[buildd-tools-devel] Bug#836940: Bug#836940: Bug#836940: cowbuilder, sbuild: should behave identically in regard to default gnupg installation

[Johannes Schauer]

Hi,

Quoting Santiago Vila (2016-09-08 11:31:04)
> > Maybe a bug against debootstrap is in order that adds a new variant allowing it
> > to create a more minimal chroot?
> 
> Yes, please, but we don't really need a new variant, we just need a
> buildd variant that honors the build-essential definition in policy
> (which does not include required packages as such, only essential and
> build essential packages).

agreed. I filed #837060 about this.

I also added a new feature to sbuild. Let me quote from the man page:

       --purge-extra-packages
              This  is  an experimental option. Only use when you know what you
              are doing.  Source packages must be  buildable  with  only  their
              build  dependencies,  all  packages  marked as Essential:yes, the
              build-essential package and  their  transitive  dependencies  in‐
              stalled.  But  by default, most chroots will also include Priori‐
              ty:required packages and apt as well as their  transitive  depen‐
              dencies.  This  option will try to remove all additional packages
              that are not strictly required for the build  right  after  build
              dependencies  were  installed. This currently works best with the
              aspcud resolver. The apt resolver will not make as much effort to
              remove  all  unneeded  packages  and will keep all providers of a
              virtual package and all packages from any dependency  alternative
              that  happen  to  be installed. The aptitude and xapt resolver do
              not implement this feature yet.  The  removed  packages  are  not
              (yet)  added  again after the build finished. This can have unde‐
              sirable side effects like lintian not working (because  there  is
              no  apt to install its dependencies) or bare chroots becoming to‐
              tally unusable after apt was removed from them. Thus, this option
              should only be used with throw-away chroots like schroot provides
              them where the original state  is  automatically  restored  after
              each  build.  This command line option sets the PURGE_EXTRA_PACK‐
              AGES configuration variable. See sbuild.conf(5) for more informa‐
              tion.

Thanks!

cheers, josch
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