1#!/bin/sh
2# In coreutils-8.12, rm,du,chmod, etc. would use too much memory
3# when processing a directory with many entries (as in > 100,000).
4
5# Copyright (C) 2011-2023 Free Software Foundation, Inc.
6
7# This program is free software: you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation, either version 3 of the License, or
10# (at your option) any later version.
11
12# This program is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15# GNU General Public License for more details.
16
17# You should have received a copy of the GNU General Public License
18# along with this program.  If not, see <https://www.gnu.org/licenses/>.
19
20. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
21print_ver_ rm du chmod
22expensive_
23
24mkdir d2 \
25  && touch d2/f || framework_failure_
26
27# Restrict memory.  Each of these coreutils-8.12 programs would fail
28# with a diagnostic like "rm: fts_read failed: Cannot allocate memory".
29vm=$(get_min_ulimit_v_ du -sh d2) \
30  || skip_ "this shell lacks ulimit support"
31
32# With many files in a single directory...
33mkdir d || framework_failure_
34seq --format="d/%06g" 200000 | xargs touch || framework_failure_
35
36# Allow 35MiB more memory as for the trivial case above.
37(ulimit -v $(($vm + 35000)) && du -sh d) || fail=1
38
39vm=$(get_min_ulimit_v_ chmod -R 700 d2) \
40  || skip_ "this shell lacks ulimit support"
41(ulimit -v $(($vm + 35000)) && chmod -R 700 d) || fail=1
42
43vm=$(get_min_ulimit_v_ rm -rf d2) \
44  || skip_ "this shell lacks ulimit support"
45(ulimit -v $(($vm + 35000)) && rm -rf d) || fail=1
46
47Exit $fail
48