[GeoNode-devel] GeoNode dependencies breaking & Pypi consistency

Alessio Fabiani alessio.fabiani at geo-solutions.it
Fri Oct 20 01:15:40 PDT 2017


Already like this in GeoNode 2.7+




Alessio Fabiani

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On Fri, Oct 20, 2017 at 12:50 AM, Jeremiah Cooper <
jcooper at jeremiahcooper.com> wrote:

> +1 to this.  MapStory has seen these breaking changes as well.  Pinning
> everything would help alleviate having to track down which dependency broke
> the build every time it happens.  It's happened several times just in the
> past few weeks.
> Thanks.
> Jeremiah Cooper
> On Thu, Oct 19, 2017 at 5:54 PM, Travis Brundage <
> tbrundage at boundlessgeo.com> wrote:
>> Hi all,
>> Recently I have seen some core GeoNode behaviour breaking due to changes
>> in our dependencies. This isn't the first time it's happened. What happens
>> is that we have many dependencies pulling in the latest version via >= in
>> our requirements, but something changes which conflicts with current
>> technology or otherwise is broken, causing core GeoNode to break as well.
>> In addition, I'd like for us to have consistency in regards to GeoNode
>> and its sub projects in pypi. Establishing the pypi repo as consistent with
>> the official repos for the dependencies will ensure changes are visible and
>> (hopefully) reviewed. This will help at least partially with preventing
>> broken dependencies. One possibility is introducing some automation here
>> through a continuous integration tool, so there are regular builds to pypi
>> straight off the repos in GeoNode. This method may help establish a
>> consistent cycle and also ensure we're diligent about quality in changes to
>> the code.
>> For the dependencies breaking, we can start pinning versions in our
>> requirements (that is, using == instead of >= in requirements.txt). The
>> upside of this is we will have consistent, expected behaviour that won't
>> change due to updates. The downside of this is we won't necessarily have
>> the most recent versions of dependencies, which we will want to
>> occasionally update. I feel pinning versions makes sense, but we should
>> make sure to update dependencies regularly. Before making this change, we
>> should check what versions are actually being used and working with
>> GeoNode, as >= will pull later versions, so simply doing a find+replace of
>> >= to == won't be correct.
>> Cheers,
>> Travis
>> --
>> Travis Brundage
>> Software Engineer | Boundless
>> tbrundage at boundlessgeo.com
>> 250.888.2820 <(250)%20888-2820>
>> @boundlessgeo
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