One thing to keep in mind is that even the main qgis
installers/distributions do not have fixed dependency versions. Using
downloaded macOS QGIS will have different dependencies than Windows and
so will all the linux/*nix flavors.
On 7/31/20 7:14 AM, Ari Meyer wrote:
@Nyall, that proposal appears to be specific to plugins -- not sure if
that's the best place to discuss this issue.
@Greg: I found that many of the exact dependencies were not even
available through the main channels. So if the QGIS devs
compile/build against such versions, I'm not sure there's an easy way
to even specify such a conda recipe, unless all those dependencies are
also made available somehow. I didn't expect that those versions
would not even be there with the others for the various libraries.
Could this imply that the library developers don't want those versions
to be used? Not sure.
As a user and developer, I just want to be sure that if I pull down
conda-forge qgis version X that I will get the same effective
distribution as contained in downloadable installer version X. Right
now, we are getting a very different set of dependencies.
Thanks,
Ari
On Thu, Jul 30, 2020 at 6:44 PM Greg Troxel <[email protected]
<mailto:[email protected]>> wrote:
Nyall Dawson <[email protected]
<mailto:[email protected]>> writes:
> There's a related proposal at
> https://github.com/qgis/QGIS-Enhancement-Proposals/issues/179 --
> probably best to keep the discussion on that page.
Not really about the details of using conda but about the concept:
conda's documentation says it runs on "Windows, macOS and Linux" but
qgis also runs on at least NetBSD and almost certainly other BSDs.
it seems that to build something, including qgis the requirement is
that the things it depends on are present in some way that is
found by
the build. People can choose to do that however they want, and it
seems funny to me to impose a requirement. If this is really
"let's
publish a conda config file so that people who want to do that
can do
less work", that's of course fine, but if it's more "if you
don't have
conda then you can't build qgis", that's something else.
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