#!/bin/sh
# Validate realpath operation

# Copyright (C) 2011-2012 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=.}/init.sh"; path_prepend_ ../src
print_ver_ realpath

# Setup dir, file, symlink structure

mkdir -p dir1/dir2
ln -s dir1/dir2 ldir2
touch dir1/f dir1/dir2/f

# Basic operaion
realpath -Pqz . >/dev/null || fail=1
# --relative-base and --relative-to require params
realpath --relative-base --relative-to . && fail=1
# --relative-base requires --relative-to
realpath --relative-base=dir1 . && fail=1

# -e --relative-* require directories
realpath -e --relative-to=dir1/f --relative-base=. . && fail=1
realpath -e --relative-to=dir1/  --relative-base=. . || fail=1

# Note NUL params are unconditionally rejected by canonicalize_filename_mode
realpath -m '' && fail=1

# symlink resolution
this=$(realpath .)
test $(realpath $relative ldir2/..) = "$this/dir1" || fail=1
test $(realpath -L $relative ldir2/..) = "$this" || fail=1
test $(realpath -s $relative ldir2) = "$this/ldir2" || fail=1

# relative string handling
test $(realpath -m --relative-to=prefix prefixed/1) = '../prefixed/1' || fail=1
test $(realpath -m --relative-to=prefixed prefix/1) = '../prefix/1' || fail=1
test $(realpath -m --relative-to=prefixed prefixed/1) = '1' || fail=1

Exit $fail