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#!/bin/bash
#
# Copyright (c) 2010, Benjamin C. Meyer <ben@meyerhome.net>
# Copyright (C) 2011 by Andrea Diamantini <adjam7 at gmail dot com>
#
#
# 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 2 of
# the License or (at your option) version 3 or any later version
# accepted by the membership of KDE e.V. (or its successor approved
# by the membership of KDE e.V.), which shall act as a proxy
# defined in Section 14 of version 3 of the license.
#
# 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/>.
#
#######################################################################

function test_file {
    file="${1}"
    echo ""
    echo "------- Checking style on .cpp files"
    tempfoo=`basename $0`
    newfile=`mktemp /tmp/${tempfoo}.XXXXXX` || exit 1
    astyle \
    --indent=spaces=4 \
    --style=allman \
    --indent-labels \
    --pad-oper \
    --pad-header \
    --unpad-paren \
    --keep-one-line-statements \
    --convert-tabs \
    --indent-preprocessor < $file > $newfile 2>> /dev/null
    diff "${file}" "${newfile}"
    r=$?
    rm "${newfile}"
    if [ $r != 0 ] ; then
        echo "Code style error in $file, please fix before commiting."
        exit 1
    fi
    echo "------- Style check PASSED"
    echo ""
}

case "${1}" in
    --about )
        echo "Check that the code follows a consistent code style."
        ;;
    * )
        for file in `git diff-index --cached --name-only HEAD | grep .cpp` ; do
            test_file "${file}"
        done
        ;;
esac