tools: Add support for caching Cloud Hypervisor artefacts

Let's add support for caching Cloud Hypervisor artefacts that are
generated using the kata-deploy local-build scripts.

Right now those are not used, but we'll switch to using them very soon
as part of upcoming changes of how we build the components we test in
our CI.

Fixes: #6480

Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>

tools/packaging/static-build/cache_components_main.sh

@@ -0,0 +1,84 @@
+#!/bin/bash
+# Copyright (c) 2022 Intel Corporation
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+source "${script_dir}/../scripts/lib.sh"
+
+cache_clh_artifacts() {
+	local clh_tarball_name="kata-static-cloud-hypervisor.tar.xz"
+	local current_clh_version="$(get_from_kata_deps "assets.hypervisor.cloud_hypervisor.version")"
+	create_cache_asset "${clh_tarball_name}" "${current_clh_version}" ""
+}
+
+create_cache_asset() {
+	local component_name="${1}"
+	local component_version="${2}"
+	local component_image="${3}"
+
+	sudo cp "${repo_root_dir}/tools/packaging/kata-deploy/local-build/build/${component_name}" .
+	sudo chown -R "${USER}:${USER}" .
+	sha256sum "${component_name}" > "sha256sum-${component_name}"
+	cat "sha256sum-${component_name}"
+	echo "${component_version}" > "latest"
+	cat "latest"
+	echo "${component_image}" > "latest_image"
+	cat "latest_image"
+}
+
+help() {
+echo "$(cat << EOF
+Usage: $0 "[options]"
+	Description:
+	Builds the cache of several kata components.
+	Options:
+		-c	Cloud hypervisor cache
+		-h	Shows help
+EOF
+)"
+}
+
+main() {
+	local cloud_hypervisor_component="${cloud_hypervisor_component:-}"
+	local OPTIND
+	while getopts ":ch:" opt
+	do
+		case "$opt" in
+		c)
+			cloud_hypervisor_component="1"
+			;;
+		h)
+			help
+			exit 0;
+			;;
+		:)
+			echo "Missing argument for -$OPTARG";
+			help
+			exit 1;
+			;;
+		esac
+	done
+	shift $((OPTIND-1))
+
+	[[ -z "${cloud_hypervisor_component}" ]] && \
+		help && die "Must choose at least one option"
+
+	mkdir -p "${WORKSPACE}/artifacts"
+	pushd "${WORKSPACE}/artifacts"
+	echo "Artifacts:"
+
+	[ "${cloud_hypervisor_component}" == "1" ] && cache_clh_artifacts
+
+	ls -la "${WORKSPACE}/artifacts/"
+	popd
+	sync
+}
+
+main "$@"