92 lines
2.7 KiB
Bash
Executable file
92 lines
2.7 KiB
Bash
Executable file
#!/bin/sh
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# Exercise the fix for https://bugs.gnu.org/8419
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# Copyright (C) 2011-2025 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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print_ver_ cp
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same_inode()
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{
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local u v
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u=$(stat --format %i "$1") &&
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v=$(stat --format %i "$2") && test "$u" = "$v"
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}
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create_source_tree()
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{
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rm -Rf s
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mkdir s || framework_failure_
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# a missing link in dest will be created
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touch s/f || framework_failure_
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ln s/f s/linkm || framework_failure_
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# an existing link in dest will be maintained
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ln s/f s/linke || framework_failure_
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# a separate older file in dest will be overwritten
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ln s/f s/fileo || framework_failure_
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# a separate newer file in dest will be overwritten!
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ln s/f s/fileu || framework_failure_
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}
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create_target_tree()
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{
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f=$1 # which of f or linkm to create in t/
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rm -Rf t
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mkdir -p t/s/ || framework_failure_
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# a missing link in dest must be created
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touch t/s/$f || framework_failure_
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# an existing link must be maintained
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ln t/s/$f t/s/linke || framework_failure_
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# a separate older file in dest will be overwritten
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touch -d '-1 hour' t/s/fileo || framework_failure_
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# a separate newer file in dest will be overwritten!
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touch -d '+1 hour' t/s/fileu || framework_failure_
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}
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# Note we repeat this, creating either one of
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# two hard linked files from source in the dest, so as to
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# test both paths in $(cp) for creating the hard links.
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# The path taken by cp is dependent on which cp encounters
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# first in the source, which is non deterministic currently
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# (I'm guessing that results are sorted by inode and
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# because they're the same here, and due to the sort
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# being unstable, either can be processed first).
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create_source_tree
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for f in f linkm; do
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create_target_tree $f
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# Copy all the hard links across. With cp from coreutils-8.12
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# and prior, it would sometimes mistakenly copy rather than link.
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cp -au s t || fail=1
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same_inode t/s/f t/s/linkm || fail=1
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same_inode t/s/f t/s/linke || fail=1
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same_inode t/s/f t/s/fileo || fail=1
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same_inode t/s/f t/s/fileu || fail=1
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done
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Exit $fail
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