1#!/bin/sh 2# Test "ln --relative". 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_ ln 21 22mkdir -p usr/bin || framework_failure_ 23mkdir -p usr/lib/foo || framework_failure_ 24touch usr/lib/foo/foo || framework_failure_ 25 26ln -sr usr/lib/foo/foo usr/bin/foo 27test $(readlink usr/bin/foo) = '../lib/foo/foo' || fail=1 28 29ln -sr usr/bin/foo usr/lib/foo/link-to-foo 30test $(readlink usr/lib/foo/link-to-foo) = 'foo' || fail=1 31 32# Correctly update an existing link, which was broken in <= 8.21 33ln -s dir1/dir2/f existing_link 34ln -srf here existing_link 35test $(readlink existing_link) = 'here' || fail=1 36 37# Demonstrate resolved symlinks used to generate relative links 38# so here, 'web/latest' will not be linked to the intermediate 'latest' link. 39# You'd probably want to use realpath(1) in conjunction 40# with ln(1) without --relative to give greater control. 41ln -s release1 alpha 42ln -s release2 beta 43ln -s beta latest 44mkdir web 45ln -sr latest web/latest 46test $(readlink web/latest) = '../release2' || fail=1 47 48# Expect this to fail with exit status 1, or to succeed quietly (freebsd). 49# Prior to coreutils-8.23, it would segfault. 50ln -sr '' F 51case $? in [01]) ;; *) fail=1;; esac 52 53Exit $fail 54