Comment # 5 on bug 1212798 from Michael Andres

(In reply to Franck Bui from comment #4)
> (In reply to Dominique Leuenberger from comment #3)
> > which is exactly what the bug was about - see
> > https://bugzilla.opensuse.org/show_bug.cgi?id=1041742#c2
> 
> Oh you're right, I just read the title of this bug and forgot already about
> the details.

Sorry, but me too. This aspect of bug#1041742 got lost.


We payed more attention to SINGLE_TRANS because it works on all systems (SUSE
Code15, TW and non-SUSE systems) and it also fixes all %pretrans and LUA
issues. But it ATM works with zypper only and it breaks a few features we have
(strictly requires download-in-advance; install can not be interrupted between
2 packages nor is it possible to retry a failing package; due to issues in the
filesystem package it's not able to upgrade a system when a usrmerge happens). 

The rpm-4.16 mentioned in bug#1041742 may offer a way not to use
`--noposttrans` and so may prevent losing the %transfiletriggerin in rpm, which
is more problematic than just executing it at a different location in the
workflow. The downside is, it's a SUSE specific patch. Zypper for building e.g.
TW images will still show the %transfiletriggerin, %pretrans and LUA issues on
older SLE and non-SUSE systems.

I'll look into this next week.