tools/releasing/create_release_branch.sh

#!/usr/bin/env bash

#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

##
## Variables with defaults (if not overwritten by environment)
##
RELEASE_CANDIDATE=${RELEASE_CANDIDATE:-none}
MVN=${MVN:-mvn}

# fail immediately
set -o errexit
set -o nounset
# print command before executing
set -o xtrace

CURR_DIR=`pwd`
if [[ `basename ${CURR_DIR}` != "tools" ]] ; then
  echo "You have to call the script from the tools/ dir"
  exit 1
fi

###########################

if [ -z "${RELEASE_VERSION}" ]; then
	echo "RELEASE_VERSION is unset"
	exit 1
fi

cd ..

target_branch=release-${RELEASE_VERSION}
if [ "${RELEASE_CANDIDATE}" != "none" ]; then
  target_branch=${target_branch}-rc${RELEASE_CANDIDATE}
fi

git checkout -b ${target_branch}

RELEASE_HASH=`git rev-parse HEAD`
echo "Echo created release hash $RELEASE_HASH"

echo "Done. Don't forget to create the release tag on GitHub and push the changes."