Re: fedpkg sources - downloading unused source files: opt-in/opt-out

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On Mon, May 9, 2022 at 7:00 PM Kevin Fenzi <kevin@xxxxxxxxx> wrote:
>
> On Mon, May 09, 2022 at 01:21:53PM -0400, Neal Gompa wrote:
> > On Mon, May 9, 2022 at 1:13 PM Kevin Fenzi <kevin@xxxxxxxxx> wrote:
> > >
> > > On Wed, May 04, 2022 at 09:45:55PM +0300, Otto Urpelainen wrote:
> > > > Ondrej Nosek kirjoitti 4.5.2022 klo 18.01:
> > > > > Hi all,
> > > > >
> > > > > A few months ago fedpkg introduced a change which avoids downloading source
> > > > > files (from dist-git) that are not used in the specfile and therefore
> > > > > downloading them would be wasting of resources and time.
> > > > > The original request was opened here [1] and implemented here [2]. The
> > > > > logic is part of the command "fedpkg sources" and currently can't be
> > > > > disabled manually. The logic parses specfile, but doesn't do a deep
> > > > > analysis, so it is doesn't always right.
> > > > >
> > > > > Recently we got a request for opt-in implementation of this. It means you
> > > > > should actively use some argument (ie. --skip-unused) to avoid downloading
> > > > > unused sources. The requestor points out that it broke the original
> > > > > functionality and it is not possible to add any extra arguments into the
> > > > > complicated release process (RHEL kernel).
> > > >
> > > > Author of the patch under discussion here.
> > > >
> > > > The premise was that "specfile sources" equal "sources file sources". Since
> > > > there is a request like this, that is apparently not always the case. From
> > > > that perspective, the patch is wrong and opt-in would be the correct way.
> > >
> > > I think opt-in will be useless and make the entire option pointless.
> > > Most maintainers won't be aware it exists.
> > >
> > > Why would someone want to opt-out of this?
> > >
> >
> > I need to when working on ffmpeg updates, since it clobbers my
> > regenerated tarballs when I'm working normally. I had no idea about
> > this until someone pointed it out to me.
>
> So you mean where you have modified the source, but the name is the same
> as in spec and it overwrites your local changes by downloading
> the lookaside one over it?
>

Yes.

> I can see that being an issue early on, but after initial packaging
> wouldn't changes always also include the version and thus be different
> from whats in the spec/sources?
>

Nope. If you look at how I've been changing ffmpeg, the majority of
changes are within the same version:
https://src.fedoraproject.org/rpms/ffmpeg/commits/rawhide

> I was pleasently surprised when it didn't uselessly download the old
> source after I locally updated a spec.
>

For a lot of things, it's very useful, for sure. Just not for packages
like ffmpeg. :)



-- 
真実はいつも一つ!/ Always, there's only one truth!
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