1#!/bin/sh 2# Ensure that mv works with a few symlink-onto-hard-link cases. 3 4# Copyright (C) 2012-2023 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_ mv 21 22touch f || framework_failure_ 23ln f h || framework_failure_ 24ln -s f s || framework_failure_ 25 26# Given two links f and h to some important content, and a symlink s to f, 27# "mv s f" must fail because it might then be hard to find the link, h. 28# "mv s l" may succeed because then, s (now "l") still points to f. 29# Of course, if the symlink were being moved into a different destination 30# directory, things would be very different, and, I suspect, implausible. 31 32echo "mv: 's' and 'f' are the same file" > exp || framework_failure_ 33mv s f > out 2> err && fail=1 34compare /dev/null out || fail=1 35compare exp err || fail=1 36 37mv s l > out 2> err || fail=1 38compare /dev/null out || fail=1 39compare /dev/null err || fail=1 40 41Exit $fail 42