zstd/tests/gzip/zgrep-f.sh

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#!/bin/sh
# Ensure that zgrep -f - works like grep -f -
# Before gzip-1.4, it would fail.
# Copyright (C) 2009-2016 Free Software Foundation, Inc.
# This program 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.
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
# limit so don't run it by default.
. "${srcdir=.}/init.sh"; path_prepend_ .
printf 'needle\nn2\n' > n || framework_failure_
cp n haystack || framework_failure_
gzip haystack || framework_failure_
fail=0
zgrep -f - haystack.gz < n > out 2>&1 || fail=1
compare out n || fail=1
if ${BASH_VERSION+:} false; then
set +o posix
# This failed with gzip 1.6.
cat n n >nn || framework_failure_
eval 'zgrep -h -f <(cat n) haystack.gz haystack.gz' >out || fail=1
compare out nn || fail=1
fi
# This failed with gzip 1.4.
echo a-b | zgrep -e - > /dev/null || fail=1
Exit $fail