# Source charm: ./tox.ini
# 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

[tox]
skipsdist = True
envlist = pep8,py3
# NOTE: Avoid build/test env pollution by not enabling sitepackages.
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}
         PYTHONHASHSEED=0
         TERM=linux
         LAYER_PATH={toxinidir}/layers
         INTERFACE_PATH={toxinidir}/interfaces
         JUJU_REPOSITORY={toxinidir}/build
passenv = http_proxy https_proxy INTERFACE_PATH LAYER_PATH JUJU_REPOSITORY
install_command =
  {toxinidir}/pip.sh install {opts} {packages}
deps =
    -r{toxinidir}/requirements.txt

[testenv:build]
basepython = python3
# Nothing to charm-build as this is a layer without a src directory.
commands = /bin/true

[testenv:add-build-lock-file]
basepython = python3
# Nothing to charm-build as this is a layer without a src directory.
commands = /bin/true

[testenv:py3]
basepython = python3
deps = -r{toxinidir}/test-requirements.txt
# TODO: Need to write unit tests then switch command to use stestr.
commands = /bin/true

[testenv:py35]
basepython = python3.5
deps = -r{toxinidir}/test-requirements.txt
# TODO: Need to write unit tests then switch command to use stestr.
commands = /bin/true

[testenv:py36]
basepython = python3.6
deps = -r{toxinidir}/test-requirements.txt
# TODO: Need to write unit tests then switch command to use stestr.
commands = /bin/true

[testenv:py37]
basepython = python3.7
deps = -r{toxinidir}/test-requirements.txt
# TODO: Need to write unit tests then switch command to use stestr.
commands = /bin/true

[testenv:py38]
basepython = python3.8
deps = -r{toxinidir}/test-requirements.txt
# TODO: Need to write unit tests then switch command to use stestr.
commands = /bin/true

[testenv:py39]
basepython = python3.9
deps = -r{toxinidir}/test-requirements.txt
# TODO: Need to write unit tests then switch command to use stestr.
commands = /bin/true

[testenv:pep8]
basepython = python3
deps = flake8==3.9.2
       charm-tools==2.8.3
commands = flake8 {posargs}

[testenv:cover]
# Technique based heavily upon
# https://github.com/openstack/nova/blob/master/tox.ini
basepython = python3
deps = -r{toxinidir}/requirements.txt
       -r{toxinidir}/test-requirements.txt
setenv =
    {[testenv]setenv}
    PYTHON=coverage run
commands =
    coverage erase
    stestr run --slowest {posargs}
    coverage combine
    coverage html -d cover
    coverage xml -o cover/coverage.xml
    coverage report

[coverage:run]
branch = True
concurrency = multiprocessing
parallel = True
source =
    .
omit =
    .tox/*
    */charmhelpers/*
    unit_tests/*

[testenv:venv]
basepython = python3
commands = {posargs}

[flake8]
# E402 ignore necessary for path append before sys module import in actions
ignore = E402,W503,W504