matrix-glib-sdk/CONTRIBUTING.md

# Contributing code to the Matrix GLib SDK

Everyone is welcome to contribute code to this SDK, provided that they
are willing to license their contributions under the same license as
the project itself. We follow a simple 'inbound=outbound' model for
contributions: the act of submitting an 'inbound' contribution means
that the contributor agrees to license the code under the same terms
as the project's overall 'outbound' license - which is the GNU Lesser
General Public License (see COPYING).

## How to contribute

The preferred and easiest way to contribute changes to the Matrix GLib
SDK is to fork the project on GitHub, and then create a pull request
to ask us to pull your changes into our repo
(https://help.github.com/articles/using-pull-requests/)

**The single biggest thing you need to know is: please base your changes on
the develop branch - /not/ master.**

We use the master branch to track the most recent release, so that
folks who blindly clone the repo and automatically check out master
get something that works. Develop is the unstable branch where all the
development actually happens: the workflow is that contributors should
fork the develop branch to make a 'feature' branch for a particular
contribution, and then make a pull request to merge this back into the
matrix.org 'official' develop branch. We use GitHub's pull request
workflow to review the contribution, and either ask you to make any
refinements needed or merge it and make them ourselves. The changes
will then land on master when we next do a release.

## Code style

The projects have a loosely-defined code-style, which is close to
GNOME's with a few differences. Check the source files for a hint.

Please ensure your changes match the cosmetic style of the project,
and **never** mix cosmetic and functional changes in the same commit,
as it makes it horribly hard to review otherwise.

## Attribution

Everyone who contributes anything to this SDK is welcome to be listed in the
AUTHORS file for the project in question. Please feel free to include a
change to AUTHORS in your pull request to list yourself and a short
description of the area(s) you've worked on.

## Sign off

In order to have a concrete record that your contribution is
intentional and you agree to license it under the same terms as the
project's license, we've adopted the same lightweight approach that
the
[Linux Kernel](https://www.kernel.org/doc/Documentation/SubmittingPatches),
[Docker](https://github.com/docker/docker/blob/master/CONTRIBUTING.md),
and many other projects use: the DCO
([Developer Certificate of Origin](http://developercertificate.org/)). This
is a simple declaration that you wrote the contribution or otherwise
have the right to contribute it to the SDK:

    Developer Certificate of Origin
    Version 1.1

    Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
    660 York Street, Suite 102,
    San Francisco, CA 94110 USA

    Everyone is permitted to copy and distribute verbatim copies of this
    license document, but changing it is not allowed.

    Developer's Certificate of Origin 1.1

    By making a contribution to this project, I certify that:

    (a) The contribution was created in whole or in part by me and I
        have the right to submit it under the open source license
        indicated in the file; or

    (b) The contribution is based upon previous work that, to the best
        of my knowledge, is covered under an appropriate open source
        license and I have the right under that license to submit that
        work with modifications, whether created in whole or in part
        by me, under the same open source license (unless I am
        permitted to submit under a different license), as indicated
        in the file; or

    (c) The contribution was provided directly to me by some other
        person who certified (a), (b) or (c) and I have not modified
        it.

    (d) I understand and agree that this project and the contribution
        are public and that a record of the contribution (including all
        personal information I submit with it, including my sign-off) is
        maintained indefinitely and may be redistributed consistent with
        this project or the open source license(s) involved.

If you agree to this for your contribution, then all that's needed is
to include the line in your commit or pull request comment:

    Signed-off-by: Your Name <your@email.example.org>

using your real name; unfortunately pseudonyms and anonymous
contributions can't be accepted. Git makes this trivial - just use the
`-s` flag when you do `git commit`, having first set `user.name` and
`user.email` git configs (which you should have done anyway :)

## Conclusion

That's it! Similar to Matrix, this SDK is a very open and project as
you might expect given our obsession with open communication. If we're
going to successfully matrix together all the fragmented communication
technologies out there we are reliant on contributions and
collaboration from the community to do so. So please get involved -
and we hope you have as much fun hacking on Matrix as we do!