adding the rfs-pacman rootfs update/manipulation utility

scripts/rfs-pacman

@@ -0,0 +1,37 @@
+#!/bin/bash
+# rfs-pacman
+# simplified rootfs manipulation with pacman.
+##
+
+# current directory
+PWD=`pwd`
+
+# does this directory have etc/pacman.conf?
+if [ -f $PWD/etc/pacman.conf ]; then
+
+SHORT=`echo $PWD | sed 's/.*\///'`
+ARCH=`grep 'Architecture =' etc/pacman.conf | sed 's/Architecture = //'`
+echo "Calling pacman:"
+echo " -root: $PWD"
+echo " -arch: $ARCH"
+
+SEDPWD=`echo $PWD | sed 's/\\//\\\\\//g'`
+sed "s/\/etc\/pacman.d/$SEDPWD\/etc\/pacman.d/" \
+    $PWD/etc/pacman.conf > etc/pacman.conf.rfs
+
+pacman \
+  -r $PWD \
+  -b $PWD/var/lib/pacman \
+  --arch $ARCH \
+  --cachedir $PWD/var/cache/pacman/pkg \
+  --config $PWD/etc/pacman.conf.rfs \
+  --logfile $PWD/../$SHORT.pacman.log \
+  $@
+
+rm $PWD/etc/pacman.conf.rfs
+
+else
+echo "'$PWD' doesn't appear to be a rootfs."
+fi
+
+