graphics/py-pillow: Update to 7.0.0

[kai]

Summary

* Repo-Copy the Pillow 6.2.2 release to graphics/py-pillow6 to retain backwards
  compability for Python 2 consumers as the Pillow 7.0.0 release dropped the
  support for Python 2.

* Apply conditional statements to use either Pillow 7.x or Pillow 6.x for
  consumers that can be built for Python 2 or newer.

* Exceptions are ports that can be built for either Python 2 or Python 3
  only.  For the first case, consumers were just assigned to the repo-copied
  graphics/py-pillow6.

Release Notes:

 * https://pillow.readthedocs.io/en/latest/releasenotes/index.html

Backward Incompatible Changes (7.0.0):

 * https://pillow.readthedocs.io/en/latest/releasenotes/7.0.0.html#backwards-incompatible-changes

Detailed Changelog:

 * https://github.com/python-pillow/Pillow/blob/7.0.0/CHANGES.rst

PR: 243665
Submitted by: sunpoet (patch for 7.0.0 and repo-copied version)
Approved by: koobs (maintainer)

Test Plan

• poudriere -> OK (11.3-RELEASE, amd64 with py27, py35, py36, py37, py38)
• make index -> OK
• poudriere bulk -n -t -a -> OK

Some patching for www/py-wagtail was required to relax the version ranges for graphics/py-pillow to avoid conflicting dependencies.

[sunpoet]

databases/py-mongoengine/Makefile

18–19

Please remove trailing backslash.

graphics/py-willow/Makefile

33–43 ↗

(On Diff #68398)

I've updated py-willow to USES=python:3.5+ (as py-wagtail). It can be removed from this patch.

[koobs]

graphics/py-PyOpenGL/Makefile

16

Just duplicate *_DEPENDS=PYNUMPY here

graphics/py-django-easy-thumbnails/Makefile

34–36

DOCS_BUILD_DEPENDS didnt work here because of including bsd.port.pre.mk?

39–41

DOCS_BUILD_DEPENDS didnt work here because of including bsd.port.pre.mk?

math/py-PyWavelets/Makefile

31

I couldnt find pillow listed in setup_requires for 0.5.2, which means it snot a BUILD_DEPENDS

34

I couldnt find pillow listed in setup_requires for 0.5.2, which means it snot a BUILD_DEPENDS

misc/pylize/Makefile

19–20

Dubious BUILD_DEPENDS, worth actually checking

[kai]

Addressed the given pointers from sunpoet@ and koobs@.

Revised the usage of conditionals in relation with port options for following ports:

• graphics/py-cartopy
• graphics/py-django-easy-thumbnails
• graphics/py-sorl-thumbnail
• print/hplib
• science/rdkit
• www/py-pywikibot

Also reduced the usage of PORTREVISION bumps if only the BUILD_DEPENDS are affected:

• graphics/py-mcomix
• graphics/py-soya3d

[koobs]

Re removing PORTREVISIONS, we dont ''want'' ports to switch to use pillow6/pillow7 (based on / with new conditionals) after this commit?

[kai]

databases/py-mongoengine/Makefile

18–19

Thank you, good catch!

graphics/py-django-easy-thumbnails/Makefile

34–36

Thank you for the pointer, mea culpa. I revised also some other ports where I did the same mistake.

misc/pylize/Makefile

19–20

It seems neither be a dependency for building and running it. Apart from that the port will be gone in a few days.

Anyway, I removed graphics/py-pillow from the {BUILD,RUN}_DEPENDS for the sake of completeness.

[kai]

In D23713#521173, @koobs wrote:

Re removing PORTREVISIONS, we dont ''want'' ports to switch to use pillow6/pillow7 (based on / with new conditionals) after this commit?

I edited my previous comment because graphics/py-mcomix was not intended to be listed there because its BUILD_DEPENDS are also used as RUN_DEPENDS so we need the bump there.

The port graphics/py-soya3d only uses Pillow during build time and is also limited to Python 2.7 at the moment, so it doesn't have any conditionals.

[kai]

Add back .if ${PORT_OPTIONS:MVALUE} to prevent the error message `The following options helpers are incorrectly set after bsd.port.options.mk
and are ineffective: VALUE_RUN_DEPENDS` for following ports:

• graphics/py-sorl-thumbnail
• print/hplip
• www/py-pywikibot

[koobs]

@kai You have a deeper understanding of theQA implications and context of these changes. Approved if you're confident and happy and having addressed my prior review comments