swagger maintainers
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
' > /tmp/copyright.txt

for i in (^vendor/)#*.go # or whatever other pattern...
do
  if ! grep -q Copyright $i
  then
    echo "cat /tmp/copyright.txt $i >$i.new && mv $i.new $i"
  fi
done

rm /tmp/copyright.txt
