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#!/bin/sh
# Check that "grep -r" does the right thing with symbolic links.
# Copyright (C) 2012-2021 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 <https://www.gnu.org/licenses/>.
# written by Paul Eggert
. "${srcdir=.}/init.sh"; path_prepend_ ../src
mkdir dir || framework_failure_
echo a > dir/a || framework_failure_
echo b > dir/b || framework_failure_
ln -s a dir/c || framework_failure_
ln -s . dir/d || framework_failure_
ln -s dangling dir/e || framework_failure_
touch out || framework_failure_
for recursion in '' -r -R
do
for files in '' '*'
do
case $recursion,$files in
-R,* | *,'*') expected_status=2 ;;
*) expected_status=0 ;;
esac
(cd dir && grep $recursion '^' $files <a ) >grepout
test $? -eq $expected_status || fail=1
case $recursion,$files in
,)
exp='a\n' ;;
,'*' | -R,)
exp='a:a\nb:b\nc:a\n' ;;
-r,)
exp='a:a\nb:b\n' ;;
-r,'*')
exp='a:a\nb:b\nc:a\nd/a:a\nd/b:b\n' ;;
-R,'*')
exp='a:a\nb:b\nc:a\nd/a:a\nd/b:b\nd/c:a\n' ;;
*)
framework_failure_ ;;
esac
printf "$exp" >exp || framework_failure_
LC_ALL=C sort grepout >out || fail=1
compare exp out || fail=1
done
done
Exit $fail
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