Seamless integration of Tox into Travis CI
Project description
tox-travis is a simple plugin for tox that allows you to use Travis CI’s multiple python version feature as well as tox’s full configurability in a straightforward way.
Usage
Configure the Python versions to test with in travis.yml:
sudo: false
language: python
python:
- "2.7"
- "3.4"
install: pip install tox-travis
script: tox
And it will run the appropriate testenvs, which by default are any declared env with py27 or py34 as factors of the name. If no environments match a given factor, the py27 or py34 envs are used as a fallback.
Advanced Configuration
To customize what environments tox will run on Travis, add a section to tox.ini telling it what environments to run under which versions of Python:
[tox]
envlist = py{27,34}-django{17,18}, docs
[travis]
python =
2.7: py27
3.4: py34, docs
This would run the Python 2.7 variants under 2.7, and the Python 3.4 variants and the docs env under 3.4.
Note that Travis won’t run all the envs simultaneously, because it’s build matrix is only aware of the Python versions. Only one Travis build will be run per Python version, unless other settings are specified in the Travis build matrix.
If you are using multiple Travis factors, then you can use those factors to decide what will run. For example, see the following .travis.yml and tox.ini:
sudo: false
language: python
python:
- "2.7"
- "3.4"
env:
- DJANGO="1.7"
- DJANGO="1.8"
include:
- os: osx
language: generic
install: pip install tox-travis
script: tox
[tox]
envlist = py{27,34}-django{17,18}, docs
[travis]
os =
linux: py{27,34}-django{17,18}, docs
osx: py{27,34}-django{17,18}
python =
3.4: py34, docs
[travis:env]
DJANGO =
1.7: django17
1.8: django18, docs
Travis will run 5 different jobs, which will each run jobs as specified by the factors given.
os: linux (default), language: python, python: 2.7, env: DJANGO=1.7
This will run the env py27-django17, because py27 is the default, and django17 is specified.
os: linux (default), language: python, python: 3.4, env: DJANGO=1.7
This will run the env py34-django17, but not docs, because docs is not included in the DJANGO 1.7 configuration.
os: linux (default), language: python, python: 2.7, env: DJANGO=1.8
This will run the env py27-django18, because py27 is the default. docs is not run, because Python 2.7 doesn’t include docs in the defaults that are not overridden.
os: linux (default), language: python, python: 3.4, env: DJANGO=1.8
This will run the envs py34-django18 and docs, because all specified factors match, and docs is present in all related factors.
os: osx, language: generic
This will run envs py27-django17, py34-django17, py27-django18, and py34-django18, because the os factor is present, and limits it to just those envs.
After All
Inspired by travis-after-all and travis_after_all, this feature allows a job to wait for other jobs to finish before it calls itself complete.
There are three environment variables that can be used to configure this feature.
GITHUB_TOKEN. This is required, and should be encrypted in the .travis.yml. This is used as the authentication method for the Travis CI API.
TRAVIS_POLLING_INTERVAL. How often, in seconds, we should check the API to see if the rest of the jobs have completed. Defaults to 5.
TRAVIS_API_URL. The base URL to the Travis API for this build. This defaults to https://api.travis-ci.org. A common override will be to the commercial version, at https://api.travis-ci.com.
Configure which job to wait on by adding the [travis:after] section to the tox.ini file. The travis key looks for values that would be keys in various items in the [travis] section, and the env key looks for values that would be keys in items in the [travis:env] section.
For example:
[travis:after]
travis = python: 3.5
env = DJANGO: 1.8
Then run tox in your test command like this:
tox --travis-after
For example, consider this mocked up .travis.yml, that corresponds to using the above travis:after section:
sudo: false
language: python
python:
- "2.6"
- "3.5"
env:
global:
- GITHUB_TOKEN='spamandeggs' # Make sure this is encrypted!
matrix:
- DJANGO="1.7"
- DJANGO="1.8"
install: pip install tox-travis
script: tox --travis-after
deploy:
provider: pypi
user: spam
password: eggs # Make sure to encrypt passwords!
on:
tags: true
python: 3.5
condition: DJANGO = "1.8"
distributions: sdist bdist_wheel
This example deploys when the build is from a tag and the build is on Python 3.5 and the build is using DJANGO=”1.8”. Together tox --travis-after and Tox’s on conditions make sure that the deploy only happens after all tests pass.
If any configuration item does not match, or if no configuration is given, this will run exactly as it would normally. However, if the configuration matches the current job, then it will wait for all the other jobs to complete before it will be willing to return a success return code.
If the tests fail, then it will not bother waiting, but will rather return immediately. If it determines that another required job has failed, it will return an error indicating that jobs failed.
You can use this together with a deployment configuration to ensure that this job is the very last one to complete, and will only be successful if all others are successful, so that you can be more confident that you are shipping a working release.
The accepted configuration keys in the [travis:after] section are:
toxenv. Match with the running toxenvs, based on the TOXENV environment variable, which is set automatically by Tox-Travis. Expansion is allowed, and if set all environments listed must be present in the TOXENV environment variable.
travis. Match with known Travis factors, as is done in the [travis] section. For instance, specifying that we should wait when python is version 2.7 would look like travis = python: 2.7.
env. Match with environment variable factors, as might be specified in the [travis:env] section. For instance, if we want to match that DJANGO is 1.9, then it would look like env = DJANGO: 1.9. The value must match exactly to succeed.
0.7.1 (2016-12-20)
Fix the README markup to display properly on PyPI.
0.7 (2016-12-20)
Deprecate the [tox:travis] section in favor of the python key to the new [travis] section.
Allow specifying envs by other Travis factors. Includes os, language, and python.
Allow specifying envs for environment variables, in a new [travis:env] section.
Special thanks to @rpkibly for driving this work (#34)
Backward incompatible changes:
If any declared tox envs match the envs matched from factors, no additional envs will be included automatically. For example, if envlist is docs, and the configuration for python 3.4 is py34, docs, it previously would have run both the declared docs env, as well as the undeclared py34 env, while now it will only run the declared docs env. This may result in fewer envs running than expected, but in edge cases that were believed to be unlikely.
Previously, if no Python version was given in the environment, it would automatically choose an appropriate env based on the Python version running. Now if no Python version is given in the environment no env is determined by default, which may result in more envs running in a job than expected.
Add the --travis-after command to enable a job to wait until all others have completed. (#13) - thanks to @ssbarnea for the feature suggestion.
0.6 (2016-10-13)
Require pytest<3 for Python 3.2 (#33)
0.5 (2016-07-28)
Prefer TRAVIS_PYTHON_VERSION to sys.version_info (#14) - thanks to @jayvdb for the code review
Add Python 3.2 support (#17) - thanks to @jayvdb for the bug report, discussion, and code review
Support PyPy3 v5.2 with setuptools hackery (#24) - thanks to @jayvdb for the pull request
0.4 (2016-02-10)
Generate default env from sys.version_info (#9) - thanks to @jayvdb for the bug report
0.3 (2016-01-26)
Match against testenvs that are only declared as sections (#7) - thanks to @epsy
Include unmatched envs verbatim to run (also #7) - thanks to @epsy again
0.2 (2015-12-10)
Choose testenvs from tox.ini by matching factors.
This is a slightly backward incompatible change
If a Python version isn’t declared in the tox.ini, it may not be run.
Additional envs may be run if they also match the factors, for example, py34-django17 and py34-django18 will both match the default for Python 3.4 (py34).
Factor matching extends to overrides set in tox.ini.
0.1 (2015-05-21)
Initial Release
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