rawhide's yelp adds a dependency on docbook-dtds which significantly increases its footprint due to the depchain of docbook-dtds. From a quick look, I can't see any real reason why openjade would be required by docbook-dtds and snipping the dep would help keep the livecd size under control
Thanks for report, discussed in the past in #234345. I would say triggerin would be good solution (or at least change to Requires(post): openjade) *** This bug has been marked as a duplicate of 234345 ***
Requires(post) doesn't help as it still gets pulled in for it. A trigger might, but triggers are very tricky to get right. A simple fix might be checking if the openjade catalog is there and registering with it if so, else just leaving it for the openjade %post to later pick up
As I maintain both packages, I will think about that solution - although I would say trigger in docbook-dtds is slightly better (as the goal is to register openjade catalogs in docbook-dtds catalogs - and it has almost nothing to do with openjade package). So we have three ways now: 1) Keep it as it is - will save no space on LiveCD 2) triggerin openjade in docbook-dtds - will save space on LiveCD (as openjade catalogs will be not registered when no openjade available), a bit tricky to have it running correctly, but it is not affecting other packages 3) move registration to openjade - will save space on LiveCD - but could cause troubles in some situation (e.g. if you install openjade first, it will not be registered in docbook-dtds - which could cause some troubles). So registration has to be doubled (done in both - openjade and docbook-dtds %post - just for cases that the second package is already installed - that's almost as tricky as the trigger solution and affects both packages as they have to be synchronized. I like the trigger solution, as this affects only one package and will have minimal impact if properly written. But as you said, it could easily be broken and has to be tested before applying to Fedora (definitely not to F9 or lower to not break stable release).