needs_copyright.sh

#!/bin/sh

#################################################################
#								#
# Copyright (c) 2020-2023 YottaDB LLC and/or its subsidiaries.	#
# All rights reserved.						#
#								#
#	This source code contains the intellectual property	#
#	of its copyright holder(s), and is made available	#
#	under a license.  If you do not know the terms of	#
#	the license, please stop and do not read further.	#
#								#
#################################################################

# Determines whether a file should need a copyright by its name
# Returns 0 if it needs a copyright and 1 otherwise.
# Returns 2 if an error occurs.
set -eu

if ! [ $# = 1 ]; then
	echo "usage: $0 <filename>"
	exit 2
fi

file="$1"

# Don't require deleted files to have a copyright
if ! [ -e "$file" ]; then
       exit 1
fi

skipextensions="rst png html in"	# List of extensions that cannot have copyrights.
	# .rst  -> file used to generate documentation. Since final documentation has
	#		copyrights, this one does not require it.
	# .png  -> these are images (i.e. binary files) used in the documentation.
	#		Same reason as .rst for not requiring a copyright.
	# .html -> there are a couple of files currently under doc/templates which don't need copyrights.
	# .in   -> e.g. ydbposix.xc.in stores the external-call/call-out table which does not currently
	#		have a provision for comment characters.
if echo "$skipextensions" | grep -q -w "$(echo "$file" | awk -F . '{print $NF}')"; then
	exit 1
fi

# Below is a list of specific files that do not have a copyright so ignore them
skiplist="COPYING README.md libmath.ref"
for skipfile in $skiplist; do
	if [ $file = $skipfile ]; then
		exit 1
	fi
done