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coreutils/tests/mv/atomic2.sh
Stefano Lattarini 21b5147fd8 build: don't use recursive make for tests/ subdirectory
* Makefile.am (SUBDIRS): Remove 'tests'.
(include): The '$(top_srcdir)/tests/local.mk' file.
(check-root): Remove this convenience target, it's no longer needed
now that the "real" check-root target once in 'tests/Makefile' will
land in the top-level makefile.
* configure.ac (AC_CONFIG_FILES): Remove 'tests/Makefile'.
* tests/Makefile.am: Rename ...
* tests/local.mk: ... like this, with a lot of adjustments.
* tests/init.cfg: Move ...
* init.cfg: ... here.  This is necessary, for a limitation of the
gnulib-provided 'tests/init.sh', which unconditionally look for
'init.cfg' in the $(srcdir) directory.
* tests/*/*.sh: Adjust: expect init.sh to be in '$srcdir/tests',
not in '$srcdir', and extend $PATH with './src', not with '../src'.
* tests/Coreutils.pm: Adjust similarly.
* tests/pr/pr-tests.pl ($pfx): Likewise.
2012-09-05 08:48:29 +02:00

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#!/bin/sh
# ensure that mv doesn't first unlink a multi-hard-linked destination
# Copyright (C) 2008-2012 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_ mv
require_strace_ unlink
# Before the fix, mv would unnecessarily unlink the destination symlink:
# $ rm -f a b b2; touch a b; ln b b2; strace -e unlink /p/bin/mv a b
# unlink("b") = 0
#
# With the fix, it doesn't call unlink:
# $ rm -f a b b2; touch a b; ln b b2; strace -e unlink ./mv a b
# $
touch a b || framework_failure_
ln b b2 || framework_failure_
strace -qe unlink mv a b > out 2>&1 || fail=1
$EGREP 'unlink.*"b"' out && fail=1
# Ensure that the source, "a", is gone.
ls -dl a > /dev/null 2>&1 && fail=1
# Ensure that the destination, "b", has link count 1.
n_links=$(stat --printf=%h b) || fail=1
test "$n_links" = 1 || fail=1
Exit $fail