[Bug 2283055] Review Request: supernovas - The SuperNOVAS C/C++ astrometry library

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https://bugzilla.redhat.com/show_bug.cgi?id=2283055

Mattia Verga <mattia.verga@xxxxxxxxx> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
              Flags|                            |fedora-review?
           Assignee|nobody@xxxxxxxxxxxxxxxxx    |mattia.verga@xxxxxxxxx



--- Comment #36 from Mattia Verga <mattia.verga@xxxxxxxxx> ---
(In reply to Attila Kovacs from comment #35)
> 
> (In reply to Mattia Verga from comment #33)
> 
> Hi again Mattia,
> 
> Before I upload a new SPEC (and a new SRPM built from it on Copr), I wanted
> to get your opinions on the issues you brought up.
> 
> > A few issues while reviewing the package:
> > 
> > - Sources in the SRPM does not match with those downloaded from the upstream
> > URL
> 
> This must have been me referencing the wrong Copr build, since the SRPM is
> built on Copr from the source, and so the only way they can diverge is if
> the build was an older one, from before the last change on upstream.
> 
> It does bring up a question of versioning though, which I wanted to clarify
> before proceeding. The upstream version is a tag on a branch that contains
> patches to make packaging easier, as per your earlier suggestion. It has an
> upstream version number '1.0.1-2'. As such, would the RPM version be '1.0.1'
> (and release '2'), or would it be '1.0.1-2' and the release whatever Fedora
> assigns, so the RPM may have a version number such as '1.0.1-2-1'? (I feel
> the latter is the more appropriate, but I'd like you to confirm).
> 

'1.0.1-2-1' would not be a valid NVR. You could however do '1.0.1.2-1' (1.0.1.2
version and 1 release) if you think it doesn't worth to release a '1.0.2'
bugfix version.

You can check the diff in the automatic COPR build in comment#32.

> 
> > - No known owner of /usr/lib64/supernovas
> > Perhaps the -cio-data subpackage should just own the entire
> > %{_libdir}/%{name} directory?
> 
> Ye, that makes sense. I'll add a '%dir %{libdir}/%{name}' into %files for
> it...
> 
> > - Macros in: supernovas (description)
> > I think this error is due to the presence of a '%' character in the
> > description. It should be escaped (I think using a double '%%')
> 
> I think I removed these macros a while back (I don't see them in the spec
> any more). This is another indication that the Copr build I referenced last
> was an old one by mistake...

I think in the "100% API compatibility" phrase RPM doesn't like that '%'...

> 
> > - rpmlint errors
> > supernovas-solsys2.x86_64: E: undefined-non-weak-symbol
> > /usr/lib64/libsolsys2.so.1.0.1 novas_trace	(/usr/lib64/libsolsys2.so.1.0.1)
> > supernovas-solsys2.x86_64: E: undefined-non-weak-symbol
> > /usr/lib64/libsolsys2.so.1.0.1 jplint_	(/usr/lib64/libsolsys2.so.1.0.1)
> > supernovas-solsys2.x86_64: E: undefined-non-weak-symbol
> > /usr/lib64/libsolsys2.so.1.0.1 novas_error	(/usr/lib64/libsolsys2.so.1.0.1)
> > supernovas-solsys2.x86_64: E: undefined-non-weak-symbol
> > /usr/lib64/libsolsys2.so.1.0.1 jplihp_	(/usr/lib64/libsolsys2.so.1.0.1)
> 
> OK, this is a bit more involved...
> 
> The latest spec (and upstream branch from which the package is built) fixes
> 2 of the 4 errors. The `solsys2` library just needed a link flag against the
> parent `libsupernovas` to get two of the missing symbols defined.
> 
> However, the missing `jplint_` and `jplihp_` are an intended feature of the
> `solsys2` plugin. As the description of this sub-package implies this plugin
> requires user-supplied code to work, and these functions are exactly the
> ones that must be defined by the user when using the `libsolsys2` plugin
> library. This whole subpackages is aimed for supporting legacy code only,
> for people who have existing code that define those `jplint_` and `jplihp_`
> symbols, and want to compile their code with supernovas. I can think of 3
> ways to address this:
> 
>  1. Let it be as such, if that's OK. (The Debian package has passed the
> initial reviews and is moving to testing with the same setup.)
>  2. I can define weak dummy implementations of the `jplint_` and `jplihp`
> symbols that simply return an error. That would cure the rpmlint errors, but
> it would also hide the fact that the `solsys2` plugin really requires these
> symbols be defined by the user-code. This would probably also mean that I'd
> have to create a new upstream branch/tag (e.g. 1.0.1-3) to distinguish it
> from the one used by the Debian package.
>  3. Drop providing the `solsys2` plugin as a library altogether, and supply
> the source code as documentation (examples) only. This is fine, but it
> requires a bit of extra work for people who want to link their existing
> (old) code with the `solsys2` functionality.
> 
> What would be your solution?

I think that if that is expected, it should be fine. But I don't know much
about C programming/linking, so I'll ask for some advice by more skilled users
on how to deal those errors.

> 
> > - rpmlint warning
> > supernovas-cio-data.x86_64: W: only-non-binary-in-usr-lib
> > Is the cio_ra.bin an executable? Or it's just a resource? If the latter,
> > maybe it can be moved under %{_datadir}/%{name}?
> 
> It is a resource but it is a platform-dependent one -- so it has an 'arch'
> dependence. %{_datadir} has no arch-dependence, but %{_libdir} does, which
> is why I thought this resource might fit there best. Or do you think it's
> better to put arch-dependent data into {%_datadir}, perhaps under a
> %{name}/%{_isa} directory instead?
> 

mmm I'll ask for that too, I don't think I've never encountered such a
situation...

> 
> I'll await your responses before submitting a new SPEC with the appropriate
> changes.
> 
> Thanks in advance,
> 
> -- Attila.

I'll let you know ASAP.
Also note that, while I can do a full review of the package, you will still
need someone to sponsor you as described at
https://docs.fedoraproject.org/en-US/fesco/Packager_sponsor_policy/


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