fixup! feat(rootfs-to-image): support ROOTFS_EXPORT_DIR and configurable ROOTFS_COMPRESSION

Author: iav

lib/functions/image/rootfs-to-image.sh

@@ -145,16 +145,8 @@ function create_image_from_sdcard_rootfs() {
 		# Useful when the build host is the NFS server, or has the NFS export mounted,
 		# so netboot deployment is a single build step with no unpack/transport phase.
 		if [[ -n "${ROOTFS_EXPORT_DIR}" ]]; then
-			# Resolve and refuse catastrophic values (e.g. typoed "/"): rsync --delete
-			# below would then mirror the rootfs into the host/container root and drop
-			# anything not in the image.
-			declare rootfs_export_dir_resolved
-			rootfs_export_dir_resolved="$(realpath -m "${ROOTFS_EXPORT_DIR}")"
-			if [[ "${rootfs_export_dir_resolved}" == "/" ]]; then
-				exit_with_error "ROOTFS_EXPORT_DIR must not resolve to /" "${ROOTFS_EXPORT_DIR}"
-			fi
-			display_alert "Exporting rootfs tree" "${rootfs_export_dir_resolved}" "info"
-			run_host_command_logged mkdir -pv "${rootfs_export_dir_resolved}"
+			display_alert "Exporting rootfs tree" "${ROOTFS_EXPORT_DIR}" "info"
+			run_host_command_logged mkdir -pv "${ROOTFS_EXPORT_DIR}"
 			# --delete so files removed from the source rootfs don't survive in a
 			# reused export tree (otherwise the NFS root silently drifts from the image).
 			# --delete-excluded additionally purges receiver-side files that match our
@@ -167,7 +159,7 @@ function create_image_from_sdcard_rootfs() {
 				--exclude="/tmp/*" \
 				--exclude="/sys/*" \
 				$exclude_home \
-				--info=progress0,stats1 "$SDCARD/" "${rootfs_export_dir_resolved}/"
+				--info=progress0,stats1 "$SDCARD/" "${ROOTFS_EXPORT_DIR}/"
 		fi
 
 		call_extension_method "post_create_rootfs_archive" <<- 'POST_CREATE_ROOTFS_ARCHIVE'