Until now it wasn't but with python3, import on future (not part of Python
library) means ${buildout:executable} is not enough. Anyhow, genbt5list should
be executed with all eggs IMO to avoid such problem.

I don't see any reason why we don't use upstream zope *versions.cfg files. This
just duplicates work and makes maintenance tedious especially now that we have
zope2, zope4py2 and zope4py3.

Also:
  * Remove pinned versions on eggs with newer version or already defined in
    Zope versions.cfg files.
  * Make sure that pinned versions in stack/slapos.cfg do not override Zope versions
    (for example ZConfig versions set in stack/slapos.cfg was creating a version
    conflict while installing another egg).

SIGUSR2 for reopening log files was handled by ZServer and waitress does not
handle signals at all, so we could handle this signal but Zope official
documentation recommends using logrotate `copytruncate`:
  https://zope.readthedocs.io/en/4.7/zopebook/MaintainingZope.html#log-rotation
  https://github.com/zopefoundation/Zope/issues/809

This fixes failures in erp5_dms:testWebDavSupport.

  Traceback (innermost last):
    [...]
    Module Products.ERP5Type.patches.OFSImage, line 94, in PUT
      return PUT_orig(self, REQUEST, RESPONSE)
    Module OFS.Image, line 665, in PUT
      data = data.encode('UTF-8')
  UnicodeDecodeError: 'ascii' codec can't decode byte 0xe3 in position 10: ordinal not in range(128)

Server header might be changed by client facing caddy, for which caddy code
has been fixed to not transmit the Server header at all by default.
In ATS Server header has been disabled by configuration.
haproxy does not add Server header at all.
Thanks to improvement in the test backend, it's asserted that Server header
send by the backend is left intact.

This was useless. dumps is enough.

And upgrading to the python3-supported version (1.1) requires gtk3 and recent
versions of freetype, glib, atk, gtk, gtkmm, atkmm...

https://wiki.inkscape.org/wiki/Tracking_Dependencies

Besides of consistency, this also avoids zope eggs versions to be overriden elsewhere.

This reverts commit 27f574bc.

NEO now should support zodbpickle >= 2 with nexedi/neoppod!19.

/cc @jerome
/merge-request-on nexedi/slapos!1125

Pick up nexedi/wendelin.core@3d0f134c to
fix build on Python3.

build on zope4

wip : patches

update patches

reactivatee some patches & egg and remove dep to old ZSQLMEthod

fix zope patch

add Sessions product

reintroduce reStructuredText

use ExternalEditor compatible with Zope4

reinstroduce the config of _Z2PORT and _Z2HOST for testing

fix patch ?

add CMFDefault

Revert "add CMFDefault"

This reverts commit 3e3545ebd02fa188f4265301bbbf6b6b0f0dad9b.

pin eggs version

jerome: stop allowing version picking and pin versions

Depends on nexedi/erp5!1529 and nexedi/erp5!1534

See merge request nexedi/slapos!1114

See merge request nexedi/slapos!1117

This upgrade teaches nxdtest to properly cancel test run and test job
when it receives SIGTERM or SIGINT.

See nexedi/nxdtest@6f75fa90...56e52da6 for details.

/reviewed-by @jerome
/reviewed-on nexedi/slapos!1121

Finishing touches to release wendelin.core 2.0.alpha2:

- Switch to using File IO provided by Pygolang
- Fix build_dso on clean checkout (not relevant for SlapOS)

nexedi/wendelin.core@11e023cf...ad6305c0

Tested via:

ERP5: https://nexedijs.erp5.net/#/test_result_module/20220127-586CEAFD
Wendelin: https://nexedijs.erp5.net/#/test_result_module/20220127-8444F82A

This upgrade adds ability to handle signals via nogil channels, and
other improvements and fixes.

See nexedi/pygolang@e18adbab and
https://pypi.org/project/pygolang/#pygolang-change-history for details.

/reviewed-by @jerome
/reviewed-on nexedi/slapos!1120

This upgrade prepares wendelin.core to be forward-compatible with
upcoming pygolang upgrade. It also brings in fixes to several crashes
caught by first on-field usage.

See nexedi/wendelin.core@49f826b1...11e023cf for details.

/reviewed-by @jerome
/reviewed-on nexedi/slapos!1120

See merge request nexedi/slapos!1118

Going Go1.17.3 -> Go1.17.6 brings in fixes to compiler, runtime and stdlib
including security fixes to syscall and net/http packages.

https://go.dev/doc/devel/release#go1.17.minor

Tested via:

- SlapOS.SoftwareReleases.IntegrationTest.Python2 (https://nexedijs.erp5.net/#/test_result_module/20220118-7422B39B), and
- SlapOS.SoftwareReleases.IntegrationTest.Python3 (https://nexedijs.erp5.net/#/test_result_module/20220118-30B9FCE8)

/cc @luke, @jerome, @alain.takoudjou, @xavier_thompson @tomo, @lu.xu
/reviewed-on nexedi/slapos!1116