Newbie looking for some additional info that's not available via the 'man' page for createrepos - (trying to debug/diagnose someone elses product build scripts).

The basic command syntax is:
createrepos <options> <directory>

Q1 - <directory> is where all the individual .rpm files are located, correct?
Q2 - There doesn't appear to be a recurse options, so assuming it doesn't?

-o --output is the "optional output directory (useful for read only media)"
Q1 - what exactly is placed in the output directory? One file?, several files?, filenames?
Q2 - if not used, what is the default output directory? The one from which the command is executed? or <directory>?

thanks in advance!