brooklyn-scan-dangling-refs.sh

for l in locations/* ; do	
  ENT=`xmlstarlet sel -t -v "location/locationConfig/callerContext/entityProxy" $l`
  if [ ! -z "$ENT" ] ; then
    if [ -z `find . -name $ENT` ] ; then
      # it's a leak
      LOC=`basename $l`
      echo "Detected location $LOC has reference to deleted entity $ENT - removing it"
      rm $l
      FILES=`grep -l $LOC locations/*`
      if [ ! -z "$FILES" ] ; then
        echo "  also referenced from $FILES - removing the references there"
        for p in $FILES ; do
          # finds "children" references
          xmlstarlet ed -O -d "location/children/string[text()='"$LOC"']" $p > ${p}.bk
          mv ${p}.bk $p
          # finds "RebindingJcloudsLocation" references
          xmlstarlet ed -O -d "location/locationConfig/vmInstanceIds/map/entry[locationProxy/text()= \
              '"$LOC"']" $p > ${p}.bk
          mv ${p}.bk $p
        done
        FILES=`grep -l $LOC locations/*`
        if [ ! -z "$FILES" ] ; then
          echo "WARN  reference to $LOC in $FILES could not be removed;" \
               "may need manual editing or rebind ignore instruction"
        fi
      fi
    fi
  fi
done