xbps-src: added -D to generate repository binary deltas; disabled for now.

common/hooks/post-pkg/01-xdelta_repolist.sh

@@ -1,6 +1,7 @@
 # This hook generates vcdiffs for repository data.
 
 hook() {
+	[ -z "$XBPS_REPO_DELTAS" ] && return 0
 	type -P xdelta3 > /dev/null || return 0
 
 	find $XBPS_REPOSITORY -name "${XBPS_TARGET_MACHINE}-repodata.genVcdiff" | xargs -r sha256sum | \

common/hooks/pre-pkg/01-xdelta_repolist.sh

@@ -1,6 +1,7 @@
 # this hook marks files which are about to change for generating vcdiffs
 
 hook() {
+	[ -z "$XBPS_REPO_DELTAS" ] && return 0
 	type -P xdelta3 > /dev/null || return 0
 
 	# create links to preserve old versions of repodata