Add copyright check #2

	# Copyright (c) 2020-2021, NVIDIA CORPORATION.
	#
	# 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.
	name: Copyright check

	on:
	pull_request:

	jobs:
	main:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	with:
	path: ${{ github.run_id }}
	fetch-depth: 0

	- name: Run on change-set
	run: \|
	cd ${{ github.run_id }}

	# Files ending with .py should have Copyright notice in the first 10 lines
	find_files_with_missing_copyright() {
	find ./ -type f -name '*.py' \| while read path; do
	echo -en $path"\t"
	head -n 10 $path \| tr '\n' '\t' \| sed 's/\t$/\n/'
	done \
	\| egrep -iv 'Copyright.NVIDIA CORPORATION.' \
	\| while read line; do
	echo $line \| cut -d' ' -f1
	done
	}


	declare RESULT=($(find_files_with_missing_copyright)) # (..) = array

	if [ "${#RESULT[@]}" -gt 0 ]; then
	echo "Error: Found files with missing copyright:"
	for (( i=0; i<"${#RESULT[@]}"; i++ )); do
	echo "path= ${RESULT[$i]}"
	done
	exit 1;
	else
	echo "Ok: All (Python) files start with copyright notice"
	fi

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