1#!/bin/sh
2# ensure that cp --preserve=link --link doesn't waste heap
3
4# Copyright (C) 2008-2023 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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
20print_ver_ cp
21expensive_
22
23# Determine basic amount of memory needed for 'cp -al'.
24touch f || framework_failure_
25vm=$(get_min_ulimit_v_ cp -al f f2) \
26  || skip_ "this shell lacks ulimit support"
27rm f f2 || framework_failure_
28
29a=$(printf %031d 0)
30b=$(printf %031d 1)
31(mkdir $a \
32   && cd $a \
33   && seq --format=%031g 10000 |xargs touch \
34   && seq --format=d%030g 10000 |xargs mkdir ) || framework_failure_
35cp -al $a $b || framework_failure_
36mkdir e || framework_failure_
37mv $a $b e || framework_failure_
38
39# Allow cp(1) to use 4MiB more virtual memory than for the above trivial case.
40(ulimit -v $(($vm+4000)) && cp -al e f) || fail=1
41
42Exit $fail
43