obs: version: add gen_versions_txt script.

Based ina a branch will query the current
kata version and needed hashes.

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

obs-packaging/gen_versions_txt.sh

@@ -0,0 +1,104 @@
+#!/bin/bash
+# Copyright (c) 2018 Intel Corporation
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+[ -z "${DEBUG}" ] || set -x
+set -o errexit
+set -o nounset
+set -o pipefail
+
+readonly script_name="$(basename "${BASH_SOURCE[0]}")"
+readonly script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+project="kata-containers"
+
+source "${script_dir}/../scripts/lib.sh"
+
+get_kata_hash_from_tag(){
+	repo=$1
+	git ls-remote --tags "https://github.com/${project}/${repo}.git" | grep "refs/tags/${kata_version}^{}" | awk '{print $1}'
+}
+
+gen_version_file(){
+	local branch="$1"
+	[ -n "${branch}" ] || exit 1
+
+	local kata_version=$(curl --silent  -L "https://raw.githubusercontent.com/${project}/runtime/${branch}/VERSION")
+	kata_runtime_hash=$(get_kata_hash_from_tag "runtime" "${kata_version}")
+	kata_proxy_hash=$(get_kata_hash_from_tag "proxy" "${kata_version}")
+	kata_shim_hash=$(get_kata_hash_from_tag "shim" "${kata_version}")
+	kata_agent_hash=$(get_kata_hash_from_tag "agent" "${kata_version}")
+	kata_ksm_throttler_hash=$(get_kata_hash_from_tag "ksm-throttler" "${kata_version}")
+
+
+	qemu_lite_branch=$(get_from_kata_deps "assets.hypervisor.qemu-lite.branch" "${kata_version}")
+	qemu_lite_version=$(curl -s -L "https://raw.githubusercontent.com/${project}/qemu/${qemu_lite_branch}/VERSION")
+	qemu_lite_hash=$(git ls-remote https://github.com/${project}/qemu.git | grep "refs/heads/${qemu_lite_branch}" | awk '{print $1}')
+
+	qemu_vanilla_branch=$(get_from_kata_deps "assets.hypervisor.qemu.version" "${kata_version}")
+	qemu_vanilla_version=$(curl -s -L "https://raw.githubusercontent.com/qemu/qemu/${qemu_vanilla_branch}/VERSION")
+	qemu_vanilla_hash=$(git ls-remote https://github.com/qemu/qemu.git | grep "refs/heads/${qemu_vanilla_branch}" | awk '{print $1}')
+
+	kernel_version=$(get_from_kata_deps "assets.kernel.version" "${kata_version}")
+	#Remove extra 'v'
+	kernel_version=${kernel_version#v}
+
+	golang_version=$(get_from_kata_deps "languages.golang.meta.newest-version" "${kata_version}")
+	golang_version="1.10.2"
+	golang_x84_64_sha256=$(curl -s -L "https://storage.googleapis.com/golang/go${golang_version}.linux-amd64.tar.gz.sha256")
+
+cat > versions.txt  << EOT
+
+# This is a generated file from ${script_name}
+
+kata_runtime_version=${kata_version}
+kata_runtime_hash=${kata_runtime_hash}
+
+kata_proxy_version=${kata_version}
+kata_proxy_hash=${kata_proxy_hash}
+
+kata_shim_version=${kata_version}
+kata_shim_hash=${kata_shim_hash}
+
+kata_agent_version=${kata_version}
+kata_agent_hash=${kata_agent_hash}
+
+kata_ksm_throttler_version=${kata_version}
+kata_ksm_throttler_hash=${kata_ksm_throttler_hash}
+
+# Dependencies
+kata_osbuilder_version=${kata_version}
+
+qemu_lite_version=${qemu_lite_version}
+qemu_lite_hash=${qemu_lite_hash}
+
+qemu_vanilla_version=${qemu_vanilla_version}
+qemu_vanilla_hash=${qemu_lite_hash}
+
+kernel_version=${kernel_version}
+
+# Golang
+go_version=${golang_version}
+go_checksum=${golang_x84_64_sha256}
+EOT
+}
+
+usage(){
+	msg="${1:-}"
+	exit_code=$"${2:-0}"
+cat << EOT
+${msg}
+Usage:
+${script_name} <kata-branch>
+EOT
+	exit "${exit_code}"
+}
+
+main(){
+	local branch="${1:-}"
+	[ -n "${branch}" ] || usage "missing branch" "1"
+	gen_version_file "${branch}"
+}
+
+main $@