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#!/bin/sh
# Exercise split's new --filter option.
# Copyright (C) 2011-2015 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/>.
. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
print_ver_ split
xz --version || skip_ "xz (better than gzip/bzip2) required"
for total_n_lines in 5 3000 20000; do
seq $total_n_lines > in || framework_failure_
for i in 2 51 598; do
# Don't create too many files/processes.
# Starting 10k (or even "only" 1500) processes would take a long time,
# and would provide little added benefit.
case $i:$total_n_lines in 2:5);; *) continue;; esac
split -l$i --filter='xz -1 > $FILE.xz' in out- || fail=1
xz -dc out-* > out || fail=1
compare in out || fail=1
rm -f out*
done
rm -f in
done
# Show how --elide-empty-files works with --filter:
# split does not run the command (and effectively elides the file)
# only when the output to that command would have been empty.
split -e -n 10 --filter='xz > $FILE.xz' /dev/null || fail=1
stat x?? 2>/dev/null && fail=1
# Ensure this invalid combination is flagged
split -n 1/2 --filter='true' /dev/null 2>/dev/null && fail=1
# Ensure SIGPIPEs sent by the children don't propagate back
# where they would result in a non zero exit from split.
yes | head -n200K | split -b1G --filter='head -c1 >/dev/null' || fail=1
# Ensure that endless input is ignored when all filters finish
timeout 10 yes | split --filter="head -c1 >/dev/null" -n r/1 || fail=1
timeout 10 split --filter="head -c1 >/dev/null" -n 1 /dev/zero || fail=1
Exit $fail
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