..by the way, the main dialog uses yad, not zenity like the rest, so yad is also required; I may still convert the rest of the dialogs to yad, but wanted to let people start testing the basic mechanics of the script.
Command line options are no longer supported in this version.. the reason being that the old version was written to not allow the use of directory names with spaces; it also was coded to have everything in a single directory tree.
By allowing the user to pick directories in a GUI a much different set of error checking was needed and parts of it were contradictory with the old code. If anyone is really attached to the console options I could restore the previous mkrepo to a console only script and include both, but the old one will not support set-ups like Archie's.