[GNC] Upgrade Path from version 2.6.16 on MacOS High Sierra (10.13.6) and beyond

[Geert Janssens]

Op maandag 28 januari 2019 17:40:13 CET schreef Christopher Lam:
> Hi David
> 
> I run 2.6.21 and 3.4 side by side on my machine on the same data file
> 
> > without trouble. The visual experiences can’t be optimized for both since
> > they use different UI engines but the same configuration files it seems.
> > 
> > There are also numerous incompatibilities with the standard reports
> > between the versions, which make it moderately annoying to run them across
> > versions. Specifically, the Transaction report total settings are
> > completely different and incompatible, making a saved report based on this
> > unusable in one or the other versions. While it would be preferable for
> > these reports to preserve backwards compatibility, I am willing to accept
> > the loss for the joy of having someone finally working on reports...

I think you can tell GnuCash 3.x to look elsewhere for saved report 
configurations (and all other application specific data) by setting 
environment variables GNC_DATA_DIR and GNC_CONFIG_DIR. Both will be completely 
ignored by GnuCash 2.6.x. The only thing I don't know for sure is whether 
these get set by the gnucash bundles on MacOS. In that case it would be hard 
to override.

Of course if you set these environment variables, make sure to copy the 
relevant files from the original location as well (saved-reports, books 
directory,... basically anything in ~/Library/Application Support/GnuCash you 
wish to take as a basis for the separate configuration).

The only part that can't be separated yet as far as I know is the options 
stored via gsettings (which proxies to the defaults system on MacOS). Those 
are per user, not per application version at this point.

Regards,

Geert