#!/bin/bash

# Copyright (c) 2013 The CoreOS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

SCRIPT_ROOT=$(dirname $(readlink -f "$0"))
. "${SCRIPT_ROOT}/common.sh" || exit 1

DEFINE_string master "master" "Manifest master branch to update."
DEFINE_string branch "build-${TODAYS_VERSION}" \
    "Manifest branch, tag, or other ref to get version from."
DEFINE_boolean push ${FLAGS_FALSE} "Push to public manifest repository."
DEFINE_string remote "origin" "Remote name or URL to push to."

# Parse flags
FLAGS "$@" || exit 1
eval set -- "${FLAGS_ARGV}"
switch_to_strict_mode

info "Running repo init -b ${FLAGS_master}"
repo init -b "${FLAGS_master}"

info "Updating version.txt from ${FLAGS_branch}"
cd "${GCLIENT_ROOT}/.repo/manifests"
git checkout "${FLAGS_branch}" version.txt
git add version.txt
git commit -m "bump(version): Update version from ${FLAGS_branch}"

if [[ ${FLAGS_push} -eq ${FLAGS_TRUE} ]]; then
    info "Pushing to ${FLAGS_remote} ${FLAGS_master}"
    git push "${FLAGS_remote}" "HEAD:refs/heads/${FLAGS_master}"
fi