#!/bin/bash

if [ -z "$1" ]; then
    echo "Usage: $0 /path/to/tree"
    exit 1
fi

# remove all non unused python files
DIR=$1

ARCH=`uname -m | sed -e 's/i.86/i386/'`

mkdir -p $DIR/proc
mount -t proc /proc $DIR/proc
if [ $ARCH = "sparc" -o $ARCH = "sparc64" ]; then
    mkdir $DIR/dev
    mknod $DIR/dev/openprom c 10 139
fi
(/usr/sbin/chroot $DIR /usr/bin/anaconda -m dir://mnt/source --test --text --traceonly; \
cd $DIR; find usr/lib/python* usr/lib/anaconda -type f | sed 's,^,/,' ) | \
sort | uniq -u | sed s,^,./, | while read fn; do
    [ ! -d $DIR/$fn ] && rm $DIR/$fn
done
umount $DIR/proc
rmdir $DIR/proc
rm -rf $DIR/dev