#!/bin/sh
# tests for canonicalize mode (readlink -f).

# Copyright (C) 2004, 2006, 2007 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/>.

if test "$VERBOSE" = yes; then
  set -x
  readlink --version
fi

pwd=`pwd`
t0=`echo "$0" |sed 's,.*/,,'`.tmp; tmp=$t0/$$
trap 'status=$?; cd "$pwd" && chmod -R u+rwx $t0 && rm -rf $t0 && exit $status' 0
trap 'status=$?; (exit $status); exit $status' 1 2 13 15

fail=1
while :; do
  bindir=`cd ../../src && pwd`|| break
  my_pwd=`"$bindir/pwd"` || break

  mkdir -p $tmp || break
  cd $tmp || break

  mkdir subdir removed || break
  touch regfile || break

  ln -s regfile link1 || break
  ln -s subdir link2 || break
  ln -s missing link3 || break
  ln -s subdir/missing link4 || break

  fail=0
  break
done

if test $fail = 1; then
  echo "$0: failure in testing framework" 1>&2
  (exit 1); exit 1
fi

fail=1
while :; do
  cd "$pwd/$tmp/removed" || break

  # Skip this test if the system doesn't let you remove the working directory.
  if rmdir ../removed 2>/dev/null; then
    v=`readlink -f .` && break
    test -z "$v" || break
  fi

  cd "$pwd/$tmp" || break

  fail=0
  break
done

if test $fail = 1; then
  (exit $fail); exit $fail
fi

for p in "" "$pwd/$tmp/"; do
  fail=1

  v=`readlink -f "${p}regfile"` || break
  test "$v" = "$my_pwd/$tmp/regfile" || break

  v=`readlink -f "${p}./regfile/"` && break
  test -z "$v" || break

  v=`readlink -f "${p}regfile/more"` && break
  test -z "$v" || break

  v=`readlink -f "${p}./regfile/more/"` && break
  test -z "$v" || break

  v=`readlink -f "${p}subdir"` || break
  test "$v" = "$my_pwd/$tmp/subdir" || break

  v=`readlink -f "${p}./subdir/"` || break
  test "$v" = "$my_pwd/$tmp/subdir" || break

  v=`readlink -f "${p}subdir/more"` || break
  test "$v" = "$my_pwd/$tmp/subdir/more" || break

  v=`readlink -f "${p}./subdir/more/"` && break
  test -z "$v" || break

  v=`readlink -f "${p}missing"` || break
  test "$v" = "$my_pwd/$tmp/missing" || break

  v=`readlink -f "${p}./missing/"` && break
  test -z "$v" || break

  v=`readlink -f "${p}missing/more"` && break
  test -z "$v" || break

  v=`readlink -f "${p}./missing/more/"` && break
  test -z "$v" || break

  v=`readlink -f "${p}link1"` || break
  test "$v" = "$my_pwd/$tmp/regfile" || break

  v=`readlink -f "${p}./link1/"` && break
  test -z "$v" || break

  v=`readlink -f "${p}link1/more"` && break
  test -z "$v" || break

  v=`readlink -f "${p}./link1/more/"` && break
  test -z "$v" || break

  v=`readlink -f "${p}link2"` || break
  test "$v" = "$my_pwd/$tmp/subdir" || break

  v=`readlink -f "${p}./link2/"` || break
  test "$v" = "$my_pwd/$tmp/subdir" || break

  v=`readlink -f "${p}link2/more"` || break
  test "$v" = "$my_pwd/$tmp/subdir/more" || break

  v=`readlink -f "${p}./link2/more/"` && break
  test -z "$v" || break

  v=`readlink -f "${p}link2/more/more2"` && break
  test -z "$v" || break

  v=`readlink -f "${p}./link2/more/more2/"` && break
  test -z "$v" || break

  v=`readlink -f "${p}link3"` || break
  test "$v" = "$my_pwd/$tmp/missing" || break

  v=`readlink -f "${p}./link3/"` && break
  test -z "$v" || break

  v=`readlink -f "${p}link3/more"` && break
  test -z "$v" || break

  v=`readlink -f "${p}./link3/more/"` && break
  test -z "$v" || break

  v=`readlink -f "${p}link4"` || break
  test "$v" = "$my_pwd/$tmp/subdir/missing" || break

  v=`readlink -f "${p}./link4/"` && break
  test -z "$v" || break

  v=`readlink -f "${p}link4/more"` && break
  test -z "$v" || break

  fail=0
done

(exit $fail); exit $fail