#!/usr/bin/env python

import os, sys
import unicodedata

def depthfirstwalk(topdir):
    if not os.path.isdir(topdir):
        yield topdir
        return

    for subpath in os.listdir(topdir):
        fullpath = os.path.join(topdir, subpath)
        if os.path.isdir(fullpath):
            for derived in depthfirstwalk(fullpath):
                yield derived
        yield fullpath

#os.path.walk(sys.argv[1], fswalk, 1)
#os.path.walk(sys.argv[1], fswalk, 0)
for path in depthfirstwalk(sys.argv[1]):
    basename = os.path.basename(path)
    try:
        basename.decode('ascii')
    except UnicodeError:
        try:
            #utfname = name.decode('utf-8').encode('cp949')
            #utfname = name.decode('cp949').encode('utf-8')
            utfname = unicodedata.normalize('NFC', basename.decode('utf-8')).encode('utf-8')
            if utfname != basename:
                dirname = os.path.dirname(path)
                newname = os.path.join(dirname, utfname)
                print newname
                os.rename(path, newname)
        except UnicodeError:
            pass

# ex: ts=8 sts=4 et