#! /bin/sh
# -*- coding: utf-8 -*-
# Copyright (C) 2017 Laboratoire de Recherche et Développement de
# l'Epita (LRDE).
#
# This file is part of Spot, a model checking library.
#
# Spot 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.
#
# Spot 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/>.


# We used to loop over more directories before the source tree was
# rearranged.  So there is only one left today, but we keep the loop
# in case we want to add more in the future.

set +x

DOC=bin/man/spot-x.x

rm -f getenv.log

TOP=${srcdir-.}/../..
for dir in "$TOP/spot" "$TOP/bin"; do
  find "$dir" \(    -name "${1-*}.hh" \
                 -o -name "${1-*}.hxx" \
                 -o -name "${1-*}.cc" \) \
                 -a -not -path '*.dir/*' \
                 -a -type f -a -print
done |
xargs sed -n 's/.*getenv("\([^"]*\)").*/\1/p' |
sort | uniq |
while read prop; do
   if ! grep -q "$prop" "$TOP/$DOC"; then
     echo "* $prop" >>getenv.log
   fi
done
if test -f getenv.log; then
  echo "These environment variables are not documented in $DOC:"
  cat getenv.log
  exit 1
fi