I found a modified a python script to do multi threaded nautilus thumbnail generation.
With a large NAS, i don’t want to spend time waiting for thumbnails to be made, while entering a folder.
Run this as a cron job once a week and have thumbnails pre-generated 🙂
The code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | #!/usr/bin/python import os import sys import gi import threading import time threads = [] gi.require_version('GnomeDesktop', '3.0') from gi.repository import Gio, GnomeDesktop def make_thumbnail(factory, filename): mtime = os.path.getmtime(filename) # Use Gio to determine the URI and mime type f = Gio.file_new_for_path(filename) uri = f.get_uri() info = f.query_info( 'standard::content-type', Gio.FileQueryInfoFlags.NONE, None) mime_type = info.get_content_type() if factory.lookup(uri, mtime) is not None: print "FRESH %s" % uri return False if not factory.can_thumbnail(uri, mime_type, mtime): print "UNSUPPORTED %s" % uri return False thumbnail = factory.generate_thumbnail(uri, mime_type) if thumbnail is None: print "ERROR %s" % uri return False print "OK %s" % uri factory.save_thumbnail(thumbnail, uri, mtime) return True def thumbnail_folder(factory, folder): for dirpath, dirnames, filenames in os.walk(folder): for filename in filenames: t = threading.Thread(target=make_thumbnail, args=(factory,os.path.join(dirpath, filename),)) threads.append(t) t.start() while len(threads) > 4: time.sleep(1) i = 0 while i < len(threads): if threads[i].is_alive(): i = i + 1 else: del threads[i] def main(argv): factory = GnomeDesktop.DesktopThumbnailFactory() for filename in argv[1:]: if os.path.isdir(filename): thumbnail_folder(factory, filename) else: make_thumbnail(factory, filename) if __name__ == '__main__': sys.exit(main(sys.argv)) |
