release: add script to bump repositories

Add script that will help to bump versions for all the projects.

Fixes: #49

Signed-off-by: Jose Carlos Venegas Munoz <jose.carlos.venegas.munoz@intel.com>

release/update-repository-version.sh

@@ -0,0 +1,169 @@
+#!/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 hub_bin="${tmp_dir}/hub-bin"
+readonly organization="kata-containers"
+PUSH="false"
+GOPATH=${GOPATH:-${HOME}/go}
+
+cleanup (){
+	[ -d "${tmp_dir}" ] && rm -rf "${tmp_dir}"
+}
+
+trap cleanup EXIT
+
+die()
+{
+	msg="$*"
+	echo "ERROR: ${msg}" >&2
+	exit 1
+}
+
+info()
+{
+	msg="$*"
+	echo "INFO: ${msg}" >&2
+}
+
+build_hub() {
+	info "Get hub"
+	local hub_repo="github.com/github/hub"
+	local hub_repo_dir="${GOPATH}/src/${hub_repo}"
+	[ -d "${hub_repo_dir}" ]||  git clone --quiet --depth 1 "https://${hub_repo}.git" "${hub_repo_dir}"
+	pushd "${hub_repo_dir}" >> /dev/null
+	git checkout master
+	git pull
+	./script/build -o "${hub_bin}"
+	popd >> /dev/null
+}
+
+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() {
+	repo=$1
+	new_version=$2
+	[ -n "${repo}" ] || die "repository not provided"
+	[ -n "$new_version" ] || die "no new version"
+	remote_github="https://github.com/${organization}/${repo}.git"
+	info "Update $repo to version $new_version"
+
+	info "remote: ${remote_github}"
+
+	git clone --quiet "${remote_github}"
+
+	pushd "${repo}" >> /dev/null
+
+	# All repos we build should have a VERSION file
+	[ -f "VERSION" ] || die "VERSION file not found "
+	current_version="$(cat ./VERSION | grep -v '#')"
+
+	info "Creating PR message"
+	notes_file=notes.md
+	cat << EOT > "${notes_file}"
+# Kata Containers ${new_version}
+
+$(get_changes "$current_version")
+
+EOT
+
+	info "Updating VERSION file"
+	echo "${new_version}" > VERSION
+	branch="${new_version}-branch-bump"
+	git checkout -b "${branch}" master
+	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 -F "${notes_file}" 2>&1) || echo "$out" |  grep "A pull request already exists"
+	fi
+	popd >> /dev/null
+}
+
+usage(){
+	exit_code="$1"
+	cat <<EOT
+Usage:
+	${script_name} [options] <args>
+Args:
+	<repository-name> : Name of repository to fork and send PR from github.com/${organization}
+	<new-version>    : New version to bump the repository
+Example:
+	${script_name} 1.10
+Options
+	-h        : Show this help
+	-p        : create a PR
+EOT
+	exit "$exit_code"
+}
+
+while getopts "hp" opt
+do
+	case $opt in
+		h)	usage 0 ;;
+		p)	PUSH="true" ;;
+	esac
+done
+
+shift $(( $OPTIND - 1 ))
+
+repo=${1:-}
+new_version=${2:-}
+[ -n "${repo}" ] || (echo "ERROR: repository not provided" && usage 1)
+[ -n "$new_version" ] || (echo "ERROR: no new version" && usage 1 )
+
+pushd "$tmp_dir" >> /dev/null
+bump_repo "${repo}" "${new_version}"
+popd >> /dev/null