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#! /bin/sh

# Check the copyrights.

c1=__wt.1$$
c2=__wt.2$$
c3=__wt.3$$
c4=__wt.4$$
trap 'rm -f $c1 $c2 $c3 $c4; exit 0' 0 1 2 3 13 15

year=`date +%Y`

cat > $c1 <<ENDOFTEXT
 * Copyright (c) 2014-$year MongoDB, Inc.
 * Copyright (c) 2008-2014 WiredTiger, Inc.
 *	All rights reserved.
 *
 * See the file LICENSE for redistribution information.
ENDOFTEXT

# Copyright for files WiredTiger does not own.
cat > $c2 <<ENDOFTEXT
 * Public Domain 2014-$year MongoDB, Inc.
 * Public Domain 2008-2014 WiredTiger, Inc.
 *
 * This is free and unencumbered software released into the public domain.
ENDOFTEXT

cat > $c3 <<ENDOFTEXT
# Copyright (c) 2014-$year MongoDB, Inc.
# Copyright (c) 2008-2014 WiredTiger, Inc.
#	All rights reserved.
#
# See the file LICENSE for redistribution information.
ENDOFTEXT

cat > $c4 <<ENDOFTEXT
# Public Domain 2014-$year MongoDB, Inc.
# Public Domain 2008-2014 WiredTiger, Inc.
#
# This is free and unencumbered software released into the public domain.
ENDOFTEXT

check()
{
	# Skip files in which WiredTiger holds no rights.
	if `egrep "skip	$1" s_copyright.list > /dev/null`; then
		return;
	fi

	# It's okay if the file doesn't exist: we may be running in a release
	# tree with some files removed.
	test -f ../$i || return

	# Check for a correct copyright header.
	if `sed -e 2,5p -e 6q -e d ../$1 | diff - $c1 > /dev/null` ; then
		return;
	fi
	if `sed -e 2,4p -e 5q -e d ../$1 | diff - $c2 > /dev/null` ; then
		return;
	fi
	if `sed -e 3,6p -e 7q -e d ../$1 | diff - $c3 > /dev/null` ; then
		return;
	fi
	if `sed -e 3,5p -e 6q -e d ../$1 | diff - $c4 > /dev/null` ; then
		return;
	fi
	if `sed -e 1,3p -e 4q -e d ../$1 | diff - $c4 > /dev/null` ; then
		return;
	fi

	echo "$1: copyright information is incorrect"
}

# Search for files, skipping some well-known 3rd party directories.
for i in `cd .. &&
    find [a-z]* -name '*.[chi]' \
        -o -name '*.cxx' -o -name '*.in' -o -name '*.java' -o -name '*.py' |
    sed	-e '/Makefile.in/d' \
	-e '/^build_posix\//d' \
        -e '/api\/leveldb\/basho\//d' \
        -e '/api\/leveldb\/hyperleveldb\//d' \
        -e '/api\/leveldb\/leveldb\//d' \
        -e '/api\/leveldb\/rocksdb\//d' \
        -e '/test\/3rdparty\//d' \
        -e '/tools\/wtperf_stats\/3rdparty\//d' \
	-e 's/^\.\///'`
do
	check $i
done

# A few special cases: LICENSE, documentation, wt utility, some of which
# have more than one copyright notice in the file. For files that have
# only a single copyright notice, we give it to MongoDB, from 2008 to now.
string1="Copyright \(c\) 2014-$year MongoDB, Inc."
string2="Copyright \(c\) 2008-$year MongoDB, Inc."
string3="printf.*Copyright \(c\) 2008-$year MongoDB, Inc."
special_copyright()
{
	cnt=`egrep "$3" ../$1 | wc -l`
	if test $cnt -ne $2; then
		echo "$1: copyright information is incorrect"
	fi
}

special_copyright LICENSE 1 "$string1"
special_copyright src/docs/build-javadoc.sh 1 "$string2"
special_copyright src/docs/style/footer.html 2 "$string2"
special_copyright src/utilities/util_cpyright.c 1 "$string3"