| #!/usr/bin/python3 | |
| import os | |
| import sys | |
| from concurrent.futures import ThreadPoolExecutor | |
| import gi | |
| from gi.repository import Gio, GnomeDesktop | |
| gi.require_version('GnomeDesktop', '4.0') | |
| MAX_WORKERS=os.cpu_count() | |
| executor = ThreadPoolExecutor(max_workers=MAX_WORKERS) | |
| 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() | |
| try: | |
| 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) | |
| except gi.repository.GLib.GError as e: | |
| print(f"ERROR {e} {uri}") | |
| return False | |
| return True | |
| def thumbnail_folder(factory, folder): | |
| for dirpath, dirnames, filenames in os.walk(folder): | |
| for filename in filenames: | |
| executor.submit(make_thumbnail(factory, os.path.join(dirpath, filename))) | |
| 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)) |
Stolen from https://askubuntu.com/questions/199110/how-can-i-instruct-nautilus-to-pre-generate-thumbnails/201997#201997
Changes: