kata-containers/release/update-repository-version.sh

#!/bin/bash
#
# Copyright (c) 2018 Intel Corporation
#
# SPDX-License-Identifier: Apache-2.0
#

set -o errexit
set -o nounset
set -o pipefail

readonly script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
readonly script_name="$(basename "${BASH_SOURCE[0]}")"

readonly tmp_dir=$(mktemp -t -d pr-bump.XXXX)
readonly organization="kata-containers"
PUSH="false"
GOPATH=${GOPATH:-${HOME}/go}

source "${script_dir}/../scripts/lib.sh"

cleanup() {
	[ -d "${tmp_dir}" ] && rm -rf "${tmp_dir}"
}

trap cleanup EXIT

get_changes() {
	local current_version=$1
	[ -n "${current_version}" ] || die "current version not provided"

	changes=$(git log --oneline "${current_version}..HEAD") || die "failed to get logs"
	if [ "${changes}" == "" ]; then
		echo "Version bump no changes"
		return
	fi

	# list all PRs merged from $current_version to HEAD
	git log --merges "${current_version}..HEAD" | awk '/Merge pull/{getline; getline;print }' | while read pr; do
		echo "- ${pr}"
	done

	echo ""

	# list all commits added in this new version.
	git log --oneline "${current_version}..HEAD" --no-merges
}

generate_commit() {
	local new_version=$1
	local current_version=$2

	[ -n "$new_version" ] || die "no new version"
	[ -n "$current_version" ] || die "no current version"

	printf "release: Kata Containers %s\n\n" "${new_version}"

	get_changes "$current_version"
}

bump_repo() {
	local repo="${1:-}"
	local new_version="${2:-}"
	local target_branch="${3:-}"
	[ -n "${repo}" ] || die "repository not provided"
	[ -n "${new_version}" ] || die "no new version"
	[ -n "${target_branch}" ] || die "no target branch"
	local remote_github="https://github.com/${organization}/${repo}.git"
	info "Update $repo to version $new_version"

	info "remote: ${remote_github}"

	git clone --quiet "${remote_github}"

	pushd "${repo}" >>/dev/null

	branch="${new_version}-branch-bump"
	git fetch origin "${target_branch}"
	git checkout "origin/${target_branch}" -b "${branch}"

	# All repos we build should have a VERSION file
	[ -f "VERSION" ] || die "VERSION file not found "
	current_version="$(cat ./VERSION | grep -v '#')"

	info "Updating VERSION file"
	echo "${new_version}" >VERSION

	info "Creating PR message"
	notes_file=notes.md
	cat <<EOT >"${notes_file}"
# Kata Containers ${new_version}

$(get_changes "$current_version")

EOT
	cat "${notes_file}"

	git add -u
	info "Creating commit with new changes"
	commit_msg="$(generate_commit $new_version $current_version)"
	git commit -s -m "${commit_msg}"

	if [[ ${PUSH} == "true" ]]; then
		build_hub
		info "Forking remote"
		${hub_bin} fork --remote-name=fork
		info "Push to fork"
		${hub_bin} push fork -f "${branch}"
		info "Create PR"
		out=""
		out=$("${hub_bin}" pull-request -b "${target_branch}" -F "${notes_file}" 2>&1) || echo "$out" | grep "A pull request already exists"
	fi
	popd >>/dev/null
}

usage() {
	exit_code="$1"
	cat <<EOT
Usage:
	${script_name} [options] <args>
Args:
	<new-version>     : New version to bump the repository
	<target-branch>   : The base branch to create to PR
Example:
	${script_name} 1.10
Options
	-h        : Show this help
	-p        : create a PR
EOT
	exit "$exit_code"
}

# The tests repository is not included due to does not provide VERSION file.
repos=(
	"agent"
	"ksm-throttler"
	"osbuilder"
	"proxy"
	"runtime"
	"shim"
)


main(){
	while getopts "hp" opt; do
		case $opt in
			h) usage 0 ;;
			p) PUSH="true" ;;
		esac
	done

	shift $((OPTIND - 1))

	declare -A bump_stable
	# ksm-throttler is a project with low activity
	# Also it has low interdependency with other Kata projects.
	# Lets keep this as a single branch to simplify maintenance.
	bump_stable[ksm-throttler]=no
	# The image format is not likely to happen, unless a breaking change happens
	# If image format breaks Kata major version should change 1.X to 2.X
	# Lets keep this as a single branch to simplify maintenance.
	bump_stable[osbuilder]=no

	new_version=${1:-}
	target_branch=${2:-}
	[ -n "${new_version}" ] || { echo "ERROR: no new version" && usage 1; }
	[ -n "${target_branch}" ] || die "no target branch"
	for repo in "${repos[@]}"
	do
		echo "Bump ${repo} has stable : ${bump_stable[$repo]:-yes}"
		if [ ${bump_stable[$repo]:-yes} == "no" ] && [[ ${target_branch} =~ .*stable-.* ]] ;then
			echo "Not stable branch supported"
			continue
		fi
		pushd "$tmp_dir" >>/dev/null
		bump_repo "${repo}" "${new_version}" "${target_branch}"
		popd >>/dev/null
	done

}
main $@