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#! /bin/sh
#
# Calculated provides substvars for haskell library packages.
#
# Copyright (C) 2006-2007 Arjan Oosting <arjan@debian.org>
# Copyright (C) 2009 Joachim Breitner <nomeata@debian.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of either:
#
# 1) The terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 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, write to the Free Software Foundation, Inc.,
#    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# 2) BSD 3-clause license.
#
#    All rights reserved.
#
#    Redistribution and use in source and binary forms, with or without
#    modification, are permitted provided that the following conditions are
#    met:
#
#      * Redistributions of source code must retain the above copyright
#        notice, this list of conditions and the following disclaimer.
#
#      * Redistributions in binary form must reproduce the above
#        copyright notice, this list of conditions and the following
#        disclaimer in the documentation and/or other materials provided
#        with the distribution.
#
#      * The names of contributors may not be used to endorse or promote
#        products derived from this software without specific prior
#        written permission.
#
#    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
#    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
#    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
#    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
#    OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
#    LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
#    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
#    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
#    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
#    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

set -e

if test -e debian/Dh_Haskell.sh
then
	. debian/Dh_Haskell.sh
else
	. /usr/share/haskell-devscripts/Dh_Haskell.sh
fi

for pkg in `dh_listpackages $args`; do
    sfile=debian/$pkg.substvars
    touch $sfile

    case "$pkg" in
	libghc-*-dev|libghc-*-prof|ghc|ghc-prof)
	    if [ -z "$files" ] ; then
		cfiles=`find_config_for_ghc $pkg`
	    else
		cfiles="$files"
	    fi
	    if [ -z "$cfiles" ] ; then
	      echo "No installed package description files can not be found" >&2
	      exit 1
	    fi
	    case "$pkg" in
		libghc-*-dev|ghc)
	            grep -v \
                        -e ^haskell:Provides \
                        $sfile > $sfile.tmp || true
	            echo "haskell:Provides=`provides_for_ghc $cfiles`" >> $sfile.tmp
		    ;;
		libghc-*-prof|ghc-prof)
	            grep -v \
                        -e ^haskell:Provides \
                        $sfile > $sfile.tmp || true
	            echo "haskell:Provides=`provides_for_ghc_prof $cfiles`" >> $sfile.tmp
		    ;;
	    esac
	    mv $sfile.tmp $sfile
	    ;;
	*)
	    ;;
    esac
done