#!/bin/sh
hash_dir=.hash
mkdir -p "$hash_dir"
for file; do
	if [ -L "$file" ]; then
		continue
	fi
	hash=`sha1sum "$file" | cut -d' ' -f1`
	hash_file=$hash_dir/$hash
	mv -i "$file" "$hash_file"
	ln -s "$hash_file" "$file"
done