[Bug 1111691] Review Request: qore - multithreaded programming/scripting language

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https://bugzilla.redhat.com/show_bug.cgi?id=1111691



--- Comment #16 from David Nichols <david@xxxxxxxx> ---
(In reply to David Nichols from comment #15)
> (In reply to Michael Schwendt from comment #14)
> > > obsolete-not-provided
> > 
> > First of all, while you can put anything in an Obsoletes tag, only package
> > names (with/without a version-release range) will actually result in the
> > specified package(s) getting replaced with another package (or multiple
> > ones). 
> > 
> > Further, anything declared as obsolete breaks existing dependencies on it.
> > Unless there is a corresponding "Provides" for the obsolete thing.
> > 
> > > Obsoletes: libqore5 < 0.8.12
> > 
> > If there's a "Requires: libqore5 …" anywhere, there would be a broken
> > dependency, regardless of whether "libqore5" is a physical package %name, a
> > virtual package name, or something else as a "Provides" tag.
> > 
> > http://fedoraproject.org/wiki/Packaging:Guidelines#Renaming.
> > 2FReplacing_Existing_Packages
> > 
> > > Obsoletes: qore-module-api-0.18
> > 
> > Same here. This capability will be "gone", "hidden" from the depsolver, and
> > anything that still depends on it will cause a broken dependency. The
> > package that contains this Obsoletes tag does not implicitly "Provides" the
> > obsolete thing.
> 
> OK, I tried to read about this stuff, but I did not see this covered in any
> of the RPM or packaging guides.  I think that I understand now.
> 
> So then I will do this instead:
> 
> Provides: qore-module(abi) = 0.18
> Provides: libqore5 = 0.8.11
> Obsoletes: libqore5 < 0.8.12
> # provided for backwards-compatibility with unversioned capabilities and
> will be removed when the ABI drops backwards-compatibility
> Provides: qore-module-api-0.18
> Provides: qore-module-api-0.17
> Provides: qore-module-api-0.16
> Provides: qore-module-api-0.15
> Provides: qore-module-api-0.14
> Provides: qore-module-api-0.13
> Provides: qore-module-api-0.12
> Provides: qore-module-api-0.11
> Provides: qore-module-api-0.10
> Provides: qore-module-api-0.9
> Provides: qore-module-api-0.8
> Provides: qore-module-api-0.7
> Provides: qore-module-api-0.6
> Provides: qore-module-api-0.5

This did not work because libqore then provides a capability that it's
obsoleting.

Therefore I will update the version to 0.8.11.1 and then do the following:

Provides: qore-module(abi) = 0.18
Provides: libqore5 = %{version}
Obsoletes: libqore5 < %{version}
# provided for backwards-compatibility with unversioned capabilities and will
be removed when the ABI drops backwards-compatibility
Provides: qore-module-api-0.18
Provides: qore-module-api-0.17
Provides: qore-module-api-0.16
Provides: qore-module-api-0.15
Provides: qore-module-api-0.14
Provides: qore-module-api-0.13
Provides: qore-module-api-0.12
Provides: qore-module-api-0.11
Provides: qore-module-api-0.10
Provides: qore-module-api-0.9
Provides: qore-module-api-0.8
Provides: qore-module-api-0.7
Provides: qore-module-api-0.6

I can also remove the unversioned Provides if it's a problem, I just would like
to keep backwards compatibility with existing installed modules if possible,
but if it's not acceptable for Fedora, then I will remove the lines.

I should have the new release ready in a few minutes.

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