[aur-general] Bump pkgrel just to force recompilation

[Georg]

Am 10.08.2017 12:33, schrieb Justus-dev at Piater.name:
> Hi -
> 
> I keep running into problems caused by stale installations from the 
> AUR,
> such as upgraded, ABI-incompatible dependencies or Python packages 
> still
> installed under /usr/lib/python3.5/ where they are no longer found 
> since
> the move to python3.6.
> 
> My understanding is that in such situations, the affected packages
> should bump pkgrel to force rebuild and reinstall, even if the source
> and the rest of the PKGBUILD remain unchanged.
> 
> Is this understanding correct?  If so, can this be clarified in places
> such as [1][2] where people cannot miss it?
> 
> Confronted with this issue, some maintainers advise their users to just
> rebuild by hand, but that defeats part of the purpose of package
> management systems.  I don't want to have to debug weird run-time 
> errors
> one by one, trace the problem to this trivial issue, and then solve 
> each
> of them by manual rebuild.
> 
> Justus
> 
> 
> [1] https://wiki.archlinux.org/index.php/PKGBUILD#pkgrel
> [2] https://wiki.archlinux.org/index.php/Arch_User_Repository

Hi Justus,

in my opinion, pkgrel is to be bumped when something with regard to the 
package changes, not for the sake of rebuild only.
Keeping track of rebuilds is the users task, you could e.g. after a 
python update go through all remaining files in the old versions folder 
and initiate a rebuild of the corresponding packages.
This is easily scriptable and should be regarded as usual update hygiene 
like ocassionally checking /var/cache/pacman and other tasks.
Arch is not about fully automating everything and hiding the internal 
workings from the user.
About the debugging: when a major update happens, you are usually 
informed about the necessary actions in the pacman output. Paying 
attention to that is not optional in Arch.

best
Georg