[ros-release] Ease comparing versions of packages between ROS distros

[Isaac Isao Saito]

+∞

I've been longing for awhile for a tool like this. Thanks a lot!!
Those macros are so nice too to pick up mis-settings.

I have one trivial request; can these html pages under
www.ros.org/debbuild linked from each other? That would make it even
easier for me to explain to less-intense maintainers around me (then I
would be able to just give a single link).

# where's issue tracker for these?

Isaac

On Fri, Mar 7, 2014 at 10:19 AM, Jonathan Bohren
<jonathan.bohren at gmail.com> wrote:
> Cool stuff! Thanks, Dirk!
>
> -j
>
>
> On Thu, Mar 6, 2014 at 6:11 PM, Dirk Thomas <dthomas at osrfoundation.org>
> wrote:
>>
>> For maintainers a common set of questions regarding multiple ROS
>> distributions are:
>>
>> * after releasing patch releases into Hydro, did I already released the
>> same version into Groovy?
>> * which versions of a repo are released in the current ROS distros?
>>
>> To answer those faster then looking up the relevant information manually I
>> generated some additional "compare version" pages.
>> They can be found in the same location as the Debian package status pages:
>> http://www.ros.org/debbuild/
>>
>> Currently the following variants exist:
>>
>> * Groovy vs. Hydro: http://www.ros.org/debbuild/compare_groovy_hydro.html
>> * Hydro vs. Indigo: http://www.ros.org/debbuild/compare_hydro_indigo.html
>> * all current distros (G, H and I):
>> http://www.ros.org/debbuild/compare_groovy_hydro_indigo.html
>>
>> Some predefined filters exist which allow to narrow down the list of repos
>> based on the following criteria:
>>
>> * different patch version:
>>   The packages from a repo in two ROS distros have the same major and
>> minor version but a different patch version.
>>   Usually that implies that you should update the distro which lacks a bit
>> behind.
>>   Temporary that might be the case when you first release a new version
>> into one distro and after some soak time release it into the other distros.
>>
>> * downgrade:
>>   The packages from a repo in a newer ROS distro have a lower major or
>> minor version number.
>>   The maintainer should reconsider the versioning of the repo and
>> rerelease the packages from the repo with proper version numbers.
>>
>> * same version from different branches:
>>   The packages from a repo have the same major and minor version
>> (potentially a different patch version) but are released from different
>> branches.
>>   That usually indicates a problem since it is likely that there could be
>> or will be two packages with the same version but different code (since both
>> branches might need to perform patch releases over time).
>>   Commonly the maintainer would increase the minor version when branching
>> for the next ROS distro to avoid this kind of situation.
>>
>> I hope you will find these pages useful when maintaining ROS packages.
>>
>> Cheers,
>> - Dirk
>> _______________________________________________
>> ros-release mailing list
>> ros-release at code.ros.org
>> http://lists.ros.org/mailman/listinfo/ros-release
>
>
>
>
> --
> Jonathan Bohren
> Laboratory for Computational Sensing and Robotics
> http://dscl.lcsr.jhu.edu/People/JonathanBohren
>
>
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