QGIS3 packaging request

[Liontooth (David Liontooth)]

QGIS3 is available in pre-release from the master branch at ​https://github.com/qgis/QGIS.

It has a slew of new and attractive features, but the MacPorts build will need some tweaking, likely including some upstream changes.

The current INSTALL file instructions for OS X suggest several dubious procedures and it would be great if Macports had a clean solution.

​https://www.3liz.com/blog/rldhont/index.php?post/2017/06/01/How-to-build-qgis-on-OSX-with-MacPort has good instructions, but they're incomplete.

The official QGIS3 release is scheduled for 2017-12-08. If possible, the two versions should be able to coexist.

[gnw3]

QGIS2 is fragile when I build with qt5, less fragile when using qt4. Unfortunately, QGIS depends on qwt61 which has to be either qt4 or qt5, so qgis +qt4 and qgis5 +qt5 won't be able to coexist.

[Veence (Vincent)]

I’ll do that next week. Thanks for pinging me if I forget!

[Veence (Vincent)]

What do you want me to package here? QGis 2.99 rXXXXXX, I mean, a snapshot of the Github tree?

[Liontooth (David Liontooth)]

Hi Vince,

Yes, the 2.99 snapshot! It's feature complete (frozen last week), so a good time to test the build, make sure everything is working, and give feedback -- also on the build process. The official release is scheduled for 2017-12-08 -- I'd like us to give them feedback on major issues before that happens, especially any platform-specific problems. The qt4 vs qt5 issue is also interesting.

[Veence (Vincent)]

Where do you get it? I trawled through the Internet and couldn’t find it.

Thanks!

[Malauch]

Is there any progress in that topic? It would be great to install QGIS3 via MacPorts.

[Veence (Vincent)]

I just committed 2.18.14 with support for the new PostGreSQL 10/PostGIS 2.4. So there's absolutely nothing preventing a QGIS 3 port to pop up, except I can't seem to find a suitable URL to download it.

[Malauch]

Github master branch isn't what you need - ​https://github.com/qgis/QGIS/tree/master? ​QGIS3dev Homebrew formula uses something like that:

 url "https://github.com/qgis/QGIS.git", :branch => "master"
    version "2.99"

Sorry, if I just wrote something stupid/obvious. I'm just a user.

[Liontooth (David Liontooth)]

Hi Vince,

The master branch at ​https://github.com/qgis/QGIS is 2.99. So you specify the older branches, but not 2.99. The previous poster points out that homebrew correctly labels the master branch as 2.99.

David

[Veence (Vincent)]

Fine, but that means pulling out a git snapshot. By Macports policy, in order that every build be repeatable, I need to choose a snapshot number and freeze it in the Portfile. Do you have any preference, or do I simply take the most recent snapshot?

[Malauch]

I believe most recent snapshot will be OK for testing purpose before releasing stable versions at 2017-12-08

[Liontooth (David Liontooth)]

We should use the most recent snapshop so that our bug reports are the most relevant for the developers.

[Malauch]

Hi Veence, did you have time for preparing QGIS3 port?

[Veence (Vincent)]

Heya. Unfortunately, something is missing, namely qtkeychain. It is required by qgis 3, but is not available under MacPorts. I’ll file a request for someone to pull it out.

[Liontooth (David Liontooth)]

​David Marteau ran into the same problem, and a few other wrinkles.

[Veence (Vincent)]

Ok, I’ve committed an initial port for QGIS 3. It should work.

Caveats:

1. QGIS server does not compile. Server option is OFF for this build;
2. The “qgis_bench” benchmark application isn’t linked correctly and caused rev-upgrade cycles. I deleted it in the post-destroot phase, so it’s not installed. If you need, I’ll figure out the correct install_name_tool magic to make it work;
3. QGIS does not detect the Python 3.6 interpreter despite it being correctly configured. I’m not sure this happens because of a bug or simply because QGIS’s python interface is not ready at the time.

Anyway, don’t hesitate to report any further bug you might encounter.

Have fun.

[Liontooth (David Liontooth)]

Frantastic; it's great to have this working, in good time for the official release of QGIS3.

Could we also try the 3D component? It was merged from ​https://github.com/wonder-sk/qgis3d three months ago:

"To build with 3D support, set WITH_3D=TRUE in CMake. This will build qgis_3d library and a testing executable qgis3d"

So maybe

configure.args-append  "-DCMAKE_INSTALL_PREFIX=${applications_dir}"
configure.args-append  "-DWITH_3D=TRUE"

[Veence (Vincent)]

Err… I think it’s been merged already. It works. Try ⇧⌘M, load a DEM and a vector file. Shift+mouse to vary your height