On Thu, Jan 17, 2019 at 11:44:15PM +0000, Guenter Milde wrote: > On 2019-01-17, Kornel Benko wrote: > > Am Mittwoch, 16. Januar 2019 14:20:37 CET schrieb Scott Kostyshak > > <skost...@lyx.org>: > > >> We should at some point > >> come up with a guideline. For example, we could test validity of .lyx > >> files and convergence for the previous 4 version file formats, and test > >> (in addition to validity and convergence) compilation of only the > >> previous 2. Or something like that. I don't have any strong opinion on > >> this. I guess we have to think about what is the best way to catch > >> important regressions. > > > +1 > > I'd like to look at this from a user perspective: > > * The most serious bugs are, when my old documents no longer work. > > * It is even more severe, > > - if I cannot open them in LyX > - or if they become corrupted in a hidden way -- subtle changes that are > easily overlooked but may be fatal (missing content due to missing > characters or paragraphs, say). > > * Failure to export to an earlier LyX version is less severe, especially > for really old versions. If everything else fails, I may try via LaTeX.
+1 > This is reflected in the unconditional commitment to ensure old files work > while back-conversion is only provided "if reasonable". > > However, currently our lyx2lyx export tests do it the other way round: > > * starting point are files from the newest or last stable version > > * we always test a round circle, so there is no chance to test > regressions to forward-conversion in a file that fails with back-conversion. > > * we only test if a file opens in LyX, not if LyX can generate output. > > > Suggestions: > > 1. test with documents originally from old LyX versions. > > We do have a large sample in lib/(doc|examples|templates) in the > respective version branches in the repository. > > test old documents for > > a) opening in lyx > > b) export to the default output +1 > 2. test with recent documents What do you mean with "recent documents" > a) export to old LyX formats > > b) re-opening the exported file > > c) convergence > > d) export to the default format > > While this increases the number of tests, it allows easier localisation of > errors and also a more fine-grained tagging (inverting only non-fixable > parts of the round-circle). > > However, the most important thing is that the most urgent regressions > (problems with existing old documents) can be identified and be given > preference status when assigning valuable developer time. +1 Scott
signature.asc
Description: PGP signature
