1#!/bin/sh 2# Exercise split's new --filter option. 3 4# Copyright (C) 2011-2023 Free Software Foundation, Inc. 5 6# This program is free software: you can redistribute it and/or modify 7# it under the terms of the GNU General Public License as published by 8# the Free Software Foundation, either version 3 of the License, or 9# (at your option) any later version. 10 11# This program is distributed in the hope that it will be useful, 12# but WITHOUT ANY WARRANTY; without even the implied warranty of 13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14# GNU General Public License for more details. 15 16# You should have received a copy of the GNU General Public License 17# along with this program. If not, see <https://www.gnu.org/licenses/>. 18 19. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src 20print_ver_ split 21require_sparse_support_ # for 'truncate --size=$LARGE' 22xz --version || skip_ 'xz required' 23 24for total_n_lines in 5 3000 20000; do 25 seq $total_n_lines > in || framework_failure_ 26 for i in 2 51 598; do 27 28 # Don't create too many files/processes. 29 # Starting 10k (or even "only" 1500) processes would take a long time, 30 # and would provide little added benefit. 31 case $i:$total_n_lines in 2:5);; *) continue;; esac 32 33 split -l$i --filter='xz -1 > $FILE.xz' in out- || fail=1 34 xz -dc out-* > out || fail=1 35 compare in out || fail=1 36 rm -f out* 37 done 38 rm -f in 39done 40 41# Show how --elide-empty-files works with --filter: 42# split does not run the command (and effectively elides the file) 43# only when the output to that command would have been empty. 44split -e -n 10 --filter='xz > $FILE.xz' /dev/null || fail=1 45returns_ 1 stat x?? 2>/dev/null || fail=1 46 47# Ensure this invalid combination is flagged 48returns_ 1 split -n 1/2 --filter='true' /dev/null 2>&1 || fail=1 49 50# Ensure SIGPIPEs sent by the children don't propagate back 51# where they would result in a non zero exit from split. 52yes | head -n200K | split -b1G --filter='head -c1 >/dev/null' || fail=1 53 54# Ensure that "endless" input is ignored when all filters finish 55for mode in '' 'r/'; do 56 in_file='-' 57 in_cmd='yes' 58 if test "$mode" = ''; then 59 in_file='zero.in' 60 in_cmd='true' 61 truncate -s10T "$FILE" || continue 62 fi 63 for N in 1 2; do 64 rm -f x??.n || framework_failure_ 65 $in_cmd | 66 timeout 10 split --filter='head -c1 >$FILE.n' -n $mode$N $in_file || fail=1 67 # Also ensure we get appropriate output from each filter 68 seq 1 $N | tr '0-9' 1 > stat.exp 69 stat -c%s x??.n > stat.out || framework_failure_ 70 compare stat.exp stat.out || fail=1 71 done 72done 73 74# Ensure that "endless" input _is_ processed for unbounded number of filters 75for buf in 1000 1000000; do 76 returns_ 124 timeout .5 sh -c \ 77 "yes | split --filter='head -c1 >/dev/null' -b $buf" || fail=1 78done 79 80Exit $fail 81