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#!/bin/sh
# Copyright 2015 Oliver Hahm <oliver.hahm@inria.fr>
#
# This file is subject to the terms and conditions of the GNU Lesser
# General Public License v2.1. See the file LICENSE in the top level
# directory for more details.
# If no branch but an option is given, unset BRANCH.
# Otherwise, consume this parameter.
BRANCH="${1}"
if echo "${BRANCH}" | grep -q '^-'; then
if [ $(git rev-parse --abbrev-ref HEAD) != "master" ]; then
BRANCH="master"
else
BRANCH=""
fi
else
if [ -n "${BRANCH}" ]; then
shift 1
fi
fi
# select files to check
if [ -z "${BRANCH}" ]; then
BRANCH=$(git rev-list HEAD | tail -n 1)
fi
git -c core.whitespace="tab-in-indent,tabwidth=4" \
diff --check $(git merge-base ${BRANCH} HEAD) -- *.[ch]
RESULT=$?
# Git regards any trailing white space except `\n` as an error so `\r` is
# checked here, too
git -c core.whitespace="trailing-space" \
diff --check $(git merge-base ${BRANCH} HEAD)
if [ $? -ne 0 ] || [ $RESULT -ne 0 ]
then
echo "ERROR: This change introduces new whitespace errors"
exit 1
else
exit 0
fi