# Copyright (C) 2012 The Meme Factory, Inc.  http://www.karlpinc.com/
# Copyright (C) 2010, 2011, Karl O. Pinc  <kop@karlpinc.com>
#
#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
#  You should have received a copy of the GNU Affero General Public License
#  along with this program.  If not, see <https://www.gnu.org/licenses/>.
#
# Wrapper around xmllint to deliver an exit code on entity error.
#
# Karl O. Pinc <kop@karlpinc.com>
#
# Remarks:
#  Invoke from make with 'sh <./xmllint-wrapper ./xmllint-wrapper'.
# This allows the passing of arguments, where Posix source (.) does
# not, and keeps us from having to mark this script executable.
#
# Bugs:
# This is a kludge to deal with oddity in xmllint.
#
# Normally xmllint does not exit with an error when --postvalid is used
# and an entity does not exist, but it does send text to stderr.
# Go figure.

tfile=/tmp/xmllint-wrapper.$$

xmllint --postvalid --noout --xinclude --nonet --noent "$@" 2> $tfile
status=$(echo $?)

[ -s $tfile ] \
  && cat $tfile >&2 \
  && rm -f $tfile \
  && [ $status = "0" ] \
  && exit 1

rm -f $tfile
exit $status