parallelize file creation

[pilosoposerio]

this is for another enhancement

cli runs too long, maybe multiprocessing module can be used to improve the performance of this block

geojsplit/geojsplit/cli.py

Lines 42 to 65 in 774da7b

	for count, features in enumerate(gj.stream(batch=args.geometry_count)):
	try:
	new_filename: Path = gen_filename(
	gj.geojson, count, width=args.suffix_length, parent=args.output
	)
	except TypeError as e:
	logger.error(f"Could not generate a unique suffix.", exc_info=e)
	try:
	if not args.dry_run:
	if not new_filename.parent.exists():
	logger.debug(f"creating output directory {args.output}")
	new_filename.parent.mkdir(parents=True, exist_ok=True)
	with new_filename.open("w") as fp:
	json.dump(features, fp)
	logger.debug(
	f"successfully saved {len(features['features'])} features to {new_filename}"
	)
	except IOError as e:
	logger.error(f"Could not write features to {new_filename}", exc_info=e)
	# account for 0 based index of enumerate that is required for `pad` method.
	if args.limit is not None:
	if count >= args.limit - 1:
	break