[yocto] [meta-mono] [PATCH 1/1] gtk-sharp: Updated to GTK# 2.12.21

[Paul Eggleton]

On Thursday 27 February 2014 18:29:59 Alex J Lennon wrote:
> On 27/02/2014 18:18, Paul Eggleton wrote:
> > PR values needn't match up between different distros. The point is they
> > should get increased when a material change to the recipe's output
> > happens; and this can happen for example when:
> > 
> > * A class that the recipe inherits is changed
> > 
> > * A dependency of the recipe that influences how the recipe is built gets
> > changed
> > 
> > * Some global configuration changed that affects how the recipe is built
> > e.g. DISTRO_FEATURES
> > 
> > * A bbappend is added or removed
> > 
> > In all of these cases the recipe itself does not get changed at all -
> > prior to the PR server we had to remember to manually bump PR in the
> > affected recipes, or (more often) we'd forget to handle it properly
> > altogether. With the PR server, PR bumps happen automatically in response
> > to signatures changing, which is about as accurate an indicator as we can
> > get as far as determining whether the output has changed, and certainly
> > much less prone to mistakes.
>
> OK so I can't download the source code to a distribution and built
> identical, identically versioned packages to theirs? With something like
> RPM wouldn't I expect to be able to download an RPM source package
> and build an identical, versioned RPM from it?

They'll always be "identical" as far as the material content goes, that's not
in question here - we're just talking about the PR values. For the PR values
it depends - which distro are we talking about? IIRC for example, SHR and
Angstrom both make their PR servers available so that people's PR values
will match up if they build it from source themselves.

However, I think we're starting to head into territory where you have to
ask who is maintaining this distro you are referring to. If you're making
changes to how things get built, arguably it's now a derivative distro
and you ought to be maintaining it yourself; at which point you shouldn't
expect the PR values to match up. How else would you signify that you'd
made the configuration change (or added your own patch, or ...) if it's
someone else's distro that doesn't contain that change "upstream"?

> Taking a slightly different tack, if I upgrade a recipe PV from 1.0.0 to
> 2.0.0 to correspond to the upstream source versioning, and at that
> time I remove PR and build some packages.
> 
> Then a month later I realise I need something extra added to the
> configuration options, which gives me a different output, what do I 
> change to make sure the new package is versioned differently from
> the old package? (i.e. presumably if the network service is
> running it will handle it for me, but if it's not running then new
> package will be versioned identically to my old package?)

Yes. If you care about PR values (i.e. you're using packaging on the
target) then you need to enable and use the PR server. If you do that,
you don't need to make any additional change other than the
configure option change you've already made - EXTRA_OECONF
would presumably have been changed -> do_configure signature
changes -> dependent task signatures change -> the PR value
changes automatically.

> >> I suppose the other question is, if I release a package of revision X,
> >> then another which is up-rev'd' to Y as I made a change to the recipe
> >> and so the NBPRS up-revs, then somebody comes back to me and tells me
> >> they are having a problem with Xm then how do I link that rev X to the
> >> specific commit that went to build it so I can audit ?
> > 
> > The PR server doesn't track this - however, all of this information does
> > go into buildhistory if you enable that.
> 
> Must look at that, yes.

For reference:

http://www.yoctoproject.org/docs/current/ref-manual/ref-manual.html#maintaining-build-output-quality

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre