saving uncommitted changes in /etc prior to emerge run

paludis/hooks/sync_all_post/sync_dtd.bash

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+source "${PALUDIS_EBUILD_DIR}/echo_functions.bash"
+
+PORTDIR="/usr/portage"
+
+[[ -z ${PORTDIR} || "$(dirname ${PORTDIR})" == "/" ]] && die "PORTDIR empty or pointing to root!"
+
+
+die() {
+	eerror "${1}"
+	exit 1
+}
+
+cd "${PORTDIR}"/metadata || die "could not cd into '${PORTDIR}/metadata'!"
+if [[ -e dtd ]] ; then
+	einfo "dtd dir already exists, updating..."
+	cd glsa || die "could not cd into 'dtd'!"
+	git pull --ff || die "could not pull updates!"
+else
+	einfo "dtd directory does not exist, cloning..."
+	git clone https://anongit.gentoo.org/git/data/dtd.git || die "could not clone repository!"
+fi
+