#!/bin/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.
#
set -e
set -u

if [ "$#" -ne 1 ]; then
  echo "Usage: $0 <local-release-branch>"
  exit
fi

local_release_branch=$1

echo "Fetch the latest commits"
git fetch --all --prune
echo "Checkout the master branch"
git checkout master
echo "Apply the latest commits on the master branch"
git rebase apache/master
echo "Apply the unpushed commits on the local release branch"
git rebase ${local_release_branch}
echo "Push the rebased branch to master"
git push --force apache master

echo "Success! The rebased commits are available here:"
echo "  https://github.com/apache/arrow/commits/master"