85 lines
3.8 KiB
Markdown
85 lines
3.8 KiB
Markdown
# Contributing to Dendrite
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Everyone is welcome to contribute to Dendrite! We aim to make it as easy as
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possible to get started.
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Please ensure that you sign off your contributions! See [Sign Off](#sign-off)
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section below.
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## Getting up and running
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See [INSTALL.md](INSTALL.md) for instructions on setting up a running dev
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instance of dendrite, and [CODE_STYLE.md](CODE_STYLE.md) for the code style
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guide.
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As of May 2019, we're not using `gb` anymore, which is the tool we had been
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using for managing our dependencies. We're now using Go modules. To build
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Dendrite, run the `build.sh` script at the root of this repository (which runs
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`go install` under the hood), and to run unit tests, run `go test ./...` (which
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should pick up any unit test and run it). There are also [scripts](scripts) for
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[linting](scripts/find-lint.sh) and doing a [build/test/lint
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run](scripts/build-test-lint.sh).
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## Continuous Integration
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When a Pull Request is submitted, continuous integration jobs are run
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automatically to ensure the code builds and is relatively well-written. Checks
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are run on [Buildkite](https://buildkite.com/matrix-dot-org/dendrite/) and
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[CircleCI](https://circleci.com/gh/matrix-org/dendrite/). The Buildkite
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pipeline can be found in Matrix.org's [pipelines
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repository](https://github.com/matrix-org/pipelines).
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If a job fails, click the "details" button and you should be taken to the job's
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logs.
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![Click the details button on the failing build step](docs/images/details-button-location.jpg)
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Scroll down to the failing step and you should see some log output. Scan
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the logs until you find what it's complaining about, fix it, submit a new
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commit, then rinse and repeat until CI passes.
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### Running CI Tests Locally
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To save waiting for CI to finish after every commit, it is ideal to run the
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checks locally before pushing, fixing errors first. This also saves other
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people time as only so many PRs can be tested at a given time.
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To execute what Buildkite tests, simply run `./scripts/build-test-lint.sh`.
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This script will build the code, lint it, and run `go test ./...` with race
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condition checking enabled. If something needs to be changed, fix it and then
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run the script again until it no longer complains. Be warned that the linting
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can take a significant amount of CPU and RAM.
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CircleCI simply runs [Sytest](https://github.com/matrix-org/sytest) with a test
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whitelist. See
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[docs/sytest.md](https://github.com/matrix-org/dendrite/blob/master/docs/sytest.md#using-a-sytest-docker-image)
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for instructions on setting it up to run locally.
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## Picking Things To Do
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If you're new then feel free to pick up an issue labelled [good first issue](https://github.com/matrix-org/dendrite/labels/good%20first%20issue).
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These should be well-contained, small pieces of work that can be picked up to
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help you get familiar with the code base.
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Once you're comfortable with hacking on Dendrite there are issues lablled as
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[help wanted](https://github.com/matrix-org/dendrite/labels/help%20wanted), these
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are often slightly larger or more complicated pieces of work but are hopefully
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nonetheless fairly well-contained.
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We ask people who are familiar with Dendrite to leave the [good first issue](https://github.com/matrix-org/dendrite/labels/good%20first%20issue)
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issues so that there is always a way for new people to come and get involved.
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## Getting Help
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For questions related to developing on Dendrite we have a dedicated room on
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Matrix [#dendrite-dev:matrix.org](https://matrix.to/#/#dendrite-dev:matrix.org)
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where we're happy to help.
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For more general questions please use [#dendrite:matrix.org](https://matrix.to/#/#dendrite:matrix.org).
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## Sign off
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We ask that everyone who contributes to the project signs off their
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contributions, in accordance with the [DCO](https://github.com/matrix-org/matrix-doc/blob/master/CONTRIBUTING.rst#sign-off).
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