#!/bin/sh
# Test "ln --relative".

# Copyright (C) 2012-2013 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/>.

source "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
print_ver_ ln

mkdir -p usr/bin || framework_failure_
mkdir -p usr/lib/foo || framework_failure_
touch usr/lib/foo/foo || framework_failure_

ln -sr usr/lib/foo/foo usr/bin/foo
test $[readlink usr/bin/foo] = '../lib/foo/foo' || setglobal fail = '1'

ln -sr usr/bin/foo usr/lib/foo/link-to-foo
test $[readlink usr/lib/foo/link-to-foo] = 'foo' || setglobal fail = '1'

# Correctly update an existing link, which was broken in <= 8.21
ln -s dir1/dir2/f existing_link
ln -srf here existing_link
test $[readlink existing_link] = 'here' || setglobal fail = '1'

# Demonstrate resolved symlinks used to generate relative links
# so here, 'web/latest' will not be linked to the intermediate 'latest' link.
# You'd probably want to use realpath(1) in conjunction
# with ln(1) without --relative to give greater control.
ln -s release1 alpha
ln -s release2 beta
ln -s beta latest
mkdir web
ln -sr latest web/latest
test $[readlink web/latest] = '../release2' || setglobal fail = '1'

Exit $fail