Draft: Add script to build OCI images from snapshots

scripts/build/build-oci-images.sh

@@ -0,0 +1,61 @@
+#!/bin/sh
+
+SSL_CA_CERT_FILE=/usr/local/share/certs/ca-root-nss.crt
+
+set -ex
+
+if [ -z "${GIT_COMMIT}" ]; then
+	echo "No git commit id specified"
+	exit 1
+fi
+
+ARTIFACT_SERVER=${ARTIFACT_SERVER:-artifact.ci.freebsd.org}
+ARTIFACT_SUBDIR=${FBSD_BRANCH}/${GIT_COMMIT}/${TARGET}/${TARGET_ARCH}
+
+sudo chflags -R noschg work
+sudo rm -fr work
+mkdir -p work
+cd work
+
+# Initialize empty OCI image
+umoci init --layout freebsd
+umoci new --image freebsd:${GIT_COMMIT}
+
+# Temporarily set OS to Linux to workaround a bug: https://github.com/opencontainers/umoci/issues/364
+umoci config --image freebsd:${GIT_COMMIT} --os linux
+
+# Extract bundle
+sudo umoci unpack --image freebsd:${GIT_COMMIT} oci-bundle
+
+DIST_PACKAGES="base"
+if [ "${WITH_DOC}" = 1 ]; then
+	DIST_PACKAGES="${DIST_PACKAGES} doc"
+fi
+if [ "${WITH_TESTS}" = 1 ]; then
+	DIST_PACKAGES="${DIST_PACKAGES} tests"
+fi
+if [ "${WITH_DEBUG}" = 1 ]; then
+	DIST_PACKAGES="${DIST_PACKAGES} base-dbg"
+fi
+if [ "${WITH_LIB32}" = 1 ]; then
+	DIST_PACKAGES="${DIST_PACKAGES} lib32"
+	if [ "${WITH_DEBUG}" = 1 ]; then
+		DIST_PACKAGES="${DIST_PACKAGES} lib32-dbg"
+	fi
+fi
+
+for f in ${DIST_PACKAGES}
+do
+	fetch https://${ARTIFACT_SERVER}/snapshot/${ARTIFACT_SUBDIR}/${f}.txz
+	sudo tar Jxf ${f}.txz -C oci-bundle/rootfs
+done
+
+sudo umoci repack --image freebsd:${GIT_COMMIT} oci-bundle
+sudo umoci config --image freebsd:${GIT_COMMIT} --os freebsd --author="FreeBSD Project" --architecture ${TARGET_ARCH}
+
+sudo skopeo inspect oci:freebsd
+
+cd ${WORKSPACE}
+rm -fr artifact
+mkdir -p artifact/${ARTIFACT_SUBDIR}
+mv work/freebsd artifact/${ARTIFACT_SUBDIR}