initial commit

.ci/sync-latest.sh

@@ -0,0 +1,47 @@
+#!/bin/sh
+# SPDX-License-Identifier: Apache-2.0
+# (c) 2024, Konstantin Demin
+set -ef
+
+[ -z "${CI_DEBUG}" ] || set -xv
+
+: "${IMAGE_NAME:?}" "${EXT_IMAGE_NAME:?}" "${LATEST_TAG:?}"
+
+. .ci/envsh.registry
+
+image_src="docker://${IMAGE_NAME}"
+image_dst="docker://${EXT_IMAGE_NAME}"
+
+oci_dir="${PWD}/oci-layers"
+image_interim="oci:${oci_dir}:$(basename "${IMAGE_NAME}"):${LATEST_TAG}"
+
+rm -rf "${oci_dir}" ; mkdir "${oci_dir}"
+
+r=0
+
+img_copy() {
+    for i in $(seq 1 3) ; do
+        if skopeo copy --all "$@" ; then
+            return 0
+        fi
+    done
+    return 1
+}
+
+while : ; do
+    img_copy "${image_src}:${LATEST_TAG}" "${image_interim}" || r=$?
+    [ "$r" = 0 ] || break
+
+    echo " -> ${image_src}:latest"
+    img_copy "${image_interim}" "${image_src}:latest" || r=$?
+    [ "$r" = 0 ] || break
+
+    echo " -> ${image_dst}:latest"
+    img_copy "${image_interim}" "${image_dst}:latest" || r=$?
+    [ "$r" = 0 ] || break
+
+    break
+done
+
+rm -rf "${oci_dir}"
+exit "$r"