Re: Non-sensical DNF Functionality

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On Fri, Dec 6, 2024 at 9:28 PM Todd Zullinger <tmz@xxxxxxxxx> wrote:
>
> Stephen Morris wrote:
> > Yes, but this still highlights the final question as "sudo dnf download
> > symlinks-1.7-11.fc41.src" does the download but as shown above "sudo dnf
> > install symlinks-1.7-11.fc41.src" won't do the install.
> >
> > How do I find where the source has been installed to when under dnfdragora
> > when I search for symlinks in either names or descriptions I only get a
> > reference to the binary package even though I have installed the source
> > package as shown by "dnf info symlinks" which shows both the binary and
> > source packages as being installed? Especially when I would have thought the
> > source would have been installed to a sub_folder of /usr/src, but there
> > isn't a symlinks sub_folder of /usr/src, it only has akmods, annobin, debug
> > and kernels sub_folders.
>
> You shouldn't be using dnf to work with source rpm packages
> (other than downloading them, but even that isn't really
> required or optimal in most cases).  If `dnf install` for a
> source can even be made to work, it's very, very far from
> the intended use of dnf.
>
> Rather, if you want to explore the corresponding source for
> a Fedora package, use the fedpkg command.  For example, to
> get the expanded source for the symlinks package:
>
>     $ sudo dnf install fedpkg
>     $ fedpkg clone -a symlinks
>     $ cd symlinks
>     $ fedpkg switch-branch f41
>     $ fedpkg prep
>     $ cd symlinks-1.7
>     $ : ...
>     $ : profit!
>
> This downloads the source code, extracts it into the current
> directory, and applies any patches (of which there are none
> for this package, at this time).  That leaves you with a
> symlinks-1.7 directory to explore.
>
> If you don't want to use fedpkg, the next best thing, IMO,
> would be `rpm -ivh symlinks-1.7-11.fc41.src.rpm` to
> "install" it (as a normal user -- NOT as root).
>
> That creates an ~/rpmbuild directory which contains SOURCES
> & SPECS directories.  To expand the source, you'd run
> `rpmbuild -bp --nodeps SPECS/symlinks.spec` (from the
> ~/rpmbuild directory).  That would put the expanded source
> in ~/rpmbuild/BUILD/symlinks-1.7-build/symlinks-1.7.
>
> Using fedpkg is much easier and I'd highly recommend that
> instead of using rpmbuild, unless you have a strong desire
> to first learn a lot about rpmbuild rather than just poking
> at the symlinks source code. :)

Fedora's docs on building RPMs also use fedpkg. See
<https://docs.fedoraproject.org/en-US/package-maintainers/Packaging_Tutorial/>.

For me, learning that I was supposed to use fedpkg was the big epiphany.

Jeff
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