update

#!/bin/bash

# Copyright (C) 2016-Present Pivotal Software, Inc. All rights reserved.
# This program and the accompanying materials are made available under the terms of the 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

submodule_warning='Uncommitted submodules changes will be clobbered'
unversioned_change_warning='Unversioned changes will be clobbered'

function has_upstream() {
  git rev-parse @{u} > /dev/null 2>&1
}

if [ "$1" == "--help" ]; then
  echo "USAGE: $0"
  echo "    This command takes no arguments."
  echo ""
  echo "This script does a git submodule update on all submodules"
  echo ""
  echo "NOTE: $submodule_warning"
  exit 0
fi

echo ""
echo "===> $submodule_warning <==="
echo ""

echo ""
echo "===> $unversioned_change_warning <==="
echo ""

set -x # show the commands we are running

has_upstream && git pull

# Update submodule pointers; Clean out any submodule changes
git submodule sync
git submodule foreach --recursive 'git submodule sync; git clean -d --force --force'

# Update submodule content, checkout if necessary
git submodule update --init --recursive --force

git clean -ffd

set +x # stop showing commands

echo "Service-backup has been updated"