For tox 3.x and earlier, passenv was a space-separated list; as of tox
4.0.0, it's comma-separated. For a while, our spaces would be silently
included in the now-one-and-only passenv value parsed (which wasn't
great, but mostly just caused confusion) -- as of tox 4.0.6, however, it
became a hard error, and all tests would fail like
pass_env values cannot contain whitespace, use comma to have multiple
values in a single line, invalid values found 'SWIFT_* *_proxy'
Unfortunately, we don't really know what versions of tox all our various
stakeholders might want/need to use (though we previously set a
minversion of 2.3.2). We might be able to spread values over multiple
lines to make it compatible with both tox 3 *and* tox 4, but I'm fairly
certain *_proxy was only included for some variables that are recent
versions of tox include by default anyway, so just increase our
minversion (which was too low, anyway -- allowlist_externals which we
already configure was added in 3.18.0) and get rid of *_proxy.
FWIW, python-swiftclient was already specifying 3.18.0 as a minversion,
so I expect the new minversion to not be a problem.
Also, add ./.functests to a bunch of allowlist_externals, as newer tox
is more strict about that sort of thing.
Drop skipsdist in a bunch of places so we can import swift from func
tests and docs. (Still not sure why I don't see us hitting a similar
problem for unit tests...)
Change-Id: I4be1e86e3291ad1619c695fb93d7cadf053b556d
2d7c1dc6dd