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Contributing to Compose
Compose is a part of the Docker project, and follows the same rules and principles. Take a read of Docker's contributing guidelines to get an overview.
TL;DR
Pull requests will need:
- Tests
- Documentation
- To be signed off
- A logical series of well written commits
Development environment
If you're looking contribute to Compose but you're new to the project or maybe even to Python, here are the steps that should get you started.
- Fork https://github.com/docker/compose to your username.
- Clone your forked repository locally
git clone git@github.com:yourusername/compose.git
. - Enter the local directory
cd compose
. - Set up a development environment by running
python setup.py develop
. This will install the dependencies and set up a symlink from yourdocker-compose
executable to the checkout of the repository. When you now rundocker-compose
from anywhere on your machine, it will run your development version of Compose.
Running the test suite
Use the test script to run linting checks and then the full test suite against different Python interpreters:
$ script/test
Tests are run against a Docker daemon inside a container, so that we can test
against multiple Docker versions. By default they'll run against only the latest
Docker version - set the DOCKER_VERSIONS
environment variable to "all" to run
against all supported versions:
$ DOCKER_VERSIONS=all script/test
Arguments to script/test
are passed through to the nosetests
executable, so
you can specify a test directory, file, module, class or method:
$ script/test tests/unit
$ script/test tests/unit/cli_test.py
$ script/test tests.integration.service_test
$ script/test tests.integration.service_test:ServiceTest.test_containers
Building binaries
script/build-linux
will build the Linux binary inside a Docker container:
$ script/build-linux
script/build-osx
will build the Mac OS X binary inside a virtualenv:
$ script/build-osx
For official releases, you should build inside a Mountain Lion VM for proper compatibility. Run the this script first to prepare the environment before building - it will use Homebrew to make sure Python is installed and up-to-date.
$ script/prepare-osx
Release process
- Open pull request that:
- Updates the version in
compose/__init__.py
- Updates the binary URL in
docs/install.md
- Adds release notes to
CHANGES.md
-
Create unpublished GitHub release with release notes
-
Build Linux version on any Docker host with
script/build-linux
and attach to release -
Build OS X version on Mountain Lion with
script/build-osx
and attach to release asdocker-compose-Darwin-x86_64
anddocker-compose-Linux-x86_64
. -
Publish GitHub release, creating tag
-
Update website with
script/deploy-docs
-
Upload PyPi package
$ git checkout $VERSION $ python setup.py sdist upload