Re: isar-exclude-docs vs. openjdk et al.

[Henning Schild <henning.schild@siemens.com>]

Am Fri, 9 Apr 2021 15:01:48 +0200
schrieb Jan Kiszka <jan.kiszka@siemens.com>:

> On 09.04.21 10:30, Henning Schild wrote:
> > Hi,
> > 
> > not sure that doc purging is really allowed or whether we are
> > messing with stuff we better should not mess with.
> > 
> > Am Thu, 8 Apr 2021 20:54:28 +0200
> > schrieb Jan Kiszka <jan.kiszka@siemens.com>:
> >   
> >> Hi all,
> >>
> >> there seems to be a conceptual issue with isar-exclude-docs purging
> >> documents in its postinst hook: If other packages are configured
> >> after isar-exclude-docs and those packages expects certain doc
> >> paths to be still there, see openjdk [1], they will fail.
> >>
> >> How to solve that?
> >>  - maintain a list of conflicting packages in that recipe?  
> > 
> > This is going to be cumbersome but when having a packet that needs
> > its docs, we probably should not install that cleaner.
> >   
> >>  - convert the package to a post-process hook?  
> > 
> > would still break apt-get update of packages that need their docs
> >   
> >>  - find a way to ensure a compatible ordering when running our
> >> postinst?  
> > 
> > again going to break apt-get
> > 
> > Looking at this one example it does not really need its docs, it
> > just expects them in "its own hack". My guess is that the problem
> > can be reproduced in a ubuntu container (where the no-docs stuff is
> > coming from), and can be used to report an issue so that the
> > update-alternatives script looks for the files conditionally. Or
> > maybe write a patch for that package and MR it on salsa directly.
> > 
> > If you are installing java you probably can store a few MB of docs
> > ;) 
> 
> Yeah, the case that triggered that is a bug, not a real scenario. I'm
> lacking a feeling how common that combination is and if there might be
> realistic combinations as well.

My guess is that it would be best to try and mainline that package
right into debian. They could use it for their containers, offer it for
their users and will maintain the list of conflicts or detect such bugs.

As far as i remember the configs came from ubuntu, not sure they have
it packaged or just smuggle it into their containers.

That said, i bet there are packages that have runtime deps on (their)
docs. Doc readers or applications that opt for cat ing a file on
--help, probably not made up ...

Henning

> Jan
> 
> > Henning
> >   
> >>
> >> Jan
> >>
> >> [1]
> >> https://groups.google.com/g/isar-users/c/uIHgzvCGLwU/m/tuOchY6BAgAJ
> >>  
> >   
> 
>