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ReStructuredText
169 lines
7.6 KiB
ReStructuredText
Contributing code to Matrix
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===========================
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Everyone is welcome to contribute code to Matrix
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(https://github.com/matrix-org), provided that they are willing to license
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their contributions under the same license as the project itself. We follow a
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simple 'inbound=outbound' model for contributions: the act of submitting an
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'inbound' contribution means that the contributor agrees to license the code
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under the same terms as the project's overall 'outbound' license - in our
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case, this is almost always Apache Software License v2 (see LICENSE).
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How to contribute
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~~~~~~~~~~~~~~~~~
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The preferred and easiest way to contribute changes to Matrix is to fork the
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relevant project on github, and then create a pull request to ask us to pull
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your changes into our repo
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(https://help.github.com/articles/using-pull-requests/)
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**The single biggest thing you need to know is: please base your changes on
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the develop branch - /not/ master.**
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We use the master branch to track the most recent release, so that folks who
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blindly clone the repo and automatically check out master get something that
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works. Develop is the unstable branch where all the development actually
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happens: the workflow is that contributors should fork the develop branch to
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make a 'feature' branch for a particular contribution, and then make a pull
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request to merge this back into the matrix.org 'official' develop branch. We
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use github's pull request workflow to review the contribution, and either ask
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you to make any refinements needed or merge it and make them ourselves. The
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changes will then land on master when we next do a release.
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We use `CircleCI <https://circleci.com/gh/matrix-org>`_ and `Travis CI
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<https://travis-ci.org/matrix-org/synapse>`_ for continuous integration. All
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pull requests to synapse get automatically tested by Travis and CircleCI.
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If your change breaks the build, this will be shown in GitHub, so please
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keep an eye on the pull request for feedback.
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To run unit tests in a local development environment, you can use:
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- ``tox -e py27`` (requires tox to be installed by ``pip install tox``) for
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SQLite-backed Synapse on Python 2.7.
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- ``tox -e py35`` for SQLite-backed Synapse on Python 3.5.
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- ``tox -e py36`` for SQLite-backed Synapse on Python 3.6.
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- ``tox -e py27-postgres`` for PostgreSQL-backed Synapse on Python 2.7
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(requires a running local PostgreSQL with access to create databases).
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- ``./test_postgresql.sh`` for PostgreSQL-backed Synapse on Python 2.7
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(requires Docker). Entirely self-contained, recommended if you don't want to
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set up PostgreSQL yourself.
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Docker images are available for running the integration tests (SyTest) locally,
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see the `documentation in the SyTest repo
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<https://github.com/matrix-org/sytest/blob/develop/docker/README.md>`_ for more
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information.
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Code style
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~~~~~~~~~~
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All Matrix projects have a well-defined code-style - and sometimes we've even
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got as far as documenting it... For instance, synapse's code style doc lives
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at https://github.com/matrix-org/synapse/tree/master/docs/code_style.rst.
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Please ensure your changes match the cosmetic style of the existing project,
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and **never** mix cosmetic and functional changes in the same commit, as it
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makes it horribly hard to review otherwise.
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Changelog
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~~~~~~~~~
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All changes, even minor ones, need a corresponding changelog / newsfragment
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entry. These are managed by Towncrier
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(https://github.com/hawkowl/towncrier).
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To create a changelog entry, make a new file in the ``changelog.d``
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file named in the format of ``PRnumber.type``. The type can be
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one of ``feature``, ``bugfix``, ``removal`` (also used for
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deprecations), or ``misc`` (for internal-only changes). The content of
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the file is your changelog entry, which can contain Markdown
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formatting. Adding credits to the changelog is encouraged, we value
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your contributions and would like to have you shouted out in the
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release notes!
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For example, a fix in PR #1234 would have its changelog entry in
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``changelog.d/1234.bugfix``, and contain content like "The security levels of
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Florbs are now validated when recieved over federation. Contributed by Jane
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Matrix".
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Attribution
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~~~~~~~~~~~
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Everyone who contributes anything to Matrix is welcome to be listed in the
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AUTHORS.rst file for the project in question. Please feel free to include a
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change to AUTHORS.rst in your pull request to list yourself and a short
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description of the area(s) you've worked on. Also, we sometimes have swag to
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give away to contributors - if you feel that Matrix-branded apparel is missing
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from your life, please mail us your shipping address to matrix at matrix.org and
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we'll try to fix it :)
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Sign off
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~~~~~~~~
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In order to have a concrete record that your contribution is intentional
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and you agree to license it under the same terms as the project's license, we've adopted the
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same lightweight approach that the Linux Kernel
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(https://www.kernel.org/doc/Documentation/SubmittingPatches), Docker
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(https://github.com/docker/docker/blob/master/CONTRIBUTING.md), and many other
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projects use: the DCO (Developer Certificate of Origin:
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http://developercertificate.org/). This is a simple declaration that you wrote
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the contribution or otherwise have the right to contribute it to Matrix::
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Developer Certificate of Origin
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Version 1.1
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Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
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660 York Street, Suite 102,
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San Francisco, CA 94110 USA
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Everyone is permitted to copy and distribute verbatim copies of this
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license document, but changing it is not allowed.
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Developer's Certificate of Origin 1.1
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By making a contribution to this project, I certify that:
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(a) The contribution was created in whole or in part by me and I
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have the right to submit it under the open source license
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indicated in the file; or
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(b) The contribution is based upon previous work that, to the best
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of my knowledge, is covered under an appropriate open source
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license and I have the right under that license to submit that
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work with modifications, whether created in whole or in part
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by me, under the same open source license (unless I am
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permitted to submit under a different license), as indicated
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in the file; or
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(c) The contribution was provided directly to me by some other
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person who certified (a), (b) or (c) and I have not modified
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it.
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(d) I understand and agree that this project and the contribution
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are public and that a record of the contribution (including all
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personal information I submit with it, including my sign-off) is
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maintained indefinitely and may be redistributed consistent with
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this project or the open source license(s) involved.
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If you agree to this for your contribution, then all that's needed is to
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include the line in your commit or pull request comment::
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Signed-off-by: Your Name <your@email.example.org>
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We accept contributions under a legally identifiable name, such as
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your name on government documentation or common-law names (names
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claimed by legitimate usage or repute). Unfortunately, we cannot
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accept anonymous contributions at this time.
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Git allows you to add this signoff automatically when using the ``-s``
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flag to ``git commit``, which uses the name and email set in your
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``user.name`` and ``user.email`` git configs.
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Conclusion
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~~~~~~~~~~
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That's it! Matrix is a very open and collaborative project as you might expect
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given our obsession with open communication. If we're going to successfully
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matrix together all the fragmented communication technologies out there we are
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reliant on contributions and collaboration from the community to do so. So
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please get involved - and we hope you have as much fun hacking on Matrix as we
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do!
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