Storing build logs outside of .deb packages

Mattia Rizzolo mattia at
Mon Jun 1 10:12:10 BST 2020

On Sun, May 31, 2020 at 02:49:46PM -0700, Vagrant Cascadian wrote:
> On 2020-05-17, Paul Wise wrote:
> > On Sat, 2020-05-16 at 22:58 +0000, Chris Lamb wrote:
> >> My gut feeling is that this is the avenue we want to explore. Having a
> >> separate mechanism to capture this build-specific metadata would be an
> >> elegant solution and, as you imply, having the logs would have QA
> >> advantages as well as permit reproducible builds. The system could be
> >> generic enough for future use-cases that we cannot envisage too.
> >
> > Agreed that this is the best option. In order to standardise the
> > naming, structure and organisation of the data in order to make it work
> > across all Debian derivatives, probably a new conversation needs to be
> > started between ftp-master and the dpkg maintainer.
> >
> >> We have taken great pains over the years that no special knowledge,
> >> tools or tricks are required to compare the artifacts of a Debian
> >> build with respect to reproducibility.
> > I'm guessing you just ignore all differences in buildinfo files and
> > would have to add to that ignoring differences between build logs and
> > other build metadata?
> That sounds likely, yes.

I know this has been linked in multiple places, but I'll link it again:
there has also been a relevant thread in debian-devel a few months back,
spawned off the debian/.build thread started by Niels Thykier.

I'm not quite clear what's the best way forward: I could go and
implement whatever feels best to me in pbuilder, and then hope the rest
of the tooling with catch up, copy my idea and adapt, but that feels

                        Mattia Rizzolo

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