build framework - MANAGE_ACNG, allow to specify your own mirror/URL

Author: tabrisnet

lib/functions/rootfs/rootfs-create.sh

@@ -53,6 +53,15 @@ function create_new_rootfs_cache_via_debootstrap() {
 	if [[ "${MANAGE_ACNG}" == "yes" ]]; then
 		local debootstrap_apt_mirror="http://localhost:3142/${APT_MIRROR}"
 		acng_check_status_or_restart
+	elif [[ "${MANAGE_ACNG}" == "no" ]]; then
+		: # do nothing
+	else
+		if [[ ! "${MANAGE_ACNG}" =~ ^https?:// ]]; then
+			exit_with_error "MANAGE_ACNG must be yes/no OR be a full URL with http/https" "${MANAGE_ACNG}"
+		else
+			# FIXME: although this works with mmdebstrap, there's a more idiomatic way with `--aptopt`
+			local debootstrap_apt_mirror="${MANAGE_ACNG}/${APT_MIRROR}"
+		fi
 	fi
 
 	# @TODO: one day: https://gitlab.mister-muffin.de/josch/mmdebstrap/src/branch/main/mmdebstrap