#!/bin/bash -e

#
# Copyright 2022 The KodeRover Authors.
#
# 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.
#

# Add the copyright header for all fo files if not.

CURRENT_PATH=$(dirname "$BASH_SOURCE")
PROTECT_ROOT=$CURRENT_PATH/..
VENDOR_PATH=$CURRENT_PATH/../third_party
BOILERPLATE=$CURRENT_PATH/boilerplate.go.txt

echo "add copyright header"

for file in $(find "$PROTECT_ROOT" -not -path "$VENDOR_PATH/*" -not -name "zz_generated*" -not -name "escape.go" -not -name "signer.go" -type f -name \*.go); do
  if [[ $(grep -n "\/\*" -m 1 "$file" | cut -f1 -d:) == 1 ]] && [[ $(grep -n "Copyright" -m 1 "$file" | cut -f1 -d:) == 2 ]]
  then
    # the file already has a copyright.
	continue
  else
    cat "$BOILERPLATE" > "$file".tmp;
    echo "" >> "$file".tmp;
    cat "$file" >> "$file".tmp;
    mv "$file".tmp "$file";
  fi
done
