dt_rename

#!/usr/bin/env python
import argparse
import discogstool.libtags as libtags
import sys
import os
import filecmp
import shutil
import traceback



def process_file(path, args):
    return libtags.rename_file(path, args.dest, args.verbose,
            args.dryrun, args.move, True)

parser = argparse.ArgumentParser(description='Copy music files, renaming them')
parser.add_argument("-s", "--src", default="/Users/andrew/Music/iTunes/iTunes Media/Music/",
        help="source directory")
parser.add_argument("-d", "--dest", required=True,
        help="destination directory")
parser.add_argument("-y", "--dryrun", action="store_true",
        help="Don't actually do anything")
parser.add_argument("-m", "--move", action="store_true",
        help="Move items instead of copying them")
parser.add_argument("-p", "--prune", action="store_true",
        help="Delete files under dest which aren't part of the set")
parser.add_argument("-v", "--verbose", action="store_true")

args = parser.parse_args(sys.argv[1:])

filelist = []
for root, dirs, files in os.walk(args.src):
    for fname in files:
        if fname.startswith("."):
            continue
        if fname[-3:].upper() in ["MP3", "M4A", "AAC", "MP4"]:
            filename = os.path.abspath(os.path.join(root, fname))
            try:
                filelist.append(process_file(filename, args))
            except Exception, e:
                print "Failed to process", filename
                traceback.print_exc()
        elif args.verbose:
            print "Skipping unsupported file", fname

filelist = frozenset(filelist)
if args.prune:
    for root, dirs, files in os.walk(args.dest, topdown=False):
        for fname in files:
            filename = os.path.abspath(os.path.join(root, fname))
            if filename not in filelist:
                if args.verbose:
                    print "Deleting", filename
                if not args.dryrun:
                    try:
                        os.remove(filename)
                    except Exception, e:
                        print "Couldn't delete", filename
        if not os.listdir(root):
            if args.verbose:
                print "rmdir", root
            os.rmdir(root)