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#! /bin/sh
# Copyright (C) 2001-2020 Free Software Foundation, Inc.
# This file is part of GNU Emacs.
# GNU Emacs is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# GNU Emacs is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
if [ $# != 2 ]; then
cat <<EOF
Usage: $0 OLD-TAR NEW-TAR
Print a diff of the files in OLD-TAR and NEW-TAR. Used for checking
the contents of Emacs tar files.
EOF
exit 1;
fi
old_tar=$1
new_tar=$2
old_tmp=/tmp/old.$$
new_tmp=/tmp/new.$$
trap "rm -f $old_tmp $new_tmp; exit 1" 1 2 15
tar tzf $old_tar | sed -e 's,^[^/]*,,' | sort > $old_tmp
tar tzf $new_tar | sed -e 's,^[^/]*,,' | sort > $new_tmp
diff -u $old_tmp $new_tmp
rm -f $new_tmp $old_tmp
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