On 2018-03-08 5:58 AM, Daniel P. Berrangé wrote:
On Thu, Mar 08, 2018 at 11:23:45AM +0100, Jos de Kloe wrote:
I have a question about an open review request on the eccodes package,
see: https://bugzilla.redhat.com/show_bug.cgi?id=1508950
Eccodes will replace grib_api for which downstream will stop support at
the end of this year.
Therefore the first draft spec file had Obsoletes/Provides entries to
make clear that eccodes will replace it.
Then I received a comment that this was maybe not correct, since the
replacement package may not be compatible enough so I disabled these
keywords.
Main differences are:
* grib_api provides a fortran77 library, which is absent in eccodes
* library and pkg-config files changed name
on the other hand, they both provide a fully compatible api version of
the c and fortran90 library.
On top of that, they both provide a collection of tools in /usr/bin with
identical names which gives a conflict in ownership if both packages
would be present at the same time.
looking at
https://fedoraproject.org/wiki/Packaging:Guidelines#Renaming.2FReplacing_Existing_Packages
is this a case where only an Obsoletes should be used?
Yes, IMHO this is a case where just using 'Obsoletes' on its own to get
the upgrade installed is reasonable. Any downstream RPM that depends on
the original package may well need adapting due to changed library name,
so claiming 'Provides' is not appropriate.
Regards,
Daniel
Just adding a reminder: make sure your Obsoletes is versioned.
Regards,
Fernando
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