RFC: Profile support

[Junichi Uekawa]

Hi,

I'd like this profile thing to support reasonable use of qemubuilder,
so I can target build for ARM and MIPS.  Currently I need to specify
--configfile, and it's a bit annoying, because I have a script which
just does that.

I don't quite follow your proposal, do you have a prototype?


At Mon, 14 Dec 2009 13:31:48 +0100,
Loïc Minier wrote:
> 
>         Hey folks
> 
>  A very large number of people running pbuilder use it with multiple
>  build environments.  Backports, sponsoring, company builds, Debian from
>  Ubuntu or Ubuntu from Debian uploads, local repo, ...
> 
>  For instance, the ubuntu-dev-tools package ships two wrappers
>  (pbuilder-dist and pbuilder-dist-simple) around pbuilder to manage
>  multiple tarballs (one per $DIST).  I recently discovered another
>  package of pbuilder scripts which would wrap pbuilder to offer one
>  tarball per "project".  I use a relatively large set of wrappers
>  myself.
> 
>  So I think pbuilder should support this better; it's easy to customize
>  almost everything pbuilder does, but there is no standard way to save
>  and re-use these customizations.
> 
>  I think we should consider a "profile" feature.  This would be a
>  simple unix-name which would:
>  - point to a /etc/pbuilder/$profile.pbuilderrc main config file
>  - adapt pbuilder's pathnames for the tarball and result dirs, e.g.
>    /var/cache/pbuilder/base-$profile.tgz and
>    /var/cache/pbuilder/result-$profile or similar
>  - store custom settings in the $profile.pbuilderrc, notably:
>    * --distribution => DISRIBUTION=, --components etc.
>    *  --mirror => MIRROR=, --othermirror etc.
> 
>  So on --create, the profile would be created with the settings used at
>  this time, and subsequent --build, --update etc. with --profile foo
>  would use the same settings automatically.  It's some kind of glorified
>  --configfile.
> 
>  A couple of other related things I think would be worth improving are:
>  * cross-arch support; this should simply work out of the box for the
>    bi-arch cases (e.g. i386/amd64), but I'd also like to work 
>  * support of multiple APT repos; currently this is supported via
>    aptconfdir, but is not too nice to setup IMHO
> 
>  What do other maintainers think of the profile concept?
> 
>    Thanks,
> -- 
> Loïc Minier
> 
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