Sync in the tox/pip changes for blessings

The need to sync in the tox/pip changes for setuptools < 58 that is used
in other charms. Reactive charms depend on charm-tools, which depends on
blessings<=1.6 which uses 2to3 that is deprecated and removed in
setuptools 58.0.

Change-Id: Ib90b58940c122913dd25ff0990cc3fa200183bea
This commit is contained in:
Billy Olsen 2021-11-03 19:33:11 -07:00
parent c6a5fdaa95
commit 529d2a2133
2 changed files with 34 additions and 1 deletions

18
pip.sh Executable file
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@ -0,0 +1,18 @@
#!/usr/bin/env bash
#
# This file is managed centrally by release-tools and should not be modified
# within individual charm repos. See the 'global' dir contents for available
# choices of tox.ini for OpenStack Charms:
# https://github.com/openstack-charmers/release-tools
#
# setuptools 58.0 dropped the support for use_2to3=true which is needed to
# install blessings (an indirect dependency of charm-tools).
#
# More details on the beahvior of tox and virtualenv creation can be found at
# https://github.com/tox-dev/tox/issues/448
#
# This script is wrapper to force the use of the pinned versions early in the
# process when the virtualenv was created and upgraded before installing the
# depedencies declared in the target.
pip install 'pip<20.3' 'setuptools<50.0.0'
pip "$@"

17
tox.ini
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@ -11,6 +11,21 @@ envlist = pep8,py3
sitepackages = False
# NOTE: Avoid false positives by not skipping missing interpreters.
skip_missing_interpreters = False
# NOTES:
# * We avoid the new dependency resolver by pinning pip < 20.3, see
# https://github.com/pypa/pip/issues/9187
# * Pinning dependencies requires tox >= 3.2.0, see
# https://tox.readthedocs.io/en/latest/config.html#conf-requires
# * It is also necessary to pin virtualenv as a newer virtualenv would still
# lead to fetching the latest pip in the func* tox targets, see
# https://stackoverflow.com/a/38133283
requires =
pip < 20.3
virtualenv < 20.0
setuptools<50.0.0
# NOTE: https://wiki.canonical.com/engineering/OpenStack/InstallLatestToxOnOsci
minversion = 3.18.0
[testenv]
setenv = VIRTUAL_ENV={envdir}
@ -21,7 +36,7 @@ setenv = VIRTUAL_ENV={envdir}
JUJU_REPOSITORY={toxinidir}/build
passenv = http_proxy https_proxy INTERFACE_PATH LAYER_PATH JUJU_REPOSITORY
install_command =
pip install {opts} {packages}
{toxinidir}/pip.sh install {opts} {packages}
deps =
-r{toxinidir}/requirements.txt