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

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On Wed, 2022-05-04 at 21:45 +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. 

Hi,
Again where is the request ? I'd like to see a bit better why it is
needed and if we really need that.  
But if he want download sources that aren't use in spec file,  I prefer
opt-in in sources :  

fedpkg sources --force 

> From that perspective, the patch is wrong and opt-in would be the 
> correct way.
> 
> The suggestion to also allow configuring this in fedpkg.conf is good,
> because for the majority of users who do not encounter these special 
> packages could avoid the effort to adding an extra parameter every
> time.
> 
> It is also good to keep in mind that the original reason why unused 
> sources were bothering packagers was that they easily happen during 
> package version updates, when test builds are done with 'fedokg 
> mockbuild' after specfile has been updated to the new package
> version, 
> but before lookaside cache has been updated with new sources. At the 
> same time wiht #564, I also wrote another path #561 [1] that enabled 
> 'fedpkg new-sources --offline'. That allows a package update workflow
> that also avoids unnecessary downloads:
> 
>      $ rpm-bumpspec -n 1.2.3 *.spec
>      $ spectool -g *.spec
>      Downloading: https://example.com/downloads/package-1.2.3.tar.gz
>      Downloaded: package-1.2.3.tar.gz
>      $ fedpkg new-sources --offline package-1.2.3.tar.gz
>      Uploading: package-1.2.3.tar.gz
>      *Upload disabled*
>      Source upload succeeded. Don't forget to commit the sources file
>      $ fedpkg mockbuild
>      Not downloading already downloaded package-1.2.3.tar.gz
> 
> Given availability of this method, if there are no other, major cases
> where unused sources appear, I do not think opt-in is a bad solution.
> 
> [1]: https://pagure.io/rpkg/pull-request/561
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-- 
Sérgio M. B.
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