sync-portage: Added script to sync Portage squashfs images

sync-portage.sh

@@ -0,0 +1,55 @@
+#!/bin/sh
+
+REMOTE=${SYNC_REMOTE:-caithe.pyrocufflink.jazz::portage-squashfs/gentoo.sqxz}
+NO_EMAINT_SYNC=0
+NO_LAYMAN_SYNC=0
+NO_EIX=0
+
+while [ $# -gt 0 ]; do
+case "$1" in
+--no-eix)
+	NO_EIX=1
+	shift
+	;;
+--quiet|-q)
+	QUIET=1
+    shift
+	;;
+*)
+	if [ -z "${REMOTE}" ]; then
+		REMOTE="${arg}"
+	elif [ -z "${LOCAL}" ]; then
+		LOCAL="${arg}"
+	fi
+	shift
+	;;
+esac
+done
+
+: ${PORTDIR:=$(portageq get_repo_path ${ROOT:-/} ${REPO_NAME:-gentoo})}
+
+[ x${QUIET} = x ] && RSYNC_ARGS=-v
+rsync -a ${RSYNC_ARGS} "${REMOTE}" "${LOCAL:-${PORTDIR%/*}}" || exit $?
+
+if ! umount "${PORTDIR}"; then
+	printf 'Failed to unmount %s\n' "${PORTDIR}"
+	exit 1
+fi
+if ! mount "${PORTDIR}"; then
+	printf 'Failed to mount %s\n' "${PORTDIR}"
+	exit 1
+fi
+
+if [ ${NO_EMAINT_SYNC} -ne 1 ]; then
+	if portageq repos_config / | grep -q sync-uri; then
+		PORTAGE_QUIET=${QUIET:+0} emaint sync --auto
+	fi
+fi
+
+if [ ${NO_LAYMAN_SYNC} -ne 1 ] && [ -x "$(command -v layman)" ]; then
+	layman --sync-all ${QUIET:+--quiet}
+fi
+
+if [ ${NO_EIX} -ne 1 ] && [ -x "$(command -v eix)" ]; then
+	eix-update ${QUIET:+--quiet}
+fi