--- /dev/null
+#!/bin/bash -e
+
+PORTFILE="packaging/macports/Portfile"
+
+VERSION=`head -n1 packaging/debian/changelog | sed 's/.*(\([^-]*\)-.*/\1/'`
+MD5=`md5sum monkeysphere_${VERSION}.orig.tar.gz | awk '{ print $1 }'`
+
+sed -i~ 's/^version.*$/version '"$VERSION"/ "$PORTFILE"
+sed -i~ 's/^checksums.*$/checksums md5 '"$MD5"/ "$PORTFILE"