Delete Gnome thumbnails for a list of given locations

cleanthumb.py

#!/usr/bin/env python


__doc__ = """
Deletes Gnome thumbnails for a given list of directories.
Very much helped by http://software.maexotic.de/python/cleanthumbs/
"""


import os, optparse, Image, urllib

thumb_path = os.path.expanduser("~/.thumbnails")


def process_thumbnail(f):
	global thumb_path

	thumb = os.path.join(path, f)
	try:
		img = Image.open(thumb)
	except IOError:
		print "WARNING: Could not read file '%s'\n         Thumbnail will not be deleted" % thumb
		return

	if not img.info.has_key("Thumb::URI"):
		if options.verbose:
			print "WARNING: Could not determine source file for '%s'\n         Thumbnail will not be deleted" % thumb
		return

	original_file = urllib.unquote( img.info["Thumb::URI"] )[7:]
	if len( filter( lambda p:original_file.startswith(p), args ) ):
		os.remove(thumb)
		if options.verbose: print "removed thumbnail: %s" % original_file


if __name__ == "__main__":
	parser = optparse.OptionParser(usage="Usage: %prog [OPTION]... PATH...")
	parser.add_option("-v", "--verbose", dest="verbose", action="store_true", default=False)
	options, args = parser.parse_args()

	# Process every file found in the thumbnail path
	for path, dirs, files in os.walk(thumb_path):
		map(process_thumbnail, files)