#!/usr/local/bin/python
"""
mkoldlinks - Given a tree with an "old-style" spunk distribution
and a database of new locations remove the datafiles and replaces
them with links to the new files.

"""

import sys
import os
import dbm
import regex
import string

DIR="anarchy_texts"
DATABASE="indexdb"
MATCHPROG=regex.compile("Spunk\([0-9][0-9][0-9]\)\..*")
IGNORE=[".", "..", "Index.txt"]

def main():
    dict = dbm.open(DATABASE, 'r')
    # Collect dictionaries
    os.path.walk(DIR, walker, dict)

def walker(dict, dirname, names):
    depth = string.count(dirname, '/')
    prefix = '../'*(depth+1)
    for name in names:
	fullname = os.path.join(dirname, name)
	if name in IGNORE or os.path.isdir(fullname):
	    continue
	if MATCHPROG.match(name) == len(name):
	    id = MATCHPROG.group(1)
	    id = string.atoi(id)
	    id = '%06.6d'%id
	    if dict.has_key(id):
		os.unlink(fullname)
		os.symlink(prefix+dict[id], fullname)
	    else:
		print 'Missing:', fullname

main()