#!/bin/bash
#
# Script to create feature/foo branch of a repository
#
# All Rights Reserved.
#
#    Licensed 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

if [[ $# -lt 3 ]]; then
    echo "Usage: $0 branch-name projectname SHA"
    echo
    echo "Example: $0 keystoneauth_integration python-keystoneclient 4776495adfadbf5240a9e0f169990ce139af9549"
    exit 2
fi

TOOLSDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
source $TOOLSDIR/functions

FEATURE=$1
PROJECT=$2
VERSION=$3
LPROJECT="$PROJECT"

REPO=$(lp_project_to_repo $PROJECT)

NEW_BRANCH="feature/$(echo $FEATURE | sed -e 's|^feature/||')"

setup_temp_space feature-branch-$PROJECT
clone_repo openstack/$REPO
cd $REPO
LANG=C git review -s

if $(git branch -r | grep $NEW_BRANCH > /dev/null); then
    echo "A $NEW_BRANCH branch already exists !"
    cd ../..
    rm -rf $MYTMPDIR
    exit 1
fi

title "Creating $NEW_BRANCH from $VERSION"
git branch $NEW_BRANCH $VERSION
REALSHA=`git show-ref -s $NEW_BRANCH`
git push gerrit $NEW_BRANCH

update_gitreview "$NEW_BRANCH"