bootstrap macro

[Iain Arnell]

On Thu, Jun 30, 2011 at 5:32 PM, Petr Pisar <ppisar at redhat.com> wrote:
> You can get the drawing script from
> <http://ppisar.fedorapeople.org/perl_rebuild/depgraph>. It gets BuildRequires
> for each listed source package, translate them to corresponding source package
> name and put them into directed graph.
>
> (This is done calling repoquery which is really slow. Therefore I packaged
> perl-YUM-RepoQuery few days ago, but had not time to use it.)
>
> (Also it considers direct BuildRequires only. I'm implementing indirect
> dependenices into mass rebuild script now, so it could be reused, maybe.)
>
> Then it removes all leafs recursively and finally it uses graphviz do draw the
> graph.
>
> I would like to minimaze the graph to cycles only. Cycle finding is not
> implemented yet but it should be trivial within O(V×E): just flood a name of
> a vertex, and if the wave hit the origin, the vertex is in cycle; and do it
> for each vertex.

Interesting though this is, why are we trying to bootstrap the entire
rebuild? Perl 5.14 is sufficiently compatible with 5.12 that we can
continue to provide perl(:MODULE_COMPAT_5.12.*) in perl-5.14.1 rpm
until the rebuild is (nearly) complete and only need to worry about
bootstrapping the arch-specific stuff (a much smaller problem set with
no circular deps that affected my rebuild in mock). Once all the
arch-specific stuff is rebuilt, all of the noarch packages should just
work (except those with real failures due to new features - mostly
regex stringification messing up tests).

-- 
Iain.