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mitogen/.ci
Alex Willmer 8151577b75 CI: Limit to Tox < 4.0 to avoid plugin incompatibility
I'm abandoning tox-factor because having any [tox] requires = ... causes tox
3.x to create an isolated virtualenv for running tox itself. Since Tox 4.x was
released that virtualenv gets it, which is incompatible with the tox-factor
plugin.
e.g.
```
Traceback (most recent call last):
File
"/Users/runner/work/1/s/.tox/.tox/lib/python3.10/site-packages/tox_factor/compat.py",
line 2, in <module>
    from tox.config.parallel import ENV_VAR_KEY_PUBLIC as TOX_PARALLEL_ENV
ModuleNotFoundError: No module named 'tox.config.parallel'
```
1 year ago
..
soak .ci: import soak scripts. 5 years ago
README.md ci: Switch Continuous Integration to Tox 3 years ago
ansible_install.py ci: Switch Continuous Integration to Tox 3 years ago
ansible_tests.py tests: Don't rely on facts when setting become 2 years ago
azure-pipelines-steps.yml CI: Limit to Tox < 4.0 to avoid plugin incompatibility 1 year ago
azure-pipelines.yml ci: Upgrade VM Images to macOS 11 and Ubuntu 20.04 2 years ago
ci_lib.py ci: Ignore WALinuxAgent processes in Azure Piplines CI runner 2 years ago
debops_common_install.py tests: Suppress pip version warnings 2 years ago
debops_common_tests.py Support for Ansible 3 & 4 3 years ago
localhost_ansible_install.py ci: Switch Continuous Integration to Tox 3 years ago
localhost_ansible_tests.py Remove unused module imports 2 years ago
mitogen_install.py ci: Switch Continuous Integration to Tox 3 years ago
mitogen_py24_install.py ci: Switch Continuous Integration to Tox 3 years ago
mitogen_py24_tests.py issue #477: add mitogen_py24 CI test type. 5 years ago
mitogen_tests.py issue #482: ci: add stray process checks to all jobs 5 years ago

README.md

.ci

This directory contains scripts for Continuous Integration platforms. Currently Azure Pipelines, but they will also happily run on any Debian-like machine.

The scripts are usually split into _install and _test steps. The _install step will damage your machine, the _test step will just run the tests the way CI runs them.

There is a common library, ci_lib.py, which just centralized a bunch of random macros and also environment parsing.

Some of the scripts allow you to pass extra flags through to the component under test, e.g. ../../.ci/ansible_tests.py -vvv will run with verbose.

Hack these scripts until your heart is content. There is no pride to be found here, just necessity.

ci_lib.run_batches()

There are some weird looking functions to extract more paralellism from the build. The above function takes lists of strings, arranging for the strings in each list to run in order, but for the lists to run in parallel. That's great for doing setup.py install while pulling a Docker container, for example.

Environment Variables

  • TARGET_COUNT: number of targets for debops_ run. Defaults to 2.
  • DISTRO: the mitogen_ tests need a target Docker container distro. This name comes from the Docker Hub mitogen user, i.e. mitogen/$DISTRO-test
  • DISTROS: the ansible_ tests can run against multiple targets simultaneously, which speeds things up. This is a space-separated list of DISTRO names, but additionally, supports:
    • debian-py3: when generating Ansible inventory file, set ansible_python_interpreter to python3, i.e. run a test where the target interpreter is Python 3.
    • debian*16: generate 16 Docker containers running Debian. Also works with -py3.